F49L320UA-90TG - Elite Semiconductor Memory Technology, Inc.

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 1/55

32 Mbit (4M x 8/2M x 16)

3V Only CMOS Flash Memory

1. FEATURES

z Single supply voltage 2.7V-3.6V

z Fast access time: 70/90 ns

z 4,194,304x8 / 2,097,152x16 switchable by BYTE pin

Compatible with JEDEC standard

- Pin-out, packages and software commands compatible with

single-power supply Flash

z Low power consumption

- 20mA typical active current

- 25uA typical standby current 

z 100,000 program/erase cycles typically

z 20 Years Data Retention 

z Command register architecture

- Byte Word Programming (9μs/11μs typical)

- Byte Mode : eight 8KB, sixty three 64KB sectors.

- Word Mode : eight 4K word, sixty-three 32 K word sectors.

z Auto Erase (chip & sector) and Auto Program

- Any combination of sectors can be erased concurrently;

Chip erase also provided.

- Automatically program and verify data at specified address

z Erase Suspend/Erase Resume

- Suspend or Resume erasing sectors to allow the

read/program in another sector

z Secured Silicon Sector

- 128word sector for permanent, secure identification through

an 8- word random Electronic Serial Number

- May be programmed and locked at the factory or by the

customer

- Accessible through a command sequence.

z Ready/Busy (RY/ BY )

- RY/B

output pin for detection of program or erase operation

completion

z End of program or erase detection

- Data polling

- Toggle bits

z Hardware reset

- Hardware pin ( ESETR ) resets the internal state machine to

the read mode

z Sector Protection /Unprotection

- Hardware Protect/Unprotect any combination of sectors from

a program or erase operation.

z Low VCC Write inhibit is equal to or less than 2.0V

z Boot Sector Architecture

- U = Upper Boot Block

- B = Bottom Boot Block

z Packages available:

- 48-pin TSOPI

- All Pb-free products are RoHS-Compliant

z CFI (Common Flash Interface) complaint

- Provides device-specific information to the system, allowing

host software to easily reconfigure to different Flash devices.

2. ORDERING INFORMATION

Part No Boot Speed Package Comments Part No Boot Speed Package Comments

F49L320UA-70TG Upper 70 ns TSOPI Pb-free F49L320UA-90TG Upper 90 ns TSOPI Pb-free

F49L320BA-70TG Bottom 70 ns TSOPI Pb-free F49L320BA-90TG Bottom 90 ns TSOPI Pb-free

3. GENERAL DESCRIPTION

The F49L320UA/F49L320BA is a 32 Megabit, 3V only CMOS

Flash memory device organized as 4M bytes of 8 bits or 2M

words of 16bits. This device is packaged in standard 48-pin

TSOP. It is designed to be programmed and erased both in

system and can in standard EPROM programmers.

With access times of 70 ns and 90 ns, the

F49L320UA/F49L320BA allows the operation of high-speed

microprocessors. The device has separate chip enable CE , write

enable WE , and output enable O

controls. ESMT’s memory

devices reliably store memory data even after 100,000 program

and erase cycles.

The F49L320UA/F49L320BA is entirely pin and command set

compatible with the JEDEC standard for 32 Megabit Flash

memory devices. Commands are written to

The F49L320UA/F49L320BA features a sector erase architecture.

The device array is divided into eight 8KB, sixty-three 64KB for

byte mode. The device memory array is divided into eight 4K

word, sixty-three 32K word sectors for word mode. Sectors can

be erased individually or in groups without affecting the data in

other sectors. Multiple-sector erase and whole chip erase

capabilities provide the flexibility to revise the data in the

device.

The sector protect/unprotect feature disables both program and

erase operations in any combination of the sectors of the

memory. This can be achieved in-system or via programming

equipment.

A low VCC detector inhibits write operations on loss of power.

End of program or erase is detected by the Ready/Busy status

pin, Data Polling of DQ7, or by the Toggle Bit I feature on DQ6.

Once the program or erase cycle has been successfully

completed, the device internally resets to the Read mode. The

command register using standard microprocessor write

timings.

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 2/55

4. PIN CONFIGURATIONS

4.1 48-pin TSOP

4.2 Pin Description

Symbol Pin Name Functions

A0~A20 Address Input To provide memory addresses.

DQ0~DQ14 Data Input/Output To output data when Read and receive data when Write.

The outputs are in tri-state when OE or CE is high.

DQ15/A-1 Q15 (Word mode) /

LSB addr (Byte Mode)

To bi-direction date I/O when BYTE is High

To input address when BYTE is Low

CE Chip Enable To activate the device when CE is low.

OE Output Enable To gate the data output buffers.

WE Write Enable To control the Write operations.

RESET Reset Hardware Reset Pin/Sector Protect Unprotect

BYTE Word/Byte selection input To select word mode or byte mode

RY/ BY Ready/Busy To check device operation status

VCC Power Supply To provide power

GND Ground

NC No connection

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 3/55

5. SECTOR STRUCTURE

Table 1: F49L320UA Sector Address Table

Sector Size Address range Sector Address

Sector

Byte Mode Word Mode Byte Mode(x8) Word Mode(x16) A20 A19 A18 A17 A16 A15 A14 A13 A12

SA0 64Kbytes 32Kwords 000000-00FFFF 00000-07FFF 0 0 0 0 0 0 X X X

SA1 64Kbytes 32Kwords 010000-01FFFF 08000-0FFFF 0 0 0 0 0 1 X X X

SA2 64Kbytes 32Kwords 020000-02FFFF 10000-17FFF 0 0 0 0 1 0 X X X

SA3 64Kbytes 32Kwords 030000-03FFFF 18000-1FFFF 0 0 0 0 1 1 X X X

SA4 64Kbytes 32Kwords 040000-04FFFF 20000-27FFF 0 0 0 1 0 0 X X X

SA5 64Kbytes 32Kwords 050000-05FFFF 28000-2FFFF 0 0 0 1 0 1 X X X

SA6 64Kbytes 32Kwords 060000-06FFFF 30000-37FFF 0 0 0 1 1 0 X X X

SA7 64Kbytes 32Kwords 070000-07FFFF 38000-3FFFF 0 0 0 1 1 1 X X X

SA8 64Kbytes 32Kwords 080000-08FFFF 40000-47FFF 0 0 1 0 0 0 X X X

SA9 64Kbytes 32Kwords 090000-09FFFF 48000-4FFFF 0 0 1 0 0 1 X X X

SA10 64Kbytes 32Kwords 0A0000-0AFFFF 50000-57FFF 0 0 1 0 1 0 X X X

SA11 64Kbytes 32Kwords 0B0000-0BFFFF 58000-5FFFF 0 0 1 0 1 1 X X X

SA12 64Kbytes 32Kwords 0C0000-0CFFFF 60000-67FFF 0 0 1 1 0 0 X X X

SA13 64Kbytes 32Kwords 0D0000-0DFFFF 68000-6FFFF 0 0 1 1 0 1 X X X

SA14 64Kbytes 32Kwords 0E0000-0EFFFF 70000-77FFF 0 0 1 1 1 0 X X X

SA15 64Kbytes 32Kwords 0F0000-0FFFFF 78000-7FFFF 0 0 1 1 1 1 X X X

SA16 64Kbytes 32Kwords 100000-10FFFF 80000-87FFF 0 1 0 0 0 0 X X X

SA17 64Kbytes 32Kwords 110000-11FFFF 88000-8FFFF 0 1 0 0 0 1 X X X

SA18 64Kbytes 32Kwords 120000-12FFFF 90000-97FFF 0 1 0 0 1 0 X X X

SA19 64Kbytes 32Kwords 130000-13FFFF 98000-9FFFF 0 1 0 0 1 1 X X X

SA20 64Kbytes 32Kwords 140000-14FFFF A0000-A7FFF 0 1 0 1 0 0 X X X

SA21 64Kbytes 32Kwords 150000-15FFFF A8000-AFFFF 0 1 0 1 0 1 X X X

SA22 64Kbytes 32Kwords 160000-16FFFF B0000-B7FFF 0 1 0 1 1 0 X X X

SA23 64Kbytes 32Kwords 170000-17FFFF B8000-BFFF 0 1 0 1 1 1 X X X

SA24 64Kbytes 32Kwords 180000-18FFFF C0000-C7FFF 0 1 1 0 0 0 X X X

SA25 64Kbytes 32Kwords 190000-19FFFF C8000-CFFFF 0 1 1 0 0 1 X X X

SA26 64Kbytes 32Kwords 1A0000-1AFFFF D0000-D7FFF 0 1 1 0 1 0 X X X

SA27 64Kbytes 32Kwords 1B0000-1BFFFF D8000-DFFFF 0 1 1 0 1 1 X X X

SA28 64Kbytes 32Kwords 1C0000-1CFFFF E0000-E7FFF 0 1 1 1 0 0 X X X

SA29 64Kbytes 32Kwords 1D0000-1DFFFF E8000-EFFFF 0 1 1 1 0 1 X X X

SA30 64Kbytes 32Kwords 1E0000-1EFFFF F0000-F7FFF 0 1 1 1 1 0 X X X

SA31 64Kbytes 32Kwords 1F0000-1FFFFF F8000-FFFFF 0 1 1 1 1 1 X X X

SA32 64Kbytes 32Kwords 200000-20FFFF 100000-107FFF 1 0 0 0 0 0 X X X

SA33 64Kbytes 32Kwords 210000-21FFFF 108000-10FFFF 1 0 0 0 0 1 X X X

SA34 64Kbytes 32Kwords 220000-22FFFF 110000-117FFF 1 0 0 0 1 0 X X X

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 4/55

SA35 64Kbytes 32Kwords 230000-23FFFF 118000-11FFFF 1 0 0 0 1 1 X X X

SA36 64Kbytes 32Kwords 240000-24FFFF 120000-127FFF 1 0 0 1 0 0 X X X

SA37 64Kbytes 32Kwords 250000-25FFFF 128000-12FFFF 1 0 0 1 0 1 X X X

SA38 64Kbytes 32Kwords 260000-26FFFF 130000-137FFF 1 0 0 1 1 0 X X X

SA39 64Kbytes 32Kwords 270000-27FFFF 138000-13FFFF 1 0 0 1 1 1 X X X

SA40 64Kbytes 32Kwords 280000-28FFFF 140000-147FFF 1 0 1 0 0 0 X X X

SA41 64Kbytes 32Kwords 290000-29FFFF 148000-14FFFF 1 0 1 0 0 1 X X X

SA42 64Kbytes 32Kwords 2A0000-2AFFFF 150000-157FFF 1 0 1 0 1 0 X X X

SA43 64Kbytes 32Kwords 2B0000-2BFFFF 158000-15FFFF 1 0 1 0 1 1 X X X

SA44 64Kbytes 32Kwords 2C0000-2CFFFF 160000-167FFF 1 0 1 1 0 0 X X X

SA45 64Kbytes 32Kwords 2D0000-2DFFFF 168000-16FFFF 1 0 1 1 0 1 X X X

SA46 64Kbytes 32Kwords 2E0000-2EFFFF 170000-177FFF 1 0 1 1 1 0 X X X

SA47 64Kbytes 32Kwords 2F0000-2FFFFF 178000-17FFFF 1 0 1 1 1 1 X X X

SA48 64Kbytes 32Kwords 300000-30FFFF 180000-187FFF 1 1 0 0 0 0 X X X

SA49 64Kbytes 32Kwords 310000-31FFFF 188000-18FFFF 1 1 0 0 0 1 X X X

SA50 64Kbytes 32Kwords 320000-32FFFF 190000-197FFF 1 1 0 0 1 0 X X X

SA51 64Kbytes 32Kwords 330000-33FFFF 198000-19FFFF 1 1 0 0 1 1 X X X

SA52 64Kbytes 32Kwords 340000-34FFFF 1A0000-1A7FFF 1 1 0 1 0 0 X X X

SA53 64Kbytes 32Kwords 350000-35FFFF 1A8000-1AFFFF 1 1 0 1 0 1 X X X

SA54 64Kbytes 32Kwords 360000-36FFFF 1B0000-1B7FFF 1 1 0 1 1 0 X X X

SA55 64Kbytes 32Kwords 370000-37FFFF 1B8000-1BFFFF 1 1 0 1 1 1 X X X

SA56 64Kbytes 32Kwords 380000-38FFFF 1C0000-1C7FFF 1 1 1 0 0 0 X X X

SA57 64Kbytes 32Kwords 390000-39FFFF 1C8000-1CFFFF 1 1 1 0 0 1 X X X

SA58 64Kbytes 32Kwords 3A0000-3AFFFF 1D0000-1D7FFF 1 1 1 0 1 0 X X X

SA59 64Kbytes 32Kwords 3B0000-3BFFFF 1D8000-1DFFFF 1 1 1 0 1 1 X X X

SA60 64Kbytes 32Kwords 3C0000-3CFFFF 1E0000-1E7FFF 1 1 1 1 0 0 X X X

SA61 64Kbytes 32Kwords 3D0000-3DFFFF 1E8000-1EFFFF 1 1 1 1 0 1 X X X

SA62 64Kbytes 32Kwords 3E0000-3EFFFF 1F0000-1F7FFF 1 1 1 1 1 0 X X X

SA63 8Kbytes 4Kwords 3F0000-3F1FFF 1F8000-1F8FFF 1 1 1 1 1 1 0 0 0

SA64 8Kbytes 4Kwords 3F2000-3F3FFF 1F9000-1F9FFF 1 1 1 1 1 1 0 0 1

SA65 8Kbytes 4Kwords 3F4000-3F5FFF 1FA000-1FAFFF 1 1 1 1 1 1 0 1 0

SA66 8Kbytes 4Kwords 3F6000-3F7FFF 1FB000-1FBFFF 1 1 1 1 1 1 0 1 1

SA67 8Kbytes 4Kwords 3F8000-3F9FFF 1FC000-1FCFFF 1 1 1 1 1 1 1 0 0

SA68 8Kbytes 4Kwords 3FA000-3FBFFF 1FD000-1FDFFF 1 1 1 1 1 1 1 0 1

SA69 8Kbytes 4Kwords 3FC000-3FDFFF 1FE000-1FEFFF 1 1 1 1 1 1 1 1 0

SA70 8Kbytes 4Kwords 3FE000-3FFFFF 1FF000-1FFFFF 1 1 1 1 1 1 1 1 1

Note: Byte Mode: address range A20 : A-1, Word mode : address range A20 : A0

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 5/55

Table 2: F49L320BA Sector Address Table

Sector Size Address range Sector Address

Sector

Byte Mode Word Mode Byte Mode(x8) Word Mode(x16) A20 A19 A18 A17 A16 A15 A14 A13 A12

SA0 8Kbytes 4Kwords

000000-001FFF 00000-00FFF 0 0 0 0 0 0 0 0 0

SA1 8Kbytes 4Kwords

002000-003FFF 01000-01FFF 0 0 0 0 0 0 0 0 1

SA2 8Kbytes 4Kwords

004000-005FFF 02000-02FFF 0 0 0 0 0 0 0 1 0

SA3 8Kbytes 4Kwords

006000-007FFF 03000-03FFF 0 0 0 0 0 0 1 1 1

SA4 8Kbytes 4Kwords

008000-009FFF 04000-04FFF 0 0 0 0 0 0 1 0 0

SA5 8Kbytes 4Kwords

00A000-00BFFF 05000-05FFF 0 0 0 0 0 0 1 0 1

SA6 8Kbytes 4Kwords

00C000-00DFFF 06000-06FFF 0 0 0 0 0 0 1 1 0

SA7 8Kbytes 4Kwords

00E000-00FFFF 07000-07FFF 0 0 0 0 0 0 1 1 1

SA8 64Kbytes 32Kwords 010000-01FFFF 08000-0FFFF 00 0 0 0 1 X X X

SA9 64Kbytes 32Kwords 020000-02FFFF 010000-017FFF 0 0 0 0 1 0 X X X

SA10 64Kbytes 32Kwords 030000-03FFFF 018000-01FFFF 0 0 0 0 1 1 X X X

SA11 64Kbytes 32Kwords 040000-04FFFF 020000-027FFF 0 0 0 1 0 0 X X X

SA12 64Kbytes 32Kwords 050000-05FFFF 028000-02FFFF 0 0 0 1 0 1 X X X

SA13 64Kbytes 32Kwords 060000-06FFFF 030000-037FFF 0 0 0 1 1 0 X X X

SA14 64Kbytes 32Kwords 070000-07FFFF 038000-03FFFF 0 0 0 1 1 1 X X X

SA15 64Kbytes 32Kwords 080000-08FFFF 040000-047FFF 0 0 1 0 0 0 X X X

SA16 64Kbytes 32Kwords 090000-09FFFF 048000-04FFFF 0 0 1 0 0 1 X X X

SA17 64Kbytes 32Kwords 0A0000-0AFFFF 050000-057FFF 0 0 1 0 1 0 X X X

SA18 64Kbytes 32Kwords 0B0000-0BFFFF 058000-05FFFF 0 0 1 0 1 1 X X X

SA19 64Kbytes 32Kwords 0C0000-0CFFFF 060000-067FFF 0 0 1 1 0 0 X X X

SA20 64Kbytes 32Kwords 0D0000-0DFFFF 068000-06FFFF 0 0 1 1 0 1 X X X

SA21 64Kbytes 32Kwords 0E0000-0EFFFF 070000-077FFF 0 0 1 1 1 0 X X X

SA22 64Kbytes 32Kwords 0F0000-0FFFFF 078000-07FFFF 0 0 1 1 1 1 X X X

SA23 64Kbytes 32Kwords 100000-10FFFF 080000-087FFF 0 1 0 0 0 0 X X X

SA24 64Kbytes 32Kwords 110000-11FFFF 088000-08FFFF 0 1 0 0 0 1 X X X

SA25 64Kbytes 32Kwords 120000-12FFFF 090000-097FFF 0 1 0 0 1 0 X X X

SA26 64Kbytes 32Kwords 130000-13FFFF 098000-09FFFF 0 1 0 0 1 1 X X X

SA27 64Kbytes 32Kwords 140000-14FFFF 0A0000-0A7FFF 0 1 0 1 0 0 X X X

SA28 64Kbytes 32Kwords 150000-15FFFF 0A8000-0AFFFF 0 1 0 1 0 1 X X X

SA29 64Kbytes 32Kwords 160000-16FFFF 0B0000-0B7FFF 0 1 0 1 1 0 X X X

SA30 64Kbytes 32Kwords 170000-17FFFF 0B8000-0BFFFF 0 1 0 1 1 1 X X X

SA31 64Kbytes 32Kwords 180000-18FFFF 0C0000-0C7FFF 0 1 1 0 0 0 X X X

SA32 64Kbytes 32Kwords 190000-19FFFF 0C8000-0CFFFF 0 1 1 0 0 1 X X X

SA33 64Kbytes 32Kwords 1A0000-1AFFFF 0D0000-0D7FFF 0 1 1 0 1 0 X X X

SA34 64Kbytes 32Kwords 1B0000-1BFFFF 0D8000-0DFFFF 0 1 1 0 1 1 X X X

SA35 64Kbytes 32Kwords 1C0000-1CFFFF 0E0000-0E7FFF 0 1 1 1 0 0 X X X

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

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SA36 64Kbytes 32Kwords 1D0000-1DFFFF 0E8000-0EFFFF 0 1 1 1 0 1 X X X

SA37 64Kbytes 32Kwords 1E0000-1EFFFF 0F0000-0F7FFF 0 1 1 1 1 0 X X X

SA38 64Kbytes 32Kwords 1F0000-1FFFFF 0F8000-0FFFFF 0 1 1 1 1 1 X X X

SA39 64Kbytes 32Kwords 200000-20FFFF 100000-107FFF 1 0 0 0 0 0 X X X

SA40 64Kbytes 32Kwords 210000-21FFFF 108000-10FFFF 1 0 0 0 0 1 X X X

SA41 64Kbytes 32Kwords 220000-22FFFF 110000-117FFF 1 0 0 0 1 0 X X X

SA42 64Kbytes 32Kwords 230000-23FFFF 118000-11FFFF 1 0 0 0 1 1 X X X

SA43 64Kbytes 32Kwords 240000-24FFFF 120000-127FFF 1 0 0 1 0 0 X X X

SA44 64Kbytes 32Kwords 250000-25FFFF 128000-12FFFF 1 0 0 1 0 1 X X X

SA45 64Kbytes 32Kwords 260000-26FFFF 130000-137FFF 1 0 0 1 1 0 X X X

SA46 64Kbytes 32Kwords 270000-27FFFF 138000-13FFFF 1 0 0 1 1 1 X X X

SA47 64Kbytes 32Kwords 280000-28FFFF 140000-147FFF 1 0 1 0 0 0 X X X

SA48 64Kbytes 32Kwords 290000-29FFFF 148000-14FFFF 1 0 1 0 0 1 X X X

SA49 64Kbytes 32Kwords 2A0000-2AFFFF 150000-157FFF 1 0 1 0 1 0 X X X

SA50 64Kbytes 32Kwords 2B0000-2BFFFF 158000-15FFFF 1 0 1 0 1 1 X X X

SA51 64Kbytes 32Kwords 2C0000-2CFFFF 160000-167FFF 1 0 1 1 0 0 X X X

SA52 64Kbytes 32Kwords 2D0000-2DFFFF 168000-16FFFF 1 0 1 1 0 1 X X X

SA53 64Kbytes 32Kwords 2E0000-2EFFFF 170000-177FFF 1 0 1 1 1 0 X X X

SA54 64Kbytes 32Kwords 2F0000-2FFFFF 178000-17FFFF 1 0 1 1 1 1 X X X

SA55 64Kbytes 32Kwords 300000-30FFFF 180000-187FFF 1 1 0 0 0 0 X X X

SA56 64Kbytes 32Kwords 310000-31FFFF 188000-18FFFF 1 1 0 0 0 1 X X X

SA57 64Kbytes 32Kwords 320000-32FFFF 190000-197FFF 1 1 0 0 1 0 X X X

SA58 64Kbytes 32Kwords 330000-33FFFF 198000-19FFFF 1 1 0 0 1 1 X X X

SA59 64Kbytes 32Kwords 340000-34FFFF 1A0000-1A7FFF 1 1 0 1 0 0 X X X

SA60 64Kbytes 32Kwords 350000-35FFFF 1A8000-1AFFFF 1 1 0 1 0 1 X X X

SA61 64Kbytes 32Kwords 360000-36FFFF 1B0000-1B7FFF 1 1 0 1 1 0 X X X

SA62 64Kbytes 32Kwords 370000-37FFFF 1B8000-1BFFFF 1 1 0 1 1 1 X X X

SA63 64Kbytes 32Kwords 380000-38FFFF 1C0000-1C7FFF 1 1 1 0 0 0 X X X

SA64 64Kbytes 32Kwords 390000-39FFFF 1C8000-1CFFFF 1 1 1 0 0 1 X X X

SA65 64Kbytes 32Kwords 3A0000-3AFFFF 1D0000-1D7FFF 1 1 1 0 1 0 X X X

SA66 64Kbytes 32Kwords 3B0000-3BFFFF 1D8000-1DFFFF 1 1 1 0 1 1 X X X

SA67 64Kbytes 32Kwords 3C0000-3CFFFF 1E0000-1E7FFF 1 1 1 1 0 0 X X X

SA68 64Kbytes 32Kwords 3D0000-3DFFFF 1E8000-1EFFFF 1 1 1 1 0 1 X X X

SA69 64Kbytes 32Kwords 3E0000-3EFFFF 1F0000-1F7FFF 1 1 1 1 1 0 X X X

SA70 64Kbytes 32Kwords 3F0000-3FFFFF 1F8000-1FFFFF 1 1 1 1 1 1 X X X

Note: Byte Mode: address range A20 : A-1, Word mode : address range A20 : A0

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 7/55

6. FUNCTIONAL BLOCK DIAGRAM

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 8/55

7. FUNCTIONAL DESCRIPTION

7.1 Device operation

This section describes the requirements and use of the

device bus operations, which are initiated through the

internal command register. The register is composed of

latches that store the command, address and data

information needed to execute the command. The contents

of the register serve as inputs to the internal state machine.

The state machine outputs dictate the function of the device.

The F49L320UA /F49L320BA features various bus

operations as Table 3.

Table 3. F49L320UA/F49L320BA Operation Modes Selection

DQ8-DQ15

Operation CE OE WE RESET WP /ACC Addresses

(Note 3) DQ0-DQ7

BYTE =VIH BYTE =VIL

Read L L H H L/H AIN D

OUT D

OUT

Write(Note1) L H L H (Note 4) AIN (Note 5) (Note 5)

Accelerated

Program L H L H VHH A

IN (Note 5) (Note 5)

DQ8-DQ14 =

High-X, DQ15 =

A-1

Standby VCC

±0.3 X X VCC

±0.3 H X High-Z High-Z High-Z

Output Disable L H H H L/H X High-Z High-Z High-Z

Reset X X X L L/H X High-Z High-Z High-Z

Sector Protect

(Note 3) L H L VID L/H

SA, A6 = L,

A1 = H, A0 =L (Note 5) X X

Sector Unprotect

(Note 3) L H L VID (Note 4)

SA, A6 = H,

A1 = H, A0 = L (Note 5) X X

Temporary Sector

Unprotect X X X VID (Note 4) AIN (Note 5) (Note 5) High-Z

Notes: 1. When the ACC pin is at VHH, the device enters the accelerated program mode. See

2. Addresses are A20:A0 in word mode (BYTE# = VIH), A20:A-1 in byte mode (BYTE# = VIL).

3. The sector protect and sector unprotect functions may also be implemented via programming equipment.

4. If WP#/ACC = VIL, the two outermost boot sectors remain protected. If WP#/ACC = VIH, the two outermost boot sector

protection depends on whether they were last protected or unprotected. If WP#/ACC = VHH, all sectors are

unprotected.

5. DIN or DOUT as required by command sequence, data polling, or sector protection algorithm.

Write Protect(WP#)

The write protect function provides a hardware method of protecting certain boot sectors without using VID. This function is one of two

provided by WP#/ACC pin. If the system asserts VIL On the WP#/ACC pin, the device disables program and erase functions in the two

outermost 8-Kbyte boot sectors independently of whether those sectors were protected or unprotected using the method. The two

outermost 8-Kbyte boot sectors are the two sectors containing the lowest addresses in a bottom-boot configured device, or the two

sectors containing the highest addresses in a top-boot configured device.

If the system asserted VIH on the WP#/ACC pin, the device reverts to whether the two outermost 8-Kbyte boot sectors were last set to

be protected or unprotected. That is, sector protection or unprotection for these two sectors depends on whether they were last

protected or unprotected using the method.

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 9/55

Table 4. F49L320UA/F49L320BA Auto-Select Mode (High Voltage Method)

Description Mode CE# OE# WE#

A20

A12

A11

A10

A3 A2 A1 A0

DQ8

DQ15

DQ7

DQ0

LL 8Ch

L H 7Fh

H L 7Fh

Manufacturer ID:

ESMT L L H X X VID XLX

LL X

7Fh

Word L L H 22h F6h

Device ID:

F49L320UA Byte L L H

X X VID XLXLLLH

X F6h

Word L L H 22h F9h

Device ID:

F49L320BA Byte L L H

X X VID XLXLLLH

X F9h

X 01h

(protected)

Sector Protection

Verification L L H SA X VID XLXLLHL

X 00h

(unprotected)

X 8D (factory

locked)

Sector Silicon Sector

Indicator Bit (DQ7)

F49L320UA

L L H X X VID XLXLLHH

X 0D (not factory

locked)

X 9D (factory

locked)

Sector Silicon Sector

Indicator Bit (DQ7)

F49L320BA

L L H X X VID XLXLLHH

X 1D (not factory

locked)

Notes :

L = Logic Low = VIL, H = Logic High = VIH, SA = Sector Address, X = Don’t care.

1.Manufacturer and device codes may also be accessed via the software command sequence in Table 5.

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F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 10/55

Reset Mode :

Hardware Reset

When the ESETR pin is driven low for at least a period of tRP,

the device immediately terminates any operation in progress,

tri-states all output pins, and ignores all read/write commands

for the duration of the ESETR pulse. The device also resets

the internal state machine to reading array data. The operation

that was interrupted should be reinitiated later once the device

is ready to accept another command sequence, to ensure the

data integrity.

The current is reduced for the duration of the ESETR pulse.

When ESETR is held at VSS ±0. 3V, the device draws CMOS

standby current (ICC4). If ESETR is held at VIL but not within

VSS±0. 3V, the standby current will be greater.

The ESETR pin may be tied to system reset circuitry. A system

reset would thus reset the Flash memory, enabling the system

to read the boot-up firm-ware from the Flash memory.

If ESETR is asserted during a program or erase embedded

algorithm operation, the RY/BY pin remains a "0" (busy) until

the internal reset operation is complete, which requires a time of

tREADY (during Embedded Algorithms). The system can thus

monitor RY/BY to determine whether the reset operation is

complete.

If ESETR is asserted when a program or erase operation is

not executing, i.e. the RY/BY is “1”, the reset operation is

completed within a time of tREADY (not during Embedded

Algorithms). The system can read data after tRH when the

ESETR pin returns to VIH. Refer to the AC Characteristics

tables 17 for Hardware Reset section & Figure 23 for the timing

diagram.

Read Mode

To read array data from the outputs, the system must drive the

CE and OE pins to VIL. CE is the power control and selects

the device. O

is the output control and gates array data to the

output pins. WE should remain at VIH. The internal state

machine is set for reading array data upon device power-up, or

after a hardware reset. This ensures that no spurious alteration

of the memory content occurs during the power transition.

No command is necessary in this mode to obtain array data.

Standard microprocessor’s read cycles that assert valid

addresses on the device address inputs produce valid data on

the device data outputs. The device remains enabled for read

access until the command register contents are altered.

See “Read Command” section for more information. Refer to the

AC Read Operations table 14 for timing specifications and to

Figure 5 for the timing diagram. ICC1 in the DC Characteristics

table represents the active current specification for reading array

data.

Write Mode

To write a command or command sequence (which includes

programming data to the device and erasing sectors of memory),

the system must drive WE and CE to VIL, and O

to VIH. The

“Program Command” section has details on programming data to

the device using standard command sequences.

An erase operation can erase one sector, multiple sectors, or the

entire device. Tables 1 and 2 indicate the address space that each

sector occupies. A “sector address” consists of the address bits

required to uniquely select a sector. The “Software Command

Definitions” section has details on erasing a sector or t he entire

chip, or suspending/resuming the erase operation.

When the system writes the auto-select command sequence, the

device enters the auto-select mode. The system can then read

auto-select codes from the internal register (which is separate

from the memory array) on DQ7–DQ0. Standard read cycle

timings apply in this mode. Refer to the Auto-select Mode and

Auto-select Command sections for more information. ICC2 in the

DC Characteristics table represents the active current

specification for the write mode. The “AC Characteristics”

section contains timing specification tables and timing diagrams

for write operations.

Automatic Sleep Mode

The automatic sleep mode minimizes Flash device energy

consumption. The device automatically enables this mode when

addresses remain unchanged for over 250ns. The automatic

sleep mode is independent of the CE , WE , and O

control

signals. Standard address access timings provide new data when

addresses are changed. While in sleep mode, output data is

latched and always available to the system. ICC4 in the DC

Characteristics table represents the automatic sleep mode current

specification.

Word / Byte Mode

This pin controls the I/O configuration of device. When BYTE =

VIH or Vcc ± 0. 3V. The I/O configuration is x16 and t he pin of

D15/A-1 is bi-direction Data I/O. However, BYTE = VIL or VSS ±

0.3V. The I/O configuration would be x8 and The pin of

DQ15/A-1 only address input pin. You must define the function of

this pin before enable this device.

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Temporary Sector Unprotect Mode

This feature allows temporary unprotection of previously

protected sector to change data in-system. This mode is

activated by setting the ESETR pin to VID(10V-10.5V). During

this mode, all formerly protected sectors are un-protected and

can be programmed or erased by selecting the sector addresses.

Once VID is removed from the ESETR pin, all the previously

protected sectors are protected again.

Notes:

1. All protected sectors unprotected.

2. All previously protected sectors are protected once again.

Start

RESET = VID (Note 1)

Perform Erase or

Program Operation

RESET = VIH

Temporary Sector

Unprotect Completed

(Note 2)

Operation Completed

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Output Disable Mode

With the O

is at a logic high level (VIH), outputs from the

devices are disabled. This will cause the output pins in a high

impedance state

Standby Mode

When CE and ESETR are both held at VCC ± 0.3V, the

device enter CMOS Standby mode. If CE and ESETR are

held at VIH, but not within the range of VCC ± 03V, t he

device will still be in the standby mode, but the standby

current will be larger.

If the device is deselected during auto algorithm of erasure or

programming, the device draws active current ICC2 until the

operation is completed. ICC3 in the DC Characteristics table

represents the standby current specification.

The device requires standard access time (tCE) for read

access from either of these standby modes, before it is ready

to read data.

Sector Protect / Un-protect Mode

The hardware sector protect feature disables both program

and erase operations in any sector. The hardware sector

unprotect feature re-enables both the program and erase

operations in previously protected sectors. Sector

protect/unprotect can be implemented via two methods.

The primary method requires VID on the ESETR pin only,

and can be implemented either in-system or via

programming equipment.

Figure 16 shows the algorithms and Figure 15 shows the

timing diagram. This method uses standard microprocessor

bus cycle timing. For sector unprotect, all unprotected

sectors must first be protected prior to the first sector

unprotect write cycle.

The alternate method intended only for programming

equipment requires VID on address pin A9, O

, and

ESETR .

Auto-select Mode

The auto-select mode provides manufacturer and device

identification and sector protection verification, through

outputs on DQ7–DQ0. This mode is primarily intended for

programming equipment to automatically match a device to

be programmed with its corresponding programming

algorithm. However, the auto-select codes can also be

accessed in-system through the command register.

When using programming equipment, this mode requires

VID (10 V to 10.5 V) on address pin A9. While address pins

A3, A2, A1, and A0 must be as shown in Table 4.

To verify sector protection, all necessary pins have to be set

as required in Table 4, the programming equipment may

then read the corresponding identifier code on DQ7-DQ0.

To access the auto-select codes in-system, the host system

can issue the auto-select command via the command

VID. See “Software Command Definitions” for details on

using the auto-select mode.

7.2 Software Command Definitions

Writing specific address and data commands or

sequences into the command register initiates the

device operations. Table 5 defines the valid register

command sequences. Writing incorrect address and

data values or writing them in the improper sequence

resets the device to reading array data.

All addresses are latched on the falling edge of WE or

CE, whichever happens later. All data is latched on the

rising edge of WE or CE , whichever happens first.

Refer to the corresponding timing diagrams in the AC

Characteristics section.

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Table 5. F49L320UA/F49L320BA Software Command Definitions

Bus Cycle Note1~4

1st 2nd 3rd 4th 5th 6th

Command Sequence Cycles

Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data

Read Note 5 1 RA RD

Reset Note 6 1 XXX F0

X00 XX8C

X04 XX7F

X08 XX7F

Word 555 2AA 555

X0C XX7F

X00 8C

X04 7F

X08 7F

Manufacturer ID

Byte

AAA

555

AAA

X0C 7F

Word 555 2AA 555 X01 22F6 Device ID,

F49L320UA Byte 4 AAA AA 555 55 AAA 90 X02 F6

Word 555 2AA 555 X01 22F9 Device ID,

F49L320BA Byte 4 AAA AA 555 55 AAA 90 X02 F9

Word 555 2AA 555 X03Secured Silicon Sector

Factory Protect

F49L320UA Note 8 Byte 4 AAA AA 555 55 AAA 90 X06 8D/0D

Word 555 2AA 555 X03Secured Silicon Sector

Factory Protect

F49L320BA Note 8 Byte 4 AAA AA 555 55 AAA 90 X06 9D/1D

XX00

Word 555 2AA 555 (SA)

X02 XX01

Autoselect Note 7

Sector Protect Verify

Note 9

Byte

AAA

555

AAA

(SA)

X04 01

Word 555 2AA 555

Enter Secured Silicon

Sector Region Byte 3 AAA AA 555 55 AAA 88

Word 555 2AA 555

Exit Secured Silicon Sector

Region Byte 4 AAA AA 555 55 AAA 90 XXX 00

Word 55

CFI Query Note 10 Byte 1 AA 98

Word 555 2AA 555

Program Byte 4 AAA AA 555 55 AAA A0 PA PD

Word 555 2AA 555 555 2AA 555

Chip Erase Byte 6 AAA AA 555 55 AAA 80 AAA AA 555 55 AAA 10

Word 555 2AA 555 555 2AA

Sector Erase Byte 6 AAA AA 555 55 AAA 80 AAA AA 555 55 SA 30

Erase Suspend Note 11 1 XXX B0

Erase Resume Note 12 1 XXX 30

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Legend:

X = Don’t care

RA = Address of the memory location to be read.

RD = Data read from location RA during read operation.

PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the WE# or CE# pulse, whichever

happens later.

PD = Data to be programmed at location PA. Data latches on the rising edge of WE# or CE# pulse, whichever happens first. SA =

Address of the sector to be verified (in autoselect mode) or erased. Address bits A20–A12 uniquely select any sector.

Notes:

1.All values are in hexadecimal.

2.Except for the read cycle and the fourth cycle of the autoselect command sequence, all bus cycles are write cycles.

3.Data bits DQ15–DQ8 are don’t cares for unlock and command cycles.

4.Address bits A20–A11 are don’t cares for unlock and command cycles, unless SA or PA required.

5.No unlock or command cycles required when reading array data.

6. The Reset command is required to return to reading array data when device is in the autoselect mode, or if DQ5 goes high

(while the device is providing status data).

7.The fourth cycle of the autoselect command sequence is a read cycle.

8. For word mode data is 8Dh for factory locked and 0Dh for not factory locked. For byte mode data is 9Dh for factory locked and

1Dh for not factory locked.

9.The data is 00h for an unprotected sector and 01h for a protected sector. See “ Autoselect Command Sequence” for more

information.

10.Command is valid when device is ready to read array data or when device is in autoselect mode.

11.The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode.

The Erase Suspend command is valid only during a sector erase operation.

12.The Erase Resume command is valid only during the Erase Suspend mode.

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Reset Command

Writing the reset command to the device resets the device

to reading array data. Address bits are all don’t cares for

this command.

The reset command may be written between the sequence

cycles in an erase command sequence before erasing

begins. This resets the device to reading array data. Once

erasure begins, however, the device ignores reset

commands until the operation is complete.

The reset command may be written between the sequence

cycles in a program command sequence before

programming begins. This resets the device to reading

array data (also applies to programming in Erase Suspend

mode). Once programming begins, however, the device

ignores reset commands until the operation is complete.

The reset command may be written between the sequence

cycles in an auto-select command sequence. Once in the

auto-select mode, the reset command must be written to

return to reading array data (also applies to auto-select

during Erase Suspend).

If DQ5 goes high (see “DQ5: Exceeded Timing Limits”

section) during a program or erase operation, writing the

reset command returns the device to reading array data

(also applies during Erase Suspend).

Read Command

The device is automatically set to reading array data after

device power-up. No commands are required to retrieve

data. The device is also ready to read array data after

completing an Embedded Program or Embedded Erase

algorithm.

When the device accepts an Erase Suspend command,

the device enters the Erase Suspend mode. The system

can read array data using the standard read timings,

except that if it reads an address within erase-suspended

sectors, the device outputs status data. After completing a

programming operation in the Erase Suspend mode, the

system may once again read array data with the same

exception. See “Erase Suspend/Erase Resume

Commands” for more information on this mode.

The system must issue the reset command to re-enable

the device for reading array data if DQ5 goes high, or while

in the auto-select mode. See the “Reset Command”

section. See also the “Read Mode” in the “Device

Operations section for more information. Refer to Figure 5

for the timing diagram.

Program Command

The program command sequence programs one byte into the

device. Programming is a four-bus-cycle operation. The

program command sequence is initiated by writing two unlock

write cycles, followed by the program set-up command. The

program address and data are written next, which in turn

initiate the Embedded Program algorithm. The system is not

required to provide further controls or timings. The device

automatically provides internally generated program pulses

and verifies the programmed cell margin.

When the Embedded Program algorithm is complete, the

device then returns to reading array data and addresses are

no longer latched. The system can determine the status of the

program operation by using DQ7, DQ6, or RY/BY . See “Write

Operation Status” section for more information on these status

bits.

Any commands written to the device during the Embedded

Program Algorithm are ignored. Note that a hardware reset

immediately terminates the programming operation. The

Program command sequence should be reinitiated once the

device has reset to reading array data, to ensure data integrity.

Programming is allowed in any sequence and across sector

boundaries. A bit cannot be programmed from a “0” back to a

“1”. Attempting to do so may halt the operation and set DQ5 to

“1”, or cause the Data Polling algorithm to indicate the

operation was successful. However, a succeeding read will

show that the data is still “0”. Only erase operations can

convert a “0” to a ”1”.

Chip Erase Command

Chip erase is a six-bus cycle operation. The chip erase

command sequence is initiated by writing two unlock cycles,

followed by a set-up command. Two additional unlock write

cycles are then followed by the chip erase command, which in

turn invokes the Embedded Erase algorithm.

The device does not require the system to preprogram prior to

erase. The Embedded Erase algorithm automatically

preprograms and verifies the entire memory for an all zero data

pattern prior to electrical erase.

Any commands written to the chip during the Embedded Erase

algorithm are ignored. Note that a hardware reset during the

chip erase operation immediately terminates the operation. The

Chip Erase command sequence should be reinitiated once the

device has returned to reading array data, to ensure the data

integrity.

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The system can determine the status of the erase operation

by using DQ7, DQ6, DQ2, or RY/BY . See “Write Operation

Status” section for more Information on these status bits.

When the Embedded Erase algorithm is complete, the

device returns to reading array data and addresses are no

longer latched. See the Erase/Program Operations tables

in “AC Characteristics” for parameters.

Sector Erase Command

Sector erase is a six-bus cycle operation. The sector erase

command sequence is initiated by writing two unlock

cycles, followed by a set-up command. Two additional

unlock write cycles are then followed by the address of the

sector to be erased, and the sector erase command.

The device does not require the system to preprogram the

memory prior to erase. The Embedded Erase algorithm

automatically programs and verifies the sector for an all

zero data pattern prior to electrical erase. The system is

not required to provide any controls or timings during these

operations.

After the command sequence is written, a sector erase

time-out of 50µ s begins. Driving the time-out period,

additional sector addresses and sector erase commands

may be written. Loading the sector erase buffer may be

done in any sequence, and the number of sectors may be

from one sector to all sectors. The time between these

additional cycles must be less than 50 　s, otherwise the

last address and command might not be accepted, and

erasure may begin.

It is recommended that processor interrupts be disabled

during this time to ensure all commands are accepted. The

interrupts can be re-enabled after the last Sector Erase

command is written. If the time between additional sector

erase commands can be assumed to be less than 50 µ s,

the system need not monitor DQ3.

Any command other than Sector Erase or Erase Suspend

during the time-out period resets the device to reading

array data. The system must rewrite the command

sequence and any additional sector addresses and

commands.

The system can monitor DQ3 to determine if the sector

erase timer has timed out. (See the “DQ3: Sector Erase

Timer” section.) The time-out begins from the rising edge

of the final WE pulse in the command sequence.

Once the sector erase operation has begun, only the

Erase Suspend command is valid. All other commands

are ignored. Note that a hardware reset during the sector

erase operation immediately terminates the operation.

The Sector Erase command sequence should be

reinitiated once the device has returned to reading array

data, to ensure the data integrity.

When the Embedded Erase algorithm is complete, the

device returns to reading array data and addresses are no

longer latched. The system can determine the status of

the erase operation by using DQ7, DQ6, DQ2, or RY/BY .

(Refer to “Write Operation Status” section for more

information on these status bits.)

Refer to the Erase/Program Operations tables in the “AC

Characteristics” section for parameters.

Sector Erase Suspend/Resume Command

The Erase Suspend command allows the system to

interrupt a sector erase operation and then read data

from, or program data to, any sector not selected for

erasure (The device “ erase suspends” all sect or

selected for erasure.). This command is valid only during

the sector erase operation, including the 50 µs time-out

period during the sector erase command sequence. The

Erase Suspend command is ignored if written during the

chip erase operation or Embedded Program algorithm.

Addresses are “don’t -cares” when writing the Erase

Suspend command as shown in Table 5.

When the Erase Suspend command is written during a

sector erase operation, the device requires a maximum of

20µs to suspend the erase operation. However, when the

Erase Suspend command is written during the sector

erase time-out, the device immediately terminates the

time-out period and suspends the erase operation.

Reading at any address within erase-suspended sectors

produces status data on DQ7–DQ0. The system can use

DQ7, or DQ6 and DQ2 together, to determine if a sector is

actively erasing or is erase-suspended. See “Write

Operation Status” section for more information on these

status bits.

After an erase-suspended program operation is complete,

the system can once again read array data within

non-suspended sectors. The system can determine the

status of the program operation using the DQ7 or DQ6

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status bits, just as in the standard program operation. See

“Write Operation Status” f or more information.

The system may also write the auto-select command

sequence when the device is in the Erase Suspend mode.

The device allows reading auto-select codes even at

addresses within erasing sectors, since the codes are not

stored in the memory array. When the device exits the

auto-select mode, the device reverts to the Erase Suspend

mode, and is ready for another valid operation.

After an erase-suspended program operation is complete,

the system can once again read array data within

non-suspended sectors. The system can determine the

status of the program operation using the DQ7 or DQ6

status bits, just as in the standard program operation. See

“Write Operation Status” f or more information.

The system may also write the auto-select command

sequence when the device is in the Erase Suspend mode.

The device allows reading auto-select codes even at

addresses within erasing sectors, since the codes are not

stored in the memory array. When the device exits the

auto-select mode, the device reverts to the Erase Suspend

mode, and is ready for another valid operation.

The system must write the Erase Resume command

(address bits are “don’t care” as shown in Table 5) to exit

the erase suspend mode and continue the sector erase

operation. Further writes of the Resume command are

ignored. Another Erase Suspend command can be written

after the device has resumed erasing.

Auto-select Command

The auto-select command sequence allows the host

system to access the manufacturer and devices codes, and

determine whether or not a sector is protected. Table 6

shows the address and data requirements. This method is

an alternative to that shown in Table 4, which is intended

for PROM programmers and requires VID on address bit

A9.

The auto-select command sequence is initiated by writing

two unlock cycles, followed by the auto-select command.

The device then enters the auto-select mode, and the

system may read at any address any number of times,

without initiating another command sequence. The read

cycles at address 04H, 08H, 0CH, and 00H retrieves the

ESMT manufacturer ID. A read cycle at address 01H

retrieves the device ID. A read cycle containing a sector

address(SA) and the address 02H returns 01H if that

sector is protected, or 00H if it is unprotected. Refer to

Tables 1 and 2 for valid sector addresses.

The system must write the reset command to exit the

auto-select mode and return to reading array data.

7.3 Write Operation Status

The device provides several bits to determine the

status of a write operation: RY/BY , DQ7, DQ6, DQ5,

DQ3, DQ2, and. Table 7 and the following

subsections describe the functions of these bits.

RY/ BY , DQ7, and DQ6 each offer a method for

determining whether a program or erase operation is

complete or in progress.

Table 7. Write Operation Status

Status DQ7

(Note1) DQ6 DQ5

(Note2) DQ3 DQ2 RY/ BY

Embedded Program Algorithm 7DQ Toggle 0 N/A No

Toggle 0

Embedded Erase Algorithm 0 Toggle 0 1 Toggle 0

Reading Erase Suspended

Sector 1 No

Toggle 0 N/A Toggle 1

Reading Non-Erase

Suspended Sector Data Data Data Data Data 1

In Progress

Erase Suspended Mode

Erase Suspend Program 7DQ Toggle 0 N/A N/A 0

Embedded Program Algorithm 7DQ Toggle 1 N/A No

Toggle 0

Embedded Erase Algorithm 0 Toggle 1 1 Toggle 0

Exceeded

Time Limits

Erase Suspend Program 7DQ Toggle 1 N/A N/A 0

Notes:

1. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further details.

2. DQ5 switches to ‘1’ when an Embedded Program or Embedded Erase operation has exceeded the maximum timing limits.

See “DQ5: Exceeded Timing Limits” for more information.

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RY/ BY :

Ready/Busy

The RY/BY is a dedicated, open-drain output pin that

indicates whether an Embedded Algorithm is in

progress or complete. The RY/BY status is valid after

the rising edge of the final WE pulse in the command

sequence. Since RY/ BY is an open-drain output,

several RY/BY pins can be tied together in parallel with

a pull-up resistor to VCC.

If the output is low (Busy), the device is actively erasing

or programming. (This includes programming in the

Erase Suspend mode.) If the output is high (Ready), the

device is ready to read array data (including during the

Erase Suspend mode), or is in the standby mode. Table

7 shows the outputs for RY/BY .

DQ7: Data Polling

The DQ7 indicates to the host system whether an

Embedded Algorithm is in progress or completed, or

whether the device is in Erase Suspend mode. The

Data Polling is valid after the rising edge of the final

WE pulse in the program or erase command

sequence.

During the Embedded Program algorithm, the device

outputs on DQ7 the complement of the datum

programmed to DQ7. This DQ7 status also applies to

programming during Erase Suspend. When the

Embedded Program algorithm is complete, the device

outputs the true data on DQ7. The system must provide

the program address to read valid status information on

DQ7. If a program address falls within a protected

sector, Data Polling on DQ7 is active for approximately

1 µs, then the device returns to reading array data.

During the Embedded Erase algorithm, Data Polling

produces a “0” on DQ7. When the Embedded Erase

algorithm is complete, or if the device enters the Erase

Suspend mode, Data Polling produces a “1” on DQ7.

The system must provide an address within any of the

sectors selected for erasure to read valid status

information on DQ7.

After an erase command sequence is written, if all

sectors selected for erasing are protected, Data Polling

on DQ7 is active for approximately 100 µs, then the

device returns to reading array data. If not all selected

sectors are protected, the Embedded Erase algorithm

erases the unprotected sectors, and ignores the

selected sectors that are protected.

When the system detects DQ7 has changed from the

complement to true data, it can read valid data at DQ7~

DQ0 on the following read cycles. This is because DQ7

may change asynchronously with DQ0–DQ6 while

Output Enable (O

) is asserted low. Refer to Figure 21,

Data Polling Timings (During Embedded Algorithms),

Figure 19 shows the Data Polling algorithm.

DQ6:Toggle BIT I

Toggle Bit I on DQ6 indicates whether an Embedded

Program or Erase algorithm is in progress or complete,

or whether the device has entered the Erase Suspend

mode. Toggle Bit I may be read at any address, and is

valid after the rising edge of the final WE pulse in the

command sequence (prior to the program or erase

operation), and during the sector erase time-out.

During an Embedded Program or Erase algorithm

operation, successive read cycles to any address

cause DQ6 to toggle. The system may use either O

or CE to control the read cycles. When the operation

is complete, DQ6 stops toggling.

When an erase command sequence is written, if all

sectors selected for erasing are protected, DQ6 toggles

for approximately 100 µs, then returns to reading array

data. If not all selected sectors are protected, the

Embedded Erase algorithm erases the unprotected

sectors, and ignores the selected sectors that are

protected.

The system can use DQ6 and DQ2 together to

determine whether a sector is actively erasing or is

erase-suspended. When the device is actively erasing

(i.e. the Embedded Erase algorithm is in progress),

DQ6 toggles. When the device enters the Erase

Suspend mode, DQ6 stops toggling. However, the

system must also use DQ2 to determine which sectors

are erasing or erase-suspended. Alternatively, the

system can use DQ7.

If a program address falls within a protected sector,

DQ6 toggles for approximately 2µs after the program

command sequence is written, then returns to reading

array data.

DQ6 also toggles during the erase-suspend-program

mode, and stops toggling once the Embedded Program

algorithm is complete. Table 7 shows the outputs for

Toggle Bit I on DQ6. Figure 20 shows the toggle bit

algorithm. Figure 22 shows the toggle bit timing

diagrams. Figure 25 shows the differences between

DQ2 and DQ6 in graphical form. Refer to the

subsection on DQ2: Toggle Bit II.

DQ2: Toggle Bit II

The “Toggle Bit II” on DQ2, when used with DQ6,

indicates whether a particular sector is actively erasing

(that is, the Embedded Erase algorithm is in progress),

or whether that sector is erase-suspended. Toggle Bit II

is valid after the rising edge of the final or CE ,

whichever happens first, in the command sequence.

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DQ2 toggles when the system reads at addresses within

those sectors that have been selected for erasure. (The

system may use either O

or CE to control the read

cycles.) But DQ2 cannot distinguish whether the sector is

actively erasing or is erase-suspended.

DQ6, by comparison, indicates whether the device is

actively erasing, or whether is in erase-suspended, but

cannot distinguish which sectors are selected for erasure.

Thus, both status bits are required for sector and mode

information. Refer to Table 7 to compare outputs for DQ2

and DQ6.

Figure 20 shows the toggle bit algorithm in flowchart form.

See also the DQ6: Toggle Bit I subsection. Figure 22

shows the toggle bit timing diagram. Figure 25 shows the

differences between DQ2 and DQ6 in graphical form.

Reading Toggle Bits DQ6/ DQ2

Refer to Figure 20 for the following discussion. Whenever

the system initially begins reading toggle bit status, it must

read DQ7–DQ0 at least twice in a row to determine

whether a toggle bit is toggling. Typically, the system would

note and store the value of the toggle bit after the first read.

After the second read, the system would compare the new

value of the toggle bit with the first. If the toggle bit is not

toggling, the device has completed the program or erase

operation. The system can read array data on DQ7–DQ0

on the following read cycle.

However, if after the initial two read cycles, the system

determines that the toggle bit is still toggling, the system

should note whether the value of DQ5 is high (see the

section on DQ5). If it is, the system should then determine

again whether the toggle bit is toggling, since the toggle bit

may have stopped toggling just as DQ5 went high. If the

toggle bit is no longer toggling, the device has successfully

completed the program or erase operation. If it is still

toggling, the device did not completed the operation

successfully, and the system must write the reset

command to return to reading array data.

The remaining scenario is that the system initially

determines that the toggle bit is toggling and DQ5 has not

gone high. The system may continue to monitor the toggle

bit and DQ5 through successive read cycles, determining

the status as described earlier. Alternatively, it may choose

to perform other system tasks. In this case, the system

must start at the beginning of the algorithm when it returns

to determine the status of the operation.

DQ5: Exceeded Timing Limits

DQ5 indicates whether the program or erase time has

exceeded the specified limits(internal pulse count). Under

these conditions DQ5 will produce a "1". This time-out

condition indicates that the program or erase cycle was not

successfully completed. Data Polling and Toggle Bit are the

only operating functions of the device under this condition.

If this time-out condition occurs during sector erase

operation, it specifies that a particular sector is bad and it

may not be reused. However, other sectors are still

functional and may be used for the program or erase

operation. The device must be reset to use other sectors.

Write the Reset command sequence to the device, and

then execute program or erase command sequence. This

allows the system to continue to use the other active

sectors in the device.

If this time-out condition occurs during the chip erase

operation, it specifies that the entire chip is bad or

combination of sectors are bad.

If this time-out condition occurs during the programming

operation, it specifies that the sector containing that byte is

bad and this sector may not be reused, however other

sectors are still functional and can be reused.

The time-out condition will not appear if a user tries to

program a non blank location without erasing. Please note

that this is not a device failure condition since the device

was incorrectly used.

DQ3:Sector Erase Timer

After writing a sector erase command sequence, the

system may read DQ3 to determine whether or not an

erase operation has begun. (The sector erase timer does

not apply to the chip erase command.) If additional sectors

are selected for erasure, the entire timeout also applies

after each additional sector erase command.

When the time-out is complete, DQ3 switches from “ 0” to

“ 1.” If the time between additional sector erase commands

from the system can be assumed to be less than 50 µ s, the

system need not monitor DQ3.

When the sector erase command sequence is written, the

system should read the status on DQ7 (Data Polling) or

DQ6 (Toggle Bit I) to ensure the device has accepted the

command sequence, and then read DQ3. If DQ3 is “ 1”, the

internally controlled erase cycle has begun; all further

commands (except Erase Suspend) are ignored until the

erase operation is complete.

If DQ3 is “ 0”, the device will accept additional sector

erase commands. To ensure the command has been

accepted, the system software should check the status of

DQ3 prior to and following each subsequent sector erase

command. If DQ3 is high on the second status check, the

last command might not have been accepted. Table 7

shows the outputs for DQ3.

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 20/55

Customer Lockable : Secured Silicon Sector

NOT Programmed or Protected at the Factory

The customer lockable version allows the Secured

Silicon Sector to be programmed once, and then

permanently locked after it ships. Note that the

accelerated programming (ACC) is not available

when programming the Secured Silicon Sector.

The Secured Silicon Sector area can be protected

using the following procedures:

 Write the three-cycle Enter Secured silicon

Region command sequence, and then follow the

in-system sector protect algorithm as shown in

Figure 16. of page41, except that RESET# may

be either VIH or VID. This allows in system protection

of the Secured Silicon Sector without raising any

device pin to a high voltage. Note that this

method is only applicable to the Secured silicon

Sector.

 To verify the protect/unprotect status of the

Secured Silicon Sector, follow the algorithm

shown in below table.

Once the Secured Silicon Sector protection must

be used with caution since, once protected, there

is no procedure available for unprotecting the

Secured silicon Sector area, and none of the bits

in the Secured Silicon Sector memory space can

be modified in any way.

Factory Locked : Secured Silicon Sector

Programmed and Protected at the Factory

The Secured Silicon Sector feature provides a

256 –byte Flash memory region that enables

permanent part identification through an Electronic

Serial Number (ESN). The Secured Silicon Sector

uses a Secured Silicon Sector Indicator Bit (DQ7) to

indicate whether or not the Secured Silicon Sector is

locked when shipped from the factory. Factory

Locked version the Bit( DQ7) set to 1, Customer

Lockable version the Bit (DQ7) set to 0.

In a factory locked device, the Secured Silicon Sector

cannot be modified in any way. The device is

available pre-programmed with one of the following:

1. A random, secure ESN only.

2. Customer code through the Express Flash

service.

3. Both a random, secure ESN and customer code

through the Express Flash device.

In device that have an ESN, a Bottom Boot device

has the 16-byte (8-word) ESN in sector 0 at address

00000H-0000FH in byte mode(or 00000H~00007H in

word mode).In the Top Boot device, the ECN is in

sector 70 at addresses 3FFF00h-3FFF0Fh in byte

mode ( or 1FFF80h-1FFF87h in word mode). In the

uniform device, the ESN is in sector 63 at addresses

3FFF00h-3FFF0Fh in byte mode (or 1FFF80h-

1FFF87h in word mode).

Customers may opt to have their code programmed

by ESMT through the Express-Flash service. ESMT

programs the customer’s code, with or without the

random ESN. The devices are then shipped from the

ESMT factory with the Secured Silicon Sector locked.

Note:

1. After entering Secured Silicon Sector mode, user

can program Secured Silicon Sector (means to

write ESN code) and do Secured Silicon Sector

protection once when device is customer

lockable version.

2. Enter Secured Silicon Sector mode, the under

functions are not allowed except for CFI.

a. Sector Erase/Erase Suspend/Resume.

b. Chip Erase.

3. Secured Silicon Sector mode doesn’t have

“Erase” and “Unprotect” function.

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 21/55

Word mode Secured Silicon Sector Addresses

Sector Address

A20~12

Sector Size

( bytes/words)

( x8 )

Address Range

( x16 )

Address Range

111111111 256/128 3FFF00h-3FFFFFh 1FFF80h-1FFFFFh

Byte mode Secured Silicon Sector Addresses

Sector Address

A20~12

Sector Size

( bytes/words)

( x8 )

Address Range

( x16 )

Address Range

000000000 256/128 000000h-0000FFh 000000h-00007Fh

7.4 More Device Operations

Hardware Data Protection

The command sequence requirement of unlock cycles for

programming or erasing provides data protection against

inadvertent writes. In addition, the following hardware data

protection measures prevent accidental erasure or

programming, which might otherwise be caused by

spurious system level signals during VCC power-up and

power-down transitions, or from system noise.

Low VCC Write Inhibit

When VCC is less than VLKO, the device does not accept

any write cycles. This protects data during VCC power-up

and power-down. The command register and all internal

program/erase circuits are disabled, and the device resets.

Subsequent writes are ignored until VCC is greater than

VLKO. The system must provide the proper signals to the

control pins to prevent unintentional writes when VCC is

greater than VLKO.

Write Pulse "Glitch" Protection

Noise pulses of less than 5 ns (typical) on CE or WE

do not initiate a write cycle.

Logical Inhibit

Write cycles are inhibited by holding any one of O

= VIL,

CE = VIH or WE = VIH. To initiate a write cycle, CE

and WE must be a logical zero while O

is a logical

one.

Power Supply Decoupling

In order to reduce power switching effect, each device

should have a 0.1uF ceramic capacitor connected

between its VCC and GND.

Power-Up Sequence

The device powers up in the Read Mode. In addition, the

memory contents may only be altered after successful

completion of the predefined command sequences.

Power-Up Write Inhibit

If WE = CE = VIL and O

= VIH during power up, the

device does not accept commands on the rising edge of

WE . The internal state machine is automatically reset to

reading array data on power-up.

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 22/55

COMMON FLASH MEMORY INTERFACE (CFI)

The Common Flash Interface (CFI) specification outlines device and host system software interrogation handshake, which allows

specific vendor-specified software algorithms to be used for entire families of devices. Software support can then be device-independent,

JEDEC ID-independent, and forward- and backward- compatible for the specified flash device families. Flash vendors can standardize

their existing interfaces for long-term compatibility.

This device enters the CFI Query mode when the system writes the CFI Query command, 98h, to address 55h in word mode (or address

AAh in byte mode), any time the device is ready to array data. The system can read CFI information at the address given in Tables 8-10

in word mode, the upper address bits (A7-MSB) must be all zeros. To terminate reading CFI data, the system must write the reset

command.

The system can also write the CFI query command when the device is in the autoselect mode. The device enters the CFI query mode,

and the system can read CFI data at the addresses given in Tables 8-10. The system must write the reset command to return the device

to the autoselect mode.

Table 8 CFI Query Identification String

Addresses

(Word Mode)

Address

(Byte Mode) Data Description

10h

11h

12h

20h

22h

24h

0051h

0052h

0059h

Query Unique ASCII string “QRY”

13h

14h

26h

28h

0002h

0000h Primary OEM Command Set

15h

16h

2Ah

2Ch

0040h

0000h Address for Primary Extended Table

17h

18h

2Eh

30h

0000h

0000h Alternate OEM Command Set (00h = none exists)

19h

1Ah

32h

34h

0000h

0000h Address for Alternate OEM Extended Table (00h = none exists)

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 23/55

Table 9 System Interface String

Addresses

(Word Mode)

Address

(Byte Mode) Data Description

1Bh 36h 0027h VCC Min. (write/erase)

D7~D4 : volt, D3~D0 : 100 millivolt

1Ch 38h 0036h VCC Max. (write/erase)

D7~D4 : volt, D3~D0 : 100 millivolt

1Dh 3Ah 0000h VPP Min. voltage (00h = no VPP pin present)

1Eh 3Ch 0000h VPP Max. voltage (00h = no VPP pin present)

1Fh 3Eh 0004h Typical timeout per single byte/word write 2N μs

20h 40h 0000h Typical timeout for Min. size buffer write 2N μs (00h = not supported)

21h 42h 000Ah Typical timeout per individual block erase 2N ms

22h 44h 0000h Typical timeout for full chip erase 2N ms (00h = not supported)

23h 46h 0005h Max. timeout for byte/word write 2N word times typical

24h 48h 0000h Max. timeout for buffer write 2N word times typical

25h 4Ah 0004h Max. timeout per individual block erase 2N word times typical

26h 4Ch 0000h Max. timeout per full chip erase 2N word times typical (00h = not supported)

Table 10 Device Geometry Definition

Addresses

(Word Mode)

Address

(Byte Mode) Data Description

27h 4Eh 0016h Device Size = 2N byte

28h

29h

50h

52h

0002h

0000h Flash Device Interface description (refer to CFI publication 100)

2Ah

2Bh

54h

56h

0000h

Max. number of byte in multi-byte write = 2N

(00h = not supported)

2Ch 58h 0002h Number of Erase Block Regions within device

2Dh

2Eh

2Fh

30h

5Ah

5Ch

5Eh

60h

0007h

0000h

0020h

0000h

Erase Block Region 1 Information

(refer to the CFI specification or CFI publication 100)

31h

32h

33h

34h

62h

64h

66h

68h

003Eh

0000h

0001h

Erase Block Region 2 Information

35h

36h

37h

38h

6Ah

6Ch

6Eh

70h

0000h

Erase Block Region 3 Information

39h

3Ah

3Bh

3Ch

72h

74h

76h

78h

0000h

Erase Block Region 4 Information

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 24/55

Table 11 Primary Vendor-Specific Extended Query

Addresses

(Word Mode)

Address

(Byte Mode) Data Description

40h

41h

42h

80h

82h

84h

0050h

0052h

0049h

Query-unique ASCII string “ PRI”

43h 86h 0031h Major version number, ASCII

44h 88h 0031h Minor version number, ASCII

45h 8Ah 0000h Address Sensitive Unlock

0 = Required, 1 = Not Required

46h 8Ch 0002h Erase Suspend

0 = Not Supported, 1 = To Read Only, 2 = To Read & Write

47h 8Eh 0001h Erase Protect

0 = Not Supported, X = Number of sectors in per group

48h 90h 0001h Sector Temporary Unprotect

00 = Not Supported, 01 = Supported

49h 92h 0004h Sector Protect/Group Unprotect scheme

4Ah 94h 0000h Simultaneous Operation

00 = Not Supported, 01 = Supported

4Bh 96h 0000h Burst Mode Type

00 = Not Supported, 01 = Supported

4Ch 98h 0000h Page Mode Type

00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page

4Dh 9Ah 00B5h ACC (Acceleration) Supply Minimum

00h = Not Supported, D7-D4 : Volt, D3-D0 : 100mV

4Eh 9Ch 00C5h ACC (Acceleration) Supply Maximum

00h = Not Supported, D7-D4 : Volt, D3-D0 : 100mV

4Fh 9Eh 000Xh Top / Bottom Boot Sector Flag

(02h = Bottom Boot device, 03h = Top Boot Device)

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 25/55

8. ABSOLUTE MAXIMUM RATINGS

Storage Temperature

Plastic Packages . . . . . . . . . . . . . . –65°C to +150°C

Ambient Temperature

with Power Applied. . . . . . . .. . . . . . –65°C to +125°C

Voltage with Respect to Ground

VCC (Note 1) . . . . . . . . . . .–0.5 V to +4.0 V

A9, O

, and ESETR (Note 2) . . . –0.5 V to +10.5V

All other pins (Note 1). . . . . . . . . . –0.5 V to VCC +0.5 V

Output Short Circuit Current (Note 3) .. . .. 200 mA

Notes:

1. Minimum DC voltage on input or I/O pins is –0.5

V. During voltage transitions, input or I/O pins

may overshoot VSS to –2.0 V for periods of up

to 20 ns. See Figure 1. Maximum DC voltage

on input or I/O pins is VCC +0.5 V. During

voltage transitions, input or I/O pins may

overshoot to VCC +2.0 V for periods up to 20 ns.

See Figure 2.

2. Minimum DC input voltage on pins A9, O

, and

ESETR is -0.5 V. During voltage transitions, A9, O

and ESETR may overshoot VSS to –2.0 V for periods

of up to 20 ns. See Figure 1. Maximum DC input voltage

on pin A9 is +10.5V which may overshoot to 14V

periods up to 20 ns.

3. No more than one output may be shorted to ground at a

time. Duration of the short circuit should not be greater

than one second.

Stresses above those listed under “Absolute Maximum

Ratings” may cause permanent damage to the device.

This is a stress rating only; functional operation of the

device at these or any other conditions above those

indicated in the operational sections of this data sheet is

not implied. Exposure of the device to absolute maximum

rating conditions for extended periods may affect device

reliability.

Figure 1. Maximum Negative Overshoot Waveform

Figure 2. Maximum Positive Overshoot Waveform

+0.8V

-0.5V

-2.0V

20ns

Vcc

+2.0V

Vcc

+0.5V

2.0V

20ns

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 26/55

OPERATING RANGES

Commercial (C) Devices Ambient Temperature (TA) . . . . . . . . . . . 0 °C to +70°C

VCC Supply Voltages VCC for all devices . . . . . . . . . . . . . . . . . . . . .2.7 V to 3.6 V

Operating ranges define those limits between which the functionality of the device is guaranteed.

Table 12. Capacitance TA = 25°C , f = 1.0 MHz

Symbol Description Conditions Min. Typ. Max. Unit

CIN1 Input Capacitance VIN = 0V

8 pF

CIN2 Control Pin Capacitance VIN = 0V

12 pF

COUT Output Capacitance VOUT = 0V

12 pF

9. DC CHARACTERISTICS

Table 13. DC Characteristics TA = 0°C to 70°C, VCC = 2.7V to 3.6V

Symbol Description Conditions Min. Typ. Max. Unit

ILI Input Leakage Current VIN = VSS or VCC, VCC = VCC max. ±1 uA

ILIT A9 Input Leakage Current VCC = VCC max; A9=10.5V 35 uA

ILO Output Leakage Current VOUT = VSS or VCC, VCC = VCC max ±1 uA

@5MHz 9 25 mA

CE= VIL, O

= VIH

( Byte Mode ) @1MHz 2 5 mA

@5MHz 9 40 mA

ICC1 V

CC Active Read Current

CE= VIL, O

= VIH

( Word Mode ) @1MHz 2 5 mA

ICC2 V

CC Active write Current CE= VIL, O

= VIH 20

50 mA

ICC3 V

CC Standby Current CE; ESETR = VCC ± 0.3V 25 100 uA

ICC4 VCC Standby Current

During Reset ESETR = VSS ± 0.3V 25 100 uA

ICC5 Automatic sleep mode VIH = VCC ± 0.3V; VIL = VSS ± 0.3V 25 100 uA

VIL Input Low Voltage(Note 1) -0.5 0.8 V

VIH Input High Voltage 0.7x VCC V

CC + 0.3 V

VID

Voltage for Auto-Select

and Temporary Sector

Unprotect

VCC =3.3V 10 10.5 V

VOL Output Low Voltage IOL = 4.0mA, VCC = VCC min 0.45 V

VOH1 Output High Voltage(TTL) IOH = -2mA, VCC = VCC min 0.7x VCC

VOH2 Output High Voltage IOH = -100uA, VCC min VCC -0.4

VLKO Low VCC Lock-out Voltage 2.3 2.5 V

Notes :

1. VIL min. = -1.0V for pulse width is equal to or less than 50 ns.

IL min. = -2.0V for pulse width is equal to or less than 20 ns.

2. VIH max. = VCC + 1.5V for pulse width is equal to or less than 20 ns

If V

IH is over the specified maximum value, read operation cannot be guaranteed.

3. Automatic sleep mode enable the low power mode when addresses remain stable for tACC + 30 ns

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 27/55

10. AC CHARACTERISTICS

TEST CONDITIONS

Figure 3. Test Setup

Figure 4. Input Waveforms and Measurement Levels

Input

3.0V

1.5V

Output

1.5V

Test Points

AC TESTING : Inputs are driven at 3.0V for a logic "1" and 0V for a logic "0"

Input pulse rise and fall times are < 5ns.

ESMT

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Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 28/55

10.1 Read Operation

TA = 0°C to 70°C, VCC = 2.7V~3.6V

Table 14. Read Operations

-70 -90

Symbol Description Conditions Min. Max. Min. Max.

Unit

tRC Read Cycle Time (Note 1) 70 90 ns

tACC Address to Output Delay CE=O

= VIL 70 90 ns

tCE CE to Output Delay O

= VIL 70 90 ns

tOE O

to Output Delay CE = VIL 30 35 ns

tDF O

High to Output Float (Note1) CE = VIL 25 30 ns

Output Enable Read 0 0 ns

tOEH Hold Time Toggle and

Data Polling 10 10 ns

tOH Address to Output hold CE =OE = VIL 0 0 ns

Notes :

1. Not 100% tested.

2. tDF is defined as the time at which the output achieves the open circuit condition and data is no longer driven.

Figure 5. Read Timing Waveform

tRC

Addresses Stable

Output Valid

Address

High-Z

RY/BY

RESET

Outputs

High-Z

tACC

tOEH

tOE

tOH

tDF

tCE

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 29/55

10.2 Program/Erase Operation

Table 15. WE Controlled Program/Erase Operations(TA = 0°C to 70°C, VCC = 2.7V~3.6V)

-70 -90

Symbol Description Min. Max. Min. Max. Unit

tWC Write Cycle Time (Note 1) 70 90

tAS Address Setup Time 0 0 ns

tAH Address Hold Time 45 45 ns

tDS Data Setup Time 35 45 ns

tDH Data Hold Time 0 0 ns

tOES Output Enable Setup Time 0 0 ns

tGHWL Read Recovery Time Before

Write (O

High to WE low) 0 0 ns

tCS CE Setup Time 0 0 ns

tCH CE Hold Time 0 0 ns

tWP Write Pulse Width 35 35 ns

tWPH Write Pulse Width High 30 30 ns

Byte 9(typ.) 9(typ.)

tWHWH1 Programming Operation

(Note 2) Word 11(typ.) 11(typ.) us

tWHWH2 Sector Erase Operation (Note 2) 0.7(typ.) 0.7(typ.) sec

tVCS V

CC Setup Time (Note 1) 50 50 us

tRB Recovery Time from RY/BY 0 0 ns

tbusy Program/Erase Valid to RY/BY Delay 90 90 ns

Notes :

1. Not 100% tested.

2. See the "Erase and Programming Performance" section for more information.

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 30/55

Table 16. CE Controlled Program/Erase Operations(TA = 0°C to 70°C, VCC = 2.7V~3.6V)

-70 -90

Symbol Description Min. Max. Min. Max. Unit

tWC Write Cycle Time (Note 1) 70 90 ns

tAS Address Setup Time 0 0 ns

tAH Address Hold Time 45 45 ns

tDS Data Setup Time 35 45 ns

tDH Data Hold Time 0 0 ns

tOES Output Enable Setup Time 0 0 ns

tGHEL Read Recovery Time Before Write 0 0 ns

tWS WE Setup Time 0 0 ns

tWH WE Hold Time 0 0 ns

tCP CE Pulse Width 35 35 ns

tCPH CE Pulse Width High 30 30 ns

Byte 9(typ.) 9(typ.) us

tWHWH1 Programming

Operation(note2) Word 11(typ.) 11(typ.) us

tWHWH2 Sector Erase Operation (note2) 0.7(typ.) 0.7(typ.) sec

Notes :

1. Not 100% tested.

2. See the "Erase and Programming Performance" section for more information.

ESMT

F49L320UA/F49L320BA

Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 31/55

Figure 6. Write Command Timing Waveform

Data

VIH

VIL

ADD Valid

VIH

VIL

VIH

VIL

VIH

VIL

VIH

VIL

tAH

tAS

tWP tWPH

VCC 3V

Address

tCWC

tCS tCH

tDH

tDS

DIN

tOES

ESMT

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Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 32/55

Figure 7. Embedded Programming Timing Waveform

Notes :

1. PA = Program Address, PD = Program Data, DOUT is the true data the program address.

Address

555h PA PA PA

tWC tAS

Read Status Data (last two cycle)

tAH

tCH

tGHWL

tWP

tCS tWPH

A0h

tDS tDH

PD Status DOUT

tWHWH1

Data

tVCS

VCC

Program Command Sequence (last two cycle)

RY/BY

tRB

tBUSY

ESMT

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Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 33/55

Figure 8. Embedded Programming Algorithm Flowchart

Start

Write Data AAH Address 555H

Verify Work OK?

Embedded Program Completed

Data Poll

from system

Yes

Last address?

Yes

Write Data 55H Address 2AAH

Write Data A0H Address 555H

Increment

address

Write Program Data/Address

ESMT

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Revision: 1.1 34/55

Figure 9. CE Controlled Program Timing Waveform

Notes :

1. PA = Program Address, PD = Program Data, DOUT = Data Out , DQ7 = complement of data written to device

2. Figure indicates the last two bus cycles of the command sequence..

Address

555 for prog ram

2AA for erase

Data Polling

tAStWC

Data

RESET

RY/BY

PA for program

SA for sector erase

555 for ch ip erase

A0 for program

55 for erase

PD for program

30 for sector erase

10 for chip erase

tWH tAH

tDS

tDH

tGHEL

tCP

tCPH tBUSY

tWS

DOUT

DQ7

tWHWH1 or 2

tRH

ESMT

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Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 35/55

Figure 10. Embedded Chip Erase Timing Waveform

Notes :

SA = Sector Address (for Sector Erase, VA = Valid Address for reading status data

(see "Write Operation Status")

Address

2AAh 555h VA VA

tWC tAS

Erase Command Sequence(last two cycle) Read Status Data

tAH

tCH

tGHWL

tWP

tCS tWPH

55h

tDS tDH

10h In

Progress Complete

tWHWH2

Data

tRB

tBUSY

RY/BY

tVCS

VCC

ESMT

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Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

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Figure 11. Embedded Chip Erase Algorithm Flowchart

Start

Write Data AAH Address 555H

Embedded Chip Erease Completed

Data = FFh?

Yes

Write Data 55H Address 2AAH

Write Data 80H Address 555H

Write Data AAH Address 555H

Write Data 55H Address 2AAH

Write Data 10H Address 555H

Data Poll from System

ESMT

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Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

Revision: 1.1 37/55

Figure 12. Embedded Sector Erase Timing Waveform

Notes :

SA = Sector Address (for Sector Erase, VA = Valid Address for reading status data

(see "Write Operation Status")

Address

2AAh SA VA VA

tWC tAS

Erase Command Sequence(last two cycle) Read Status Data

tAH

tCH

tGHWL

tWP

tCS tWPH

55h

tDS tDH

30h In

Progress Complete

tWHWH2

Data

tRB

tBUSY

RY/BY

tVCS

VCC

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Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2008

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Figure 13. Embedded Sector Erase Algorithm Flowchart

Start

Write Data AAH Address 555H

Embedded Sector Erease Completed

Last Sector

to Erase

Yes

Write Data 55H Address 2AAH

Write Data 80H Address 555H

Write Data AAH Address 555H

Write Data 55H Address 2AAH

Write Data 30H Address SA

Data Poll from System

Data = FFH?

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Figure 14. Erase Suspend/Erase Resume Flowchart

Start

Write Data B0H

Toggle Bit checking Q6

not toggled

Yes

ERASE RESUME

No ERASE SUSPEND

Read Array or

Program

Another

Erase Suspend?

Yes

Reading or

Programming End

Yes

Write Data 30H

Continue Erase

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Figure 15. In-System Sector Protect/Unprotect Timing Waveform (RESE

Control)

Notes :

When sector protect, A6=0, A1=1, A0=0.

When sector unprotect, A6=1, A1=1, A0=0.

RESET

SA,A6

A1,A0

Data

1us

Sector Protect Sector Unprotect

Valid* Valid* Valid*

60h 60h 40h Status

Verify

Sector Protect = 150us

Sector Unprotect = 15ms

VID

VIH

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Figure 16. In-System Sector Protect/Unprotect Algorithm (RESE

= VID)

Start Start

PLSCNT = 1 PLSCNT = 1

Set up first

sector address

Sector Unprotect :

Write 60h to sector

address with

A6 = 1, A1 = 1,

A0 = 0

Wait 15 ms?

First Write

Cycle = 60h?

All sectors

protected?

Data = 00h?

Last sector

verified?

RESET = VID

Yes

First Write

Cycle = 60h? Temporary Sector

Unprotect Mode

Set up

next sector

address

Device failed

Yes

Wait 1 s?

Temporary Sector

Unprotect Mode

Data = 01h?

Yes

RESET = VID

PLSCNT

= 1000?

Wait 1 s?

Increment

PLSCNT

Set up sector

address

Sector Protect :

Write 60h to sector

address with

A6 = 0, A1 = 1,

A0 = 0

Verify Sector

Protect : Write 40h

to sector address

with A6 = 0,

A1 = 1, A0 = 0

Wait 150 s?

Read from

sector address

with A6 = 0,

A1 = 1, A0 = 0

PLSCNT = 25?

Increment

PLSCNT

Protect another

sector?

Remove VID

from RESET

Remove VID

from RESET

Write reset

command

Write reset

command

Sector Protect

complete

Sector Protect

complete

Sector Protect

Algorithm Sector Unprotect

Algorithm

Yes

Reset

PLSCNT = 1

Protect all sector :

The indicated portion

of the sector protect

algorithm must be

performed for all

unprotected sectors

prior to issuing the

first sector

unprotect address

Yes

Read from

sector address

with A6 = 1,

A1 = 1, A0 =0

Verify Sector

Unprotect : Write

40h to sector

address with

A6 = 1, A1 = 1,

A0 =0

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Figure 17. Sector Protect Timing Waveform (A9, OE Control)

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Figure 18. Sector Protection Algorithm (A9, OE Control)

Start

Set up sector address

Data = 01H?

Sector Protection

Complete

Activate WE Pluse

Remove VID from A9

Write reset command

Device Failed Protect Another

Sector?

Yes

PLSCNT = 1

OE = VID, A9 = VID, CE = VIL

A6 = VIL

Time out 150us

Set WE = VIH , CE = OE = VIL

A9 should remain VID

Read from Sector

Address = SA, A0=1, A1 = 1

PLSCNT = 32?

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WRITE OPERATION STATUS

Figure 19. Data Polling Algorithm

Notes :

1. VA =Valid address for programming.

2. DQ7 should be re-checked even DQ5 = "1" because

DQ7 may change simultaneously with DQ5.

Start

Read DQ7~DQ0

Add. = VA(1)

DQ7 = Data?

FAIL Pass

DQ5 = 1?

Read DQ7~DQ0

Add. = VA

Yes

DQ7 = Data? Yes

(2)

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Figure 20. Toggle Bit Algorithm

Note :

1. Read toggle bit twice to determine whether or not it is toggle.

2. Recheck toggle bit because it may stop toggling as DQ5 change to "1".

Start

Read DQ7 ~ DQ0

Toggle Bit = DQ6

Toggle?

Program / Erase operation

Not complete, write

reset command

Program / Erase

operation complete

DQ5 = 1?

Read DQ7~DQ0 Twice

Yes

Toggle bit DQ6

= Toggle?

Yes

Read DQ7 ~ DQ0 (Note 1)

(Note 1,2)

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Figure 21. Data Polling Timings (During Embedded Algorithms)

Notes :

VA = Valid Address. Figure shows first status cycle after command sequence, last status read cycle, and array data read cycle.

Address

tACC

DQ7

RY/BY

tCE

VA VA

tRC

tOE

tOEH

tCH

tDF

tOH

Complement Complement True Vaild Data

High-Z

Status Data Status Data True Vaild Data

High-Z

DQ0~DQ6

tBUSY

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Figure 22. Toggle Bit Timing Waveforms (During Embedded Algorithms)

Notes :

VA = Valid Address; not required for DQ6. Figure shows first status cycle after command sequence, last status read cycle, and

array data read cycle.

Address

tACC

DQ6/DQ2

RY/BY

tCE

VA VA

tRC

tOE

tOEH

tCH

tDF

tOH

Vaild Status

tBUSY

Vaild Status

High-Z

(first read ) (second read)

Vaild Data

(stops toggling)

Vaild Data

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10.3 Hardware Reset Operation

Table 17. AC CHARACTERISTICS

Symbol Description All Speed Options Unit

TREADY1 ESETR Pin Low (During Embedded Algorithms)

to Read or Write (See Note) Max 20 us

TREADY2 ESETR Pin Low (NOT During Embedded

Algorithms) to Read or Write (See Note) Max 500 ns

TRP ESETR Pulse Width (During Embedded

Algorithms) Min 500 ns

TRH ESETR High Time Before Read(See Note) Min 50 ns

TRB RY/BY Recovery Time(to CE , O

go low) Min 0 ns

Notes :

Not 100% tested

Figure 23. RESE

Timing Waveform

RY/BY

CE, OE

RESET

RY/BY

CE, OE

RESET

tRP

tReady2

tRH

tRP

tRB

tReady1

Reset Timing NOT during Automatic Algorithms

Reset Timing during Automatic Algorithms

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10.4 TEMPORARY SECTOR UNPROTECT Operation

Table 18. Temporary Sector Unprotect

Symbol Description All Speed Options Unit

TVIDR V

ID Rise and Fall Time (See Note) Min 500 ns

TRSP ESETR Setup Time for Temporary Sector

Unprotect Min 4 us

Notes:

Not 100% tested

Figure 24. Temporary Sector Unprotect Timing Diagram

Figure 25. DQ6 vs DQ2 for Erase and Erase Suspend Operations

Notes :

The system can use OE or CE to toggle DQ2 / DQ6, DQ2 toggles only when read at an address within an erase-suspended.

DQ6

DQ2

Enter Embedded

Erasing

Erase

Suspend

Enter Erase

Suspend Program

Erase

Suspend

Program

Erase

Suspend

Read

Erase

Resume

Erase Erase

Complete

RY/BY

RESET

tVIDR

tRSP

0 or VCC

Program or Erase Command Sequence tVIDR

0 or VCC

12V

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Figure 26. Temporary Sector Unprotect Algorithm

Notes :

1. All protected status are temporary unprotect.

ID = 10V~10.5V

2. All previously protected sectors are protected again.

Start

RESET = VID (Note 1)

RESET = VIH

Program Erase or Program Operation

Temporary Sector Unprotect Completed (Note 2)

Operation Completed

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Figure 27. ID Code Read Timing Waveform

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11. ERASE AND PROGRAMMING PERFORMANCE

Table 19. Erase And Programming Performance (Note.1)

Limits

Parameter Typ.(2) Max.(3) Unit

Sector Erase Time 0.7 15 Sec

Chip Erase Time 25 50 Sec

Byte Programming Time 9 300 Us

Word Programming Time 11 360 Us

Byte Mode 36 108 Sec

Chip Programming Time Word Mode 24 72 Sec

Erase/Program Cycles (1) 100,000 Cycles

Data Retention 20 Years

Notes:

1.Not 100% Tested, Excludes external system level over head.

2.Typical values measured at 25 ° C, 3.3V.

3.Maximum values measured at 85° C, 2.7V.

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12. PACKAGE DIMENSION

48-LEAD TSOP(I) ( 12x20 mm )

Dimension in mm Dimension in inch Dimension in mm Dimension in inch

Symbol Min Norm Max Min Norm Max Symbol Min Norm Max Min Norm Max

A ------- ------- 1.20 ------- ------- 0.047 D 20.00 BSC 0.787 BSC

A 1 0.05 ------- 0.15 0.006 ------- 0.002 D 1 18.40 BSC 0.724 BSC

A 2 0.95 1.00 1.05 0.037 0.039 0.041 E 12.00 BSC 0.472 BSC

b 0.17 0.22 0.27 0.007 0.009 0.011 e 0.50 BSC 0.020 BSC

b1 0.17 0.20 0.23 0.007 0.008 0.009 L 0.50 0.60 0.70 0.020 0.024 0.028

c 0.10 ------- 0.21 0.004 ------- 0.008 θ 0

O ------- 8O 0

O ------- 8O

c1 0.10 ------- 0.16 0.004 ------- 0.006

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Revision: 1.1 54/55

Revision History

Revision Date Description

0.1 2007.05.31

Original

0.2 2007.10.01

Modify Manufacturer ID command

0.3 2007.11.28

Add Unlock Bypass Program description

0.4 2008.01.14

1.Remove Unlock Bypass Program description

2.Add “All Pb-free products are RoHS – Compliant” to

FEATURES

3.Modify Icc spec and VIH , VIOH1

1.0 2008.08.20

1. Delete Preliminary

2. Add Revision History

3. Add CFI address (4Dh-4Fh)

1.1 2008.09.30

Modify Chip Erase Time

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Important Notice

No part of this document may be reproduced or duplicated in any form or

by any means without the prior permission of ESMT.

The contents contained in this document are believed to be accurate at

the time of publication. ESMT assumes no responsibility for any error in

this document, and reserves the right to change the products or

specification in this document without notice.

The information contained herein is presented only as a guide or

examples for the application of our products. No responsibility is

assumed by ESMT for any infringement of patents, copyrights, or other

intellectual property rights of third parties which may result from its use.

No license, either express , implied or otherwise, is granted under any

patents, copyrights or other intellectual property rights of ESMT or

others.

Any semiconductor devices may have inherently a certain rate of failure.

To minimize risks associated with customer's application, adequate

design and operating safeguards against injury, damage, or loss from

such failure, should be provided by the customer when making

application designs.

ESMT's products are not authorized for use in critical applications such

as, but not limited to, life support devices or system, where failure or

abnormal operation may directly affect human lives or cause physical

injury or property damage. If products described here are to be used for

such kinds of application, purchaser must do its own quality assurance

testing appropriate to such applications.