M45PE10-VMN6P - Numonyx, B.V.

April 2008 Rev 7 1/47

M45PE10

1-Mbit, page-erasable serial flash memory

with byte-alterability and 75 MHz SPI b us interface

Features

■SPI bus compatible serial interface

■75 MHz clock rate (maximum)

■2.7 V to 3.6 V single supply voltage

■1-Mbit of page-erasable Flash memory

■Page size: 256 bytes

– Page write in 11 ms (typical)

– Page program in 0.8 ms (typical)

– Page erase in 10 m s (typical)

■Sector erase (512 Kbits )

■Hardware write protection of the bottom sector

(64 Kbytes)

■Electronic signature

– JEDEC standard two-byte signature

(4011h)

– Unique ID code (UID) with 16 bytes read-

only, available upon customer request only

in the T9HX process

■Deep power-down mode 1 µA (typical)

■More than 10 0 00 0 writ e cyc le s

■More than 20 years data retention

■Packages

– ECOPACK® (RoHS compliant)

SO8N (MN)

150 mil width

VFQPN8 (MP)

(MLP8)

www.numonyx.com

Contents M45PE10

2/47

Contents

1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1 Serial Data output (Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Serial Data input (D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Serial Clock (C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.4 Chip Select (S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5 Reset (Reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.6 Write Protect (W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.7 VCC supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8 VSS ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 SPI modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 Operating features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.1 Sharing the overhead of modifying data . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2 An easy way to modify data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.3 A fast way to modify data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.4 Polling during a write, program or erase cycle . . . . . . . . . . . . . . . . . . . . . 13

4.5 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.6 Active power, standby power and deep power-down modes . . . . . . . . . . 13

4.7 Status register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.8 Protection modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5 Memory organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6 Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6.1 Write enable (WREN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.2 Write disable (WRDI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.3 Read identification (RDID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.4 Read status register (RDSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.4.1 WIP bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

M45PE10 Contents

3/47

6.4.2 WEL bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.5 Read data bytes (READ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.6 Read data bytes at higher speed (FAST_READ) . . . . . . . . . . . . . . . . . . . 23

6.7 Page write (PW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.8 Page program (PP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.9 Page erase (PE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.10 Sector erase (SE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.11 Deep power-down (DP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.12 Release from deep power-down (RDP) . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7 Power-up and power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8 Initial delivery state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

9 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

11 Package mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

12 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

List of tables M45PE10

4/47

List of tables

Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 2. Memory organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 3. Instruction set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 4. Read identification (RDID) data-out sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 5. Status register format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 6. Power-up timing and VWI threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 7. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 8. Operating conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 9. AC measurement conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5

Table 10. Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 11. DC characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Table 12. AC characteristics (25 MHz operation). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 13. AC characteristics (33 MHz operation). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 14. AC characteristics (50 MHz operation). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table 15. AC characteristics (75 MHz operation, T9HX (0.11 µm) process) . . . . . . . . . . . . . . . . . . . 40

Table 16. SO8N – 8 lead plastic small outline, 150 mils body width, package

mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table 17. MLP8, 8-lead very thin dual flat package no lead, 6 × 5 mm, package

mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 18. Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5

Table 19. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

M45PE10 List of figures

5/47

List of figures

Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 2. SO and VDFPN connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3. Bus master and memory devices on the SPI bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 4. SPI modes supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 5. Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 6. Write enable (WREN) instruction sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 7. Write disable (WRDI) instruction sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 8. Read identification (RDID) instruction sequence and data-out sequence . . . . . . . . . . . . . 20

Figure 9. Read status register (RDSR) instruction sequence and data-out sequence . . . . . . . . . . . 21

Figure 10. Read data bytes (READ) inst ruction sequence and data-ou t sequence . . . . . . . . . . . . . . 22

Figure 11. Read data bytes at higher speed (FAST_READ) instruction sequence

and data-out sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 12. Page write (PW) instruction sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 13. Page program (PP) instruction sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 14. Page erase (PE) instruction sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 15. Sector erase (SE) instruction sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 16. Deep power-down (DP) instruction sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 17. Release from deep power-down (RDP) instruction sequence . . . . . . . . . . . . . . . . . . . . . . 31

Figure 18. Power-up timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 19. AC measurement I/O waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 20. Serial input timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 21. Write Protect setup and hold timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 22. Output timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Figure 23. Reset AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Figure 24. SO8N – 8 lead plastic small out line , 150 mils bod y wi dt h, pa ck ag e ou tlin e . . . . . . . . . . . . 43

Figure 25. MLP8, 8-lead very thin dual flat package no lead, 6 × 5 mm, package outline. . . . . . . . . . 44

Description M45PE10

6/47

1 Description

The M45PE10 is a 1-Mbit (128 Kbit x 8 bit) serial paged flash memory accessed by a high

speed SPI-compatible bu s.

The memory can be written or programmed 1 to 256 b ytes at a time , using the page write or

page prog ram instruction. The page write instruction consists of an integrated page erase

cycle followed by a page program cycle.

The memory is organized as 2 sectors, each containing 256 pages. Each page is 256 bytes

wide. Th us, the whole memory can be vie wed as consisting of 512 p ag es, or 131,072 bytes .

The memory can be erased a page at a time, using the page er ase instruction, or a sect or at

a time, using the sector erase instruction.

Important note

This datasheet deta ils the functionalit y of the M45PE10 devices , based on the previous T7X

process or based on the curr ent T9HX process (available since A ugust 2007). Delivery of

parts operating with a maximum clock rat e of 75 MHz starts from week 8 of 2008.

Figure 1. Logic diagram

Figure 2. SO and VDFPN connections

1. There is an exposed central pad on the underside of the VFQFPN package. This is pulled, internally, to

VSS, and must not be allowed to be connected to any other voltage or signal line on the PCB.

2. See Package mechanical section for package dimensions, and how to identify pin-1.

Reset

AI07403

VCC

M45PE10

VSS

AI07404

5WS VCC

VSS

Reset

M45PE10

M45PE10 Description

7/47

Table 1. Signal names

Signal name Function Direction

C Serial Clock Input

D Serial Data input Input

Q Serial Data output Output

S Chip Select Input

W Write Protect Input

Reset Reset Input

VCC Supply voltage

VSS Ground

Signal descriptions M45PE10

8/47

2 Signal descriptions

2.1 Serial Data output (Q)

This output signal is used to tr ansf er data serially out of the de vice . Data is shifted out on the

falling edge of Serial Clock (C).

2.2 Serial Data input (D)

This input signal is used to transfer data serially into the device. It receives instructions,

addresses, and the data to be programmed. Values are latched on the rising edge of Serial

Clock (C).

2.3 Serial Clock (C)

This input signal provides the timing of the serial interface. Instructions, addresses, or data

present at serial data input (D) are latched on the rising edge of Serial Clock (C). Data on

serial data output (Q) changes after the falling edge of Serial Clock (C).

2.4 Chip Select (S)

When this input signal is High, th e device is deselected an d serial data output (Q) is at high

impedance. Unless an internal read, prog ram, e rase or write cycle is in prog ress , the device

will be in the standby power mode (this is not the deep power-down mode). Driving Chip

Select (S) Low selects the device, placing it in the active power mode.

After power-up, a falling edge on Chip Select (S) is required prior to the start of any

instruction.

2.5 Reset (Reset)

The Reset (Reset) input pr ovides a hardw are reset f or the memory. In this mode, the outpu ts

are high impedance.

When Reset (Reset) is driven High, the memory is in the normal operating mod e. When

Reset (Reset) is driven Lo w, the memory will enter the reset mode , pro vided that no internal

operat ion is currently in prog ress. Driving Reset (Reset) Low while an internal operation is in

progress has no effect on that internal operation (a write cycle, program cycle, or erase

cycle).

2.6 Write Protect (W)

This input signal puts the device in the hardware protected mode, when write protect (W) is

connected to VSS, causing th e first 256 pages of memory to become read-only b y protecti ng

them from write, program and erase operations. When write protect (W) is connected to

VCC, the first 25 6 pa ge s of mem o ry be h ave like the other pag es of memory.

M45PE10 Signal descriptions

9/47

2.7 VCC supply voltage

VCC is the supply voltage.

2.8 VSS ground

VSS is the reference for the VCC supply voltage.

SPI modes M45PE10

10/47

3 SPI modes

These devices can be driven by a microcontroller with its SPI peripheral running in either of

the two follo wing modes:

●CPOL=0, CPHA=0

●CPOL=1, CPHA=1

For these two modes, input data is latched in on the rising edge of Serial Clock (C), and

output data is available from the falling edge of Serial Clock (C).

The difference be tween the two mod es, as sho wn in Figure 4, is the clock polarity when the

bus mast er is in standby mode and not transferring data:

●C remains at 0 for (CPOL=0, CPHA=0)

●C remains at 1 for (CPOL=1, CPHA=1)

Figure 3. Bus master and memory devices on the SPI bus

1. The Write Protect (W) signal should be driven, High or Low as appropriate.

Figure 3 shows a n examp le of three de vices connected t o an MCU , on an SPI bus . Only one

device is selected at a time, so only one device drives the serial data output (Q) line at a

time, the other devices are high impedance.

The pull-up resistor R (represented in Figure 3) ensures that no de vice is selected if the bu s

master leaves the S line in the high impedance state.

In applications where the bus master might enter a state where all inputs/outputs SPI lines

are in high impedance at the same time (for example, if the bus master is reset during the

transmission of an inst ruction), the Clock line (C) must be connected to an external pull-

down resistor so that, if all inputs/outputs become high impedance, the C line is pulled Low

(while the S line is pulled High). This ensures that S and C do no t become Hig h at the same

time, and so, that the tSHCH requir em e nt is met.

AI12836c

SPI bus master

SPI memory

device

SDO

SDI

SCK

CQD

SPI memory

device

CQD

SPI memory

device

CQD

CS3 CS2 CS1

SPI interface with

(CPOL, CPHA) =

(0, 0) or (1, 1)

WReset WWReset

RR R

VCC

VCC VCC VCC

VSS

VSS VSS VSS

Reset

M45PE10 SPI modes

11/47

The typical value of R is 100 kΩ, assuming that the t ime constant R*Cp (Cp = parasitic

capacitance of the bus line) is short enough, as the S and C lines must reach the correct

state (S = High and C = Low) while the SPI b us is in high impedance.

Example: Cp = 50 pF, that is R*Cp = 5 µs <=> the application must ensure th at the bus

master never leaves the SPI bus in the high impedance state for a time period shorter than

5µs.

Figure 4. SPI modes supported

AI01438B

MSB

CPHA

CPOL

MSB

Operating features M45PE10

12/47

4 Operating features

4.1 Sharing the overhead of modifying data

To write or program one (or more) data bytes, two instructions are required: Write Enable

(WREN), which is one byte, and a page write (PW) or page progr am (PP) sequence, which

consists of f our by tes plus data. This is f ollo w ed b y the internal cycle (of duration t PW or tPP).

To share this overhead, the page write (PW) or page program (PP) instruction allows up to

256 bytes to be programmed (changing bits from 1 to 0) or written (changing bits to 0 or 1)

at a time, provided that they lie in consecutive addresses on the same page of memory.

4.2 An easy way to modify data

The page write (PW) instruction provides a convenient way of modifying data (up to 256

contiguous bytes at a time), and simply requires t he start address, and the new data in the

instruction sequence.

The page write (PW) instruction is entered by driving Chip Select (S) Low, and then

transmitting the instruction byte, three address bytes (A23-A0) and at least one data byte,

and then driving Chip Select (S) High. While Chip Select (S) is being held Lo w, the data

bytes are written to the data buffer, starting at the address give n in the third address byte

(A7-A0). When Chip Select (S) is driven High, the write cycle starts. The remaining,

unchanged, bytes of the data buffer are automatically loaded with the values of the

correspond in g bytes of the add re sse d mem o ry pa g e. The addr e sse d me m ory page then

automatically put into an erase cycle. Finally, the addressed memory page is programmed

with the contents of the data buffer.

All of this buffer management is handled internally, and is transparent to the user. The user

is given the facility of being able to alter the contents of the memory on a byte-by-byte basis .

For optimized timings, it is recommended to use the page write (PW) instruction to write all

consecutive targeted bytes in a single sequ ence versus using several page write (PW)

sequences with each containing only a few bytes (see Section 6.7: Page write (PW),

Table 14: AC characteristics (50 MHz operation), and Table 15: AC characteristics (75 MHz

operation, T9HX (0.11 µm) process)).

M45PE10 Operating features

13/47

4.3 A fast wa y to modify data

The Page Program (PP) instruction prov ides a fast way of modifying data (up to 256

contiguous bytes at a time), provided that it only involves resetting bits to 0 that had

previously been set to ‘1’.

This might be:

●when the designer is programming the device for the first time

●when the designer knows that the page has already been erased by an earlier page

erase (PE) or sector erase (SE) instruction. This is useful, for example, when storing a

fast stream of data, having first performed the erase cycle when time was available

●when the designer knows that the only changes inv olve resetting bits to 0 that are still

set to ‘1’. When this method is possible, it has the additional advantage of minimizing

the number of unnecessary erase operations, and the extra stress incurred by each

page.

F or optimized timings, it is recommended to use the page program (PP) instruction to

program all consecutive targeted bytes in a single sequence versus using several page

program (PP) sequences with each containing only a few bytes (see Section 6.8: Page

program (PP), Tab le 14: AC characteristics (50 MHz operation), and Table 15: AC

characteristics (75 MHz operation, T9HX (0.11 µm) process)).

4.4 Polling during a write, program or erase cycle

A further improv emen t in the write, progr am or erase t ime can be achie v ed b y not waiting fo r

the worst case delay (tPW, tPP

, tPE, or tSE). The write in progress (WIP) bit is provided in the

status register so that the application program can monitor its va lue, polling it to establish

when the previous cycle is complete.

4.5 Reset

An internal power on reset circuit helps protect agains t inadvertent data writes. Addition

protection is provided by driving Reset (Reset) Low during the power-on process, and only

driving it High when VCC has reached the correct voltage level, VCC(min).

4.6 Active power, standby power and deep po wer-down modes

When Chip Select (S) is Low, the device is selected, and in the active power mode.

When Chip Select (S) is High, the d e vice is deselecte d, b ut could remain in the act iv e powe r

mode until all in ternal cycles hav e complet ed (pro gram, era se, write). The device then goes

in to the standby power mode. The device consumption drops to ICC1.

The deep power-do wn mode is en tere d when th e specific in struction (the deep power-do wn

(DP) instruction) is executed. The device consumption drops further to ICC2. The device

remains in this mode until another specific instruction (the release from deep power-down

and read electronic signature (RES) instruction) is executed.

All other instructions are ignored while the de vice is in the deep po wer-do wn mode. This can

be used as an e xtr a sof twa re protectio n mechanism, when the device is not in active use, to

protect the device from inadvertent write, program or erase instructions.

Operating features M45PE10

14/47

4.7 Status register

The status register contains two status bits that can be read by the read status register

(RDSR) instruction. See Section 6.4: Read status regist er (RDSR) f or a detailed description

of the status register bits.

4.8 Protection modes

The environments where non-volatile memory devices are used can be very noisy. No SPI

device can operate corre ct ly in the presence of e xcessive noise. To help combat this, the

M45PE10 features the following data protection mechanisms:

●Power on reset and an internal timer (t PUW) can provide protection ag ainst inadvertent

changes while the power supply is outside the operating specification.

●Program, erase and write instructions are checked that they consist of a number of

clock pulses that is a multiple of eight, before they are accepted for execution.

●All instructions that modify data must be preceded by a write enable (WREN)

instruction to set the write enable latch (WEL) bit. This bit is returned to its reset state

by the following events:

–Power-up

– Reset (Reset) driven Low

– Write disable (WRDI) instruction completion

– Page write (PW) instruction completion

– Page prog ram (PP) instruction completion

– Page erase (PE) instruction completion

– Sector erase (SE) instruction completion

●The hardw are protect ed mode is entered when write protect ( W) is driv en Low, causing

the first 256 pages of memory to become read-only. When write protect (W) is driven

High, the first 256 pages of memory behave like the other pages of memory

●The Reset (Reset) signal can be driven Low to protect the contents of the memory

during any critical time, not just during power-up and power-down

●In addition to the low power consumption feature, the deep power-down mode offers

extra software protection from inadvertent write, program and erase instructions while

the device is not in active use.

M45PE10 Memory organization

15/47

5 Memory organization

The memory is organized as:

●512 pages (256 bytes each)

●131,072 bytes (8 bits each)

●2 sectors (512 Kbits, 65536 bytes each)

Each page can be individually:

●programmed (bits are programmed from 1 to 0)

●erased (bits are erased fro m 0 to 1)

●written (bits are changed to either 0 or 1)

The device is page or sector erasable (bits are erased from 0 to 1).

Table 2. Memory organization

Sector Address range

1 10000h 1FFFFh

0 00000h 0FFFFh

Memory organization M45PE10

16/47

Figure 5. Block diagram

AI07405

WControl logic High voltage

generator

I/O shift register

Address register

and counter 256-byte

data buffer

256 bytes (page size)

X decoder

Ydecoder

Status

00000h

1FFFFh

000FFh

Reset

10000h

First 256 pages can

be made read-only

M45PE10 Instructions

17/47

6 Instructions

All instruct ion s, addresses and dat a are shifted in and out of the device, most significant bit

first.

Serial data input (D) is sampled on the first rising edge of Serial Clock (C) after Chip Select

(S) is drive n L ow. Then, the one-byte instruction code must be shifted in to t he device, most

significant bit first , on serial data input (D), each bit being latched on the rising edges of

Serial Clock (C).

The instruction set is listed in Table 3.

Every instruction sequence starts with a one-byte instruction code. Depe nding on the

instruction, this might be followed by address bytes, or by data bytes, or by both or none.

In the case of a read data bytes (READ), read data bytes at higher speed (FAST_READ) or

read status register (RDSR) instruction, the shifted-in instruction sequence is followed by a

data-out sequence. Chip Select (S ) can be driven High after any bit of the data-out

sequence is being shifted out.

In the case of a page write (PW), page program (PP), page erase (PE), sector erase (SE) ,

write enable (WREN), write disable (WRDI), deep power-down (DP) or release from deep

power-down (RDP) instruction, Chip Select (S) must be driven High exactly at a byte

boundary, otherwise the instruction is rejected, and is no t executed. T hat is, Chip Select (S )

must driven High when the number of clock pulses after Chip Select (S) being driv en Lo w is

an exact multiple of eight.

All attempts to acce ss the memory array during a write cycle, program cycle or era se cycle

are ignored, and the internal write cycle, program cycle or er ase cycle contin ues unaffected.

Table 3. Instruction set

Instruction Description One-by te in str u ction

code Address

bytes Dummy

bytes Data

bytes

WREN Write enable 0000 0110 06h 0 0 0

WRDI Write disable 0000 0100 04h 0 0 0

RDID Read identification 1001 1111 9Fh 0 0 1 to 3

RDSR Read status register 0000 0101 05 h 0 0 1 to ∞

READ Read data bytes 0000 0011 03 h 3 0 1 to ∞

FAST_READ Read data bytes at higher

speed 0000 1011 0Bh 3 1 1 to ∞

PW Page write 0000 1010 0Ah 3 0 1 to 256

PP Page program 0000 0010 02h 3 0 1 to 256

PE Page erase 1101 1011 DBh 3 0 0

SE Sector erase 1101 1000 D8h 3 0 0

DP Deep power-down 1011 1001 B9h 0 0 0

RDP Release from deep

power-down 1010 1011 ABh 0 0 0

Instructions M45PE10

18/47

6.1 Write enable (WREN)

The write enable (WREN) instru ction (Figure 6) sets the write enable latch (WEL) bit.

The write enable latch (WEL) bit must be set prior to every page write (PW), page program

(PP), page erase (PE), and sector erase (SE) inst ruction.

The write enable (WREN) instruction is entered by driving Chip Select (S) Low, sending the

instruction code, an d then driving Chip Select (S) High.

Figure 6. Write enable (WREN) instruction sequence

6.2 Write disable (WRDI)

The write disable (WRDI) instruction (Figure 7) resets the write enable latch (WEL) bit.

The write disable (WRDI) instruction is entered by driving Chip Select (S) Low, sending the

instruction code, an d then driving Chip Select (S) High.

The write enable latch (WEL) bit is reset under the following conditions:

●Power-up

●Write disable (WRDI) instruction completion

●Page write (PW) instr uction completion

●Page program (PP) instruction completion

●Page erase (PE) instruction completion

●Sector erase (SE) instruction completion

Figure 7. Write disable (WRDI) ins truction sequence

AI02281E

21 34567

High Impedance

Instruction

AI03750D

21 34567

High Impedance

Instruction

M45PE10 Instructions

19/47

6.3 Read identification (RDID)

The read identification (RDID) instruction allows to read the device identification data:

●Manufacturer identification (1 byte)

●De vice identification (2 bytes)

●A unique ID code (UID) (17 bytes, of which 16 available upon customer request)(a).

The manu facturer id entifica tion is assigne d by JEDEC , and has t he value 20h for Numonyx.

The device identification is assigned by the device manufa cturer, and indicates the memory

type in the first byte (40h), and the memory capacity of the device in the second byte (11h).

The UID contains the length of the following data in the first byte (set to 10h), and 16 bytes

of the optiona l customized factory data (CFD) content. The CFD bytes are read-only and

can be programmed with customers data upon their demand. If the customers do not make

requests, the devices are shipped with all the CFD bytes programmed to zero (00h).

Any read identification (RDID) instruction while an erase or program cycle is in progress, is

not decoded, and has no effect on the cycle that is in progress.

The device is first selected by driving Chip Select (S) Low. Then, the 8-bit instruction code

for the instruction is shifted in. After this, the 24-bit device identification, stored in the

memory, the 8-bit CFD length followed by 16 bytes of CFD content will be shifted out on

serial data output (Q). Each bit is shifted out during the falling edge of Serial Clock (C).

The instruction sequence is shown in Figure 8.

The Read Identification (RDID) instruction is terminated by driving Chip Select (S) High at

any time during data output.

When Chip Select (S) is driven High, the device is put in the standby power mode. Once in

the standb y po w er mode , the device waits to be select ed, so that it can receive, decode and

execute instructions.

a. The 17 bytes of unique ID code are available only in the T9HX process (see Important note on

page 6).

Table 4. Read identification (RDID) data-out sequence

Manufacturer

Identification

Device Identification UID(1)

Memory type Memory capacity CFD length CFD content

20h 40h 11h 10h 16 bytes

1. The unique ID code is available only in the T9HX process (see Important note on page 6).

Instructions M45PE10

20/47

Figure 8. Read identification (RDID) instruction sequence and data-out sequen ce

1. The unique ID code is available only in the T9HX process (see Important note on page 6).

6.4 Read status register (RDSR)

The read stat us register ( RDSR) instruction allo ws the status register to be read. The status

When one of these cycles is in progress, it is recommended to check the write in progress

(WIP) bit before sending a ne w inst ruction to the de vice . It is al so possible to read the status

The status bits of the status register are as follows:

6.4.1 WIP bit

The write in progress (WIP) bit indicates whether the memory is busy with a write, program

or erase cycle . When set t o ‘1’, such a cycle is in prog ress, when re set to ‘0’ no such cycle is

in progress.

6.4.2 WEL bit

The write enable la tch (WEL) bit indicates t he status of the internal write enable latc h. When

set to ‘1’ the internal write enable latch is set, when set to ‘0’ the internal write enable latch is

reset and no write, program or erase instruction is accepted.

213456789101112131415

Instruction

AI06809c

Manufacturer identification

High Impedance

MSB

Device identification

MSB

15 14 13 3 2 1 0

16 17 18 28 29 30 31

MSB

UID

Table 5. Status register format

b7 b0

0 0 0 0 0 0 WEL

(1)

1. WEL and WIP are volatile read-only bits (WEL is set and reset by specific instructions; WIP is

automatically set and reset by the internal logic of the device).

WIP(1)

M45PE10 Instructions

21/47

Figure 9. Read status re gister (RDSR) instruc tion sequence and da ta-out seque nce

6.5 Read data bytes (READ)

The de vice is first selected by driving Chip Select (S) Low. The in st ruction co de for the read

data bytes (READ) instruction is followed by a 3-byte address (A23-A0), each bit being

latched-in during the rising edge of Serial Clock (C). Then the memory contents, at t hat

address, is shifted out on serial data output (Q), each bit being shifted out, at a maximum

frequency fR, during the falling edge of Serial Clock (C).

The instruction sequence is shown in Figure 10.

The first byte addressed can be at any location. The address is automatically incremented

to the next higher addre ss after each b yte of data is shifted out. The whole memory can,

therefore, be read with a single read data bytes (READ) instruction. When the highest

address is reached, the address counter rolls over to 000000h, allowing the read sequence

to be continued indefinitely.

The read data bytes (READ) instruction is terminated by driving Chip Select (S) High. Chip

select (S) can be driven High at any time during data output. Any read data bytes (READ)

instruction, while an erase, program or write cycle is in progress, is rejected without having

any effects on the cycle that is in progress.

21 3456789101112131415

Instruction

AI02031E

Q76543210

Status Register Out

High Impedance

MSB

76543210

Status Register Out

MSB

Instructions M45PE10

22/47

Figure 10. Read data bytes (READ) instruction sequence and data-o ut sequence

1. Address bits A23 to A17 are don’t care.

AI03748D

21 345678910 2829303132333435

2221 3210

36 37 38

76543 1 7

High Impedance Data out 1

Instruction 24-bit address

MSB

Data out 2

M45PE10 Instructions

23/47

6.6 Read data bytes at higher speed (FAST_READ)

The de vice is first selected by driving Chip Select (S) Low. The in st ruction co de for the read

data bytes at higher speed (FAST_READ) instruction is followed by a 3-byte address (A23-

A0) and a dummy byte, each bit being latched-in during the rising edge of Serial Clock (C).

Then the memory contents , at that ad dress , is shift ed out on serial data ou tput (Q), ea ch bit

being shifted out, at a maximum frequency fC, during the falling edge of Serial Clock (C).

The instruction sequence is shown in Figure 11.

The first byte addressed can be at any location. The address is automatically incremented

to the next higher addre ss after each b yte of data is shifted out. The whole memory can,

therefore, be read with a single read data bytes at higher speed (FAST_READ) instruction.

When the highest add ress is reached, the addre ss counter rolls over to 000000h, allowing

the read sequence to be continued indefinitely.

The read data b ytes at higher speed (FAST_READ) instruction is terminated by driving Chip

Select (S) High. Chip select (S) can be driv e n High at an y time during data output . An y read

data bytes at higher speed (FAST_READ) instruction, while an erase, progr am or write cycle

is in progress, is rejected without having any effects on the cycle that is in progress.

Figure 11. Read data bytes at higher speed (FAST_READ) instruction sequence

and data-out sequence

1. Address bits A23 to A17 are don’t care.

AI04006

21 345678910 28293031

2221 3210

High Impedance

Instruction 24-bit address

32 33 34 36 37 38 39 40 41 42 43 44 45 46

765432 0

DATA OUT 1

Dummy byte

MSB

76543210

DATA OUT 2

MSB MSB

765432 0

Instructions M45PE10

24/47

6.7 Page write (PW)

The page write (PW) instruction allows by tes to be written in the me m ory. Before it can be

accepted, a write enabl e (WREN) instruction must pre viously ha ve been e xecuted. After the

write enable (WREN) instruction has been decoded, the device sets the write enable latch

(WEL).

The page write (PW) instruction is entered by driving Chip Select (S) Low, followed by the

instruction code , three addres s bytes a nd at least one data b yte on serial data inpu t (D). The

rest of the page remains unchanged if no power failure occurs during this write cycle.

The page write (PW) instruction performs a page erase cycle e ven if only one byte is

updated.

If the 8 least significant addre s s bits (A7 -A0) are no t all zero, all transmitte d data exceeding

the addressed page boundary wrap r ound, and are written from the start address of the

same page (the one whose 8 least significant a ddress bits (A7-A0) are all z ero). Chip Select

(S) must be driven Low for the entire duration of the sequen ce.

The instruction sequence is shown in Figure 12.

If more tha n 256 bytes are sent t o the device, previously latched dat a ar e discard ed an d th e

last 256 data b yt es are guar antee d to be written correctly with in the sa me page . If less than

256 data bytes are sent to device, they are correctly written at the req uested addresses

without having any effects on the other bytes of the same page.

For optimized timings, it is recommended to use the page write (PW) instruction to write all

consecutive targeted bytes in a single sequence versus using several page write (PW)

sequences with each containing only a few bytes (see Table AC characteristics (50 MHz

operation) and Table 15: AC characteristics (75 MHz operation, T9HX (0.11 µm) process)).

Chip Select (S) must be driven High after the eighth bit of the last data byte has been

latched in, otherwise the page write (PW) instruction is not executed.

As soon as Chip Select (S) is driv en High, the self- timed page write cycle (whose duration is

tPW) is initiated. Whil e the p age write cycle is in prog ress , the st atus regi ster may be read to

chec k the v a lue of the write in prog ress (WIP ) bit. The write in prog ress (WIP) bit is 1 during

the self-timed page write cycle, and is 0 when it is completed. At some unspecified time

before the cycle is complete, the write enable latch (WEL) bit is reset.

A page write (PW) instruction applied to a page that is hard ware protected is not executed.

Any page write (PW) instructio n, while an erase, program or write cycle is in progress, is

rejected without having any effects on the cycle that is in progress.

M45PE10 Instructions

25/47

Figure 12. Page write (PW) instruction sequence

1. Address bits A23 to A17 are don’t care.

2. 1 ≤ n ≤ 256.

AI04045

4241 43 44 45 46 47 48 49 50 52 53 54 5540

21 345678910 2829303132333435

2221 3210

36 37 38

Instruction 24-bit address

765432 0

Data byte 1

765432 0

Data byte 2

765432 0

Data byte 3 Data byte n

765432 0

MSB MSB

MSB MSB MSB

Instructions M45PE10

26/47

6.8 Page program (PP)

The page prog ram (PP) instruction allo ws bytes to be pr ogrammed in the m emory (changing

bits from 1 to 0, only). Before it can be accepted, a Write Enable (WREN) instruction must

previously have been executed. After the write enable (WREN) instruction has been

decoded, the device sets the write enable latch (WEL).

The page prog ram (PP) instruction is entered b y driving Chip Select (S) Low, f ollowed by the

instruction code, three address bytes and at least one data byte on serial data input (D). If

the 8 least significant address bits ( A7-A0) are not all zero, all transmitted data exceeding

the addressed page boundary wrap round, and are programmed from the start address of

the same page (the one whose 8 least significant address bits (A 7-A0) are all zero). Chip

Select (S) must be driven Low for the entire duration of the sequence.

The instruction sequence is shown in Figure 13.

If more tha n 256 bytes are sent t o the device, previously latched dat a ar e discard ed an d th e

last 256 dat a bytes ar e guaranteed to be progr ammed corr ectly within the same pag e. If less

than 256 data bytes are sent to device, they are correctly programmed at the requested

addresses without having any effects on the other bytes of the same page.

F or optimized timings, it is recommended to use the page program (PP) instruction to

program all consecutive targeted bytes in a single sequence versus using several page

program (PP) sequences with each containing only a few bytes (see Table 14: AC

characteristics (50 MHz operation) and Table 15: AC characteristics (75 MHz operation,

T9HX (0.11 µm) process)).

Chip Select (S) must be driven High after the eighth bit of the last data byte has been

latched in, otherwise the page program (PP) instruction is not executed.

As soon as Chip Select (S) is driven High, the self-timed page program cycle (whose

duration is tPP) is initiated. While the page program cycle is in progress, the status register

may be read to check the value of the write in progress (WIP) bit. The write in progress

(WIP) bit is 1 during the self-timed page program cycle, and is 0 when it is completed. At

some unspecified time bef ore the cycle is co mplete, the write enab le latch (WEL) bit is r eset.

A page program (PP) instruction applied to a page that is hardware protected is not

executed.

Any page pr ogram (PP) inst ruction, while an erase, program or write cycle is in progress, is

rejected without having any effects on the cycle that is in progress.

M45PE10 Instructions

27/47

Figure 13. Page program (PP) instruction sequence

1. Address bits A23 to A17 are don’t care.

2. 1 ≤ n ≤ 256.

AI04044

4241 43 44 45 46 47 48 49 50 52 53 54 5540

21 345678910 2829303132333435

2221 3210

36 37 38

Instruction 24-bit address

765432 0

Data byte 1

765432 0

Data byte 2

765432 0

Data byte 3 Data byte n

765432 0

MSB MSB

MSB MSB MSB

Instructions M45PE10

28/47

6.9 Page erase (PE)

The page erase (PE) instruction sets to ‘1’ (FFh) all bits inside the chosen pa ge. Before it

can be accepted, a write enable (WREN) instruction must previously have been executed.

After the write enable (WREN) instruction has been decoded, the device sets the write

enable latch (WEL).

The page erase (PE) instruction is entered by driving Chip Select (S) Low, followed by the

instruction code, and three address bytes on serial data input (D). Any address inside the

page is a valid address for the page erase (PE) instruction. Chip Select (S) must be driven

Low for the entire duration of the sequence.

The instruction sequence is shown in Figure 14.

Chip Select (S) must be driven High after the eighth bit of the last address byte has been

latched in, otherwise the page erase (PE) instruction is not executed. As soon as Chip

Select (S) is driven High, the self -timed page er ase cycle (wh ose duratio n is tPE) is initiated.

While the page er ase cycle is in progress , the status register may be read to check th e value

of the write in progress (WIP) bi t. The write in progress (WIP) bit is 1 during the self-timed

page erase cycle, and is 0 when it is completed. At some unspecified time before the cycle

is complete, the write enable latch (WEL) bit is reset.

A page erase (PE) instruction applied to a page that is hardware protected is not executed.

Any page erase (PE) instruction, while an erase, program or write cycle is in progress, is

rejected without having any effects on the cycle that is in progress.

Figure 14. Page erase (PE) instruction sequence

1. Address bits A23 to A17 are don’t care.

24-bit address

AI04046

21 3456789 293031

Instruction

23 22 2 0

MSB

M45PE10 Instructions

29/47

6.10 Sector erase (SE)

The sector er a se (SE) instruction sets to ‘1’ (FF h) all bits inside th e chosen sector. Before it

can be accepted, a write enable (WREN) instruction must previously have been executed.

After the write enable (WREN) instruction has been decoded, the device sets the write

enable latch (WEL).

The sector erase (SE) instruction is entered by driving Chip Select (S) Low, followed by the

instruction code, and three address bytes on serial data input (D). Any address inside the

sector (see Table 2) is a valid address for the sector erase (SE) instruction. Chip Select (S)

must be driven Low for the entire duration of the sequence.

The instruction sequence is shown in Figure 15.

Chip Select (S) must be driven High after the eighth bit of the last address byte has been

latched in, otherwise the sector erase (SE) instruction is not executed. As soon as Chip

Select (S) is driven High, the self-timed sector erase cycle (whose duration is tSE) is

initiated. While the sector erase cycle is in progress, the stat us register may be read to

chec k the v a lue of the write in prog ress (WIP ) bit. The write in prog ress (WIP) bit is 1 during

the self-timed sector erase cycle, and is 0 when it is completed. At some unspecified time

before the cycle is complete, the write enable latch (WEL) bit is reset.

A sector erase (SE) instruction applied to a sector that co ntains a page that is Hardware

Protected is not executed.

Any sector erase (SE) instruction, while an erase, program or write cycle is in progress, is

rejected without having any effects on the cycle that is in progress.

Figure 15. Sector erase (SE) instruction sequence

1. Address bits A23 to A17 are don’t care.

24-bit address

AI03751D

21 3456789 293031

Instruction

23 22 2 0

MSB

Instructions M45PE10

30/47

6.11 Deep power-down (DP)

Executing the deep power-down (DP) instruction is the only way to put the device in the

lowest consumption mode (the deep power-down mode). It can also be used as an extra

softwar e protecti on mechanism, wh ile the device is not in activ e use , since in t his mode , the

device ignores all write, program and erase instructions.

Driving Chip Select (S) High deselects the device, and puts the device in the standby power

mode (if there is no internal cycle currently in progress). But this mode is not the deep

pow er-do wn mode . The deep po we r-do wn mode can only be ente red by e x ecutin g the deep

power-down (DP) instruction, to reduce the standby current (from ICC1 to ICC2, as specified

in Table 11).

Once the device has entered the deep power-down mode, all instructions are ignored

except the release from deep power-down (RDP) instruction. This releases the device from

this mode.

The deep power-down mode automatically stops at power-down, and the device always

powers-up in the standby power mode.

The deep power-down (DP) instruction is entered by driving Chip Select (S) Low, followed

by the instruction code on Serial Data input (D). Chip Select (S) must be driven Low for the

entire duration of the sequence.

The instruction sequence is shown in Figure 16.

Chip Select (S) must be driven High after the eighth bit of the instruction code has been

latched in, otherwise the deep power-down (DP) instruction is not executed. As soon as

Chip Select (S) is driven High, it requires a delay of tDP before t he su pply curr ent is r educed

to ICC2 and the deep power-down mode is entered.

Any deep power-down (DP) instruction, while an erase, program or write cycle is in

progress, is rejected without having any effects on the cycle that is in progress.

Figure 16. Deep power-down (DP) instruction sequence

AI03753D

21 345670t

Deep power-down mode

Standby mode

Instruction

M45PE10 Instructions

31/47

6.12 Release from deep power-down (RDP)

Once the device has entered the deep power-down mode, all instructions are ignored

except the release from deep power-down (RDP) instruction. Executing this instruction

takes the device out of the deep power-down mode.

The release from deep power-down (RDP) inst ruction is entered by driving Chip Select (S)

Low, followed by the instruction code on Serial Data input (D). Chip Select (S) must be

driven Low for the entire duration of the sequence.

The instruction sequence is shown in Figure 17.

The release from de ep power-down (RDP) instruction is terminated by driving Chip Select

(S) High. Sending additional clock cycles on Serial Cloc k (C), while Chip Select (S) is driven

Low, cause the instruction to be rejected, and not executed.

After Chip Select (S) has been driv en High, follow ed b y a de la y, tRDP

, the de vice is put in the

Standb y P ow er mode. Chip Select (S) must remain High at least until this period is ov er . The

device waits to be selected, so that it can receive, decode and execute instructions.

Any release from deep power-down (RDP) instruction, while an erase, program or write

cycle is in progress, is rejected without having any effects on the cycle that is in progress.

Figure 17. Release from deep power-down (RDP) instruction sequence

AI06807

21 345670t

RDP

Standby mode

Deep power-down mode

QHigh Impedance

Instruction

Power-up and power-down M45PE10

32/47

7 Power-up and power-down

At power-up and po w e r-down, the device must not b e se lected ( that is Chip Select ( S) m ust

follow the voltage applied on VCC) until VCC reaches the correct value:

●VCC(min) at power-up, and then for a further delay of tVSL

●VSS at power-dow n

A safe configuration is provided in Section 3: SPI modes.

To av oid data corruption and inadv ertent write operations during po wer up , a po wer on reset

(POR) circuit is includ ed. T he logic in side th e d evice is held reset wh ile VCC is less than the

power on reset (POR) threshold value, VWI – all operations are di sabled, and th e device

does not respond to any instruction.

Moreo ver , the device ig nores all write enable (WREN), page write (PW), page prog ram (PP),

page erase (PE) and sector erase (SE) instructions until a time delay of tPUW has elapsed

after the moment that VCC rises above the VWI threshold. However, the correct operation of

the device is not guaranteed if, b y this time, VCC is still below VCC(min). No write, program or

erase instructions should be sent until the later of:

●tPUW after VCC passed the VWI threshold

●tVSL after wrap round VCC passed the VCC(min) level

These values are specified in Table 6.

If the delay, tVSL, has elapsed, after VCC has risen above VCC(min), the device can be

selected for read instructions even if the tPUW delay is not yet fully elapsed.

As an extra protect ion, the Reset ( Reset ) sig nal can be driven Low for the whole duratio n of

the power-up and power-down phases.

At power-up, the device is in the following state:

●The device is in the standby power mode (not the deep power-down mode)

●The write enab le latch (WEL) bit is reset

●The write in progress (WIP) bit is reset

Normal precautions must be taken for supply rail decoupling, to stabilize the VCC supply.

Each de vice in a system should ha v e the VCC line decoupled by a suitable capacitor close to

the package pins (generally, this capacitor is of the order of 100 nF).

At power-down, when VCC drops from the operating voltage, to below the power on reset

(POR) threshold value, VWI, all operations are disabled and the device does not respond to

any instruction (the designer needs to be aware that if a power-down occurs while a write,

program or erase cycle is in progress , some data corruption can result).

M45PE10 Power-up and power-down

33/47

Figure 18. Power-up timing

Table 6. Power- up timing and VWI threshold

Symbol Parameter Min. Max. Unit

tVSL(1)

1. These parameters are characterized only, over the temperature range –40 °C to +85 °C.

VCC(min) to S low 30 µs

tPUW(1) Time delay before the first write, program or erase instruction 1 10 ms

VWI(1) Write inhibit voltage 1.5 2.5 V

VCC

AI04009C

VCC(min)

VWI

Reset state

of the

device

Chip selection not allowed

Program, erase and write commands are rejected by the device

tVSL

tPUW

time

Read access allowed Device fully

accessible

VCC(max)

Initial delivery state M45PE10

34/47

8 Initial delivery state

The device is delivered with the memory array erased: all bits are set to ‘1’ (each byte

contains FFh). All usa ble status regis ter bits ar e 0.

9 Maximum ratings

Stressing the device outside the ratings listed in Table 7: Absolute maximum ratings may

cause permanent damage to the device. These are stre ss ratings only, and operation of the

device at these, or any other conditions outside those indicated in the operating sections of

this specification, is not implied. Exposure to absolute maxim um rating conditions for

extended periods may affect device reliability.

Table 7. Absolute maximum ratings

Symbol Parameter Min. Max. Unit

TSTG Storage temperature –65 150 °C

TLEAD Lead temperature during soldering See note (1)

1. Compliant with JEDEC Std J-STD-020C (for small body, Sn-Pb or Pb assembly), the Numonyx

ECOPACK® 7191395 specification, and the European directive on Restrictions on Hazardous Substances

(RoHS) 2002/95/EU.

°C

VIO Input and output voltage (wi th respect to ground) –0.6 VCC + 0.6 V

VCC Supply voltage –0.6 4.0 V

VESD Electrostatic discharge voltage (human body model) (2)

2. JEDEC Std JESD22-A114A (C1=100 pF, R1=1500 Ω, R2=500 Ω).

–2000 2000 V

M45PE10 DC and AC parameters

35/47

10 DC and AC parameters

This section summarizes the operating and measurement conditions, and the DC and AC

characteristics of the device. Th e parameters in the DC and AC characteristic tables that

follow are derived from tests performed under the measurement conditions summarized in

the relevant tables. Designers should check that the operating conditions in their circuit

match the measurem ent conditions when relying on the quoted parameters.

1. Output Hi-Z is defined as the point where data out is no longer driven.

Figure 19. AC measurement I/O waveform

Table 8. Operating conditions

Symbol Parameter Min. Max. Unit

VCC Supply voltage 2.7 3.6 V

TAAmbient operating temperature –40 85 °C

Table 9. AC measurement conditions

Symbol Parameter Min. Max. Unit

CLLoad capacitance 30 pF

Input rise and fall times 5 ns

Input pulse voltages 0.2VCC to 0.8VCC V

Input and output timing reference voltages 0.3VCC to 0.7VCC V

Table 10. Capacitance(1)

1. Sampled only, not 100% tested, at TA=25 °C and a frequency of 33 MHz.

Symbol Parameter Test condition Min. Max. Unit

COUT Output capacitance (Q) VOUT = 0 V 8 pF

CIN Input capacitance (other pins) VIN = 0 V 6 pF

AI00825B

0.8VCC

0.2VCC

0.7VCC

0.3VCC

Input and output

timing reference levels

Input levels

DC and AC parameters M45PE10

36/47

Table 11. DC characteristics

Symbol Parameter Test condition

(in addition to those in Table 8)Min. Max. Unit

ILI Input leakage current ± 2 µA

ILO Output leakage current ± 2 µA

ICC1

Standby current

(standby and reset

modes) S = VCC, VIN = VSS or VCC 50 µA

ICC2 Deep power-down

current S = VCC, VIN = VSS or VCC 10 µA

ICC3 Operating current

(FAST_READ)

C = 0.1VCC / 0.9.VCC at 33 MHz,

Q = open 4mA

C = 0.1VCC / 0.9.VCC at 75 MHz,

Q = open 12

ICC4 Operating current (PW) S = VCC 15 mA

ICC5 Operating current (SE) S = VCC 15 mA

VIL Input low voltage – 0.5 0.3VCC V

VIH Input high voltage 0.7VCC VCC+0.4 V

VOL Output low voltage IOL = 1.6 mA 0.4 V

VOH Output high voltage IOH = –100 µA VCC–0.2 V

M45PE10 DC and AC parameters

37/47

Table 12. AC characteristic s (25 MHz operation)

Test conditions specified in Table 8 and Table 9

Symbol Alt. Parameter Min. Typ. Max. Unit

fCfC

Clock frequency for the following

instructions: FAST_READ, PW, PP, PE,

SE, DP, RDP, WREN, WRDI, RDSR D.C. 25 MHz

fRClock frequency for Read instructi ons D.C. 20 MHz

tCH(1)

1. tCH + tCL must be greater than or equal to 1/ fC(max).

tCLH Clock High time 18 ns

tCL(1) tCLL Clock Low time 18 ns

Clock slew rate (2) (peak to peak)

2. Value guaranteed by characterization, not 100% tested in production.

0.03 V/ns

tSLCH tCSS S active setup time (relative to C) 10 ns

tCHSL S not active hold time (relative to C) 10 ns

tDVCH tDSU Data in setup time 5 ns

tCHDX tDH Data in hold time 5 ns

tCHSH S active hold time (relative to C) 10 ns

tSHCH S not active setup time (relative to C) 10 ns

tSHSL tCSH S deselect time 200 ns

tSHQZ(2) tDIS Output disable time 15 ns

tCLQV tVClock Low to Output valid 15 ns

tCLQX tHO Output hold time 0 ns

tRLRH(2) tRST Reset pulse width 10 µs

tRHSL tREC Reset recovery time 3 µs

tSHRH Chip should have been deselected

before Reset is de-asserted 10 ns

tWHSL Write protect setup time 50 ns

tSHWL Write protect hold time 100 ns

tDP(2) S to deep power-down 3 µs

tRDP(2) S High to standby power mode 30 µs

tPW(3)

3. When using PP and PW instructions to update consecutive bytes, optimized timings are obtained with one

sequence including all the bytes versus several sequences of only a few bytes (1 ≤ n ≤ 256).

Page write cycle time (256 bytes) 11 25 ms

Page write cycle time (n bytes) 10.2+

n*0.8/256

tPP(3) Page program cycle time (256 bytes) 1.2 5ms

Page program cycle time (n bytes) 0.4+

n*0.8/256

tPE Page erase cycle time 10 20 ms

tSE Sector erase cycle time 1 5 s

DC and AC parameters M45PE10

38/47

Table 13. AC characteristic s (33 MHz operation)

33 MHz only av ailable for products marked since week 40 of 2005(1)

Test conditions specified in Table 8 and Table 9

1. Details of how to find the date of marking are given in application note, AN1995.

Symbol Alt. Parameter Min. Typ. Max. Unit

fCfC

Clock frequency for the following

instructions: FAST_READ, PW, PP, PE,

SE, DP, RDP, WREN, WRDI, RDSR D.C. 33 MHz

fRClock frequency for READ instructions D.C. 20 MHz

tCH(2)

2. tCH + tCL must be greater than or equal to 1/ fC.

tCLH Clock High time 13 ns

tCL(2) tCLL Clock Low time 13 ns

Clock slew rate(3) (peak to peak)

3. Value guaranteed by characterization, not 100% tested in production.

0.03 V/ns

tSLCH tCSS S active setup time (relative to C) 10 ns

tCHSL S not active hold time (relative to C) 10 ns

tDVCH tDSU Data in setup time 3 ns

tCHDX tDH Data in hold time 5 ns

tCHSH S active hold time (relative to C) 5 ns

tSHCH S not active setup time (relative to C) 5 ns

tSHSL tCSH S deselect time 200 ns

tSHQZ(3) tDIS Output disable time 12 ns

tCLQV tVClock Low to Output valid 12 ns

tCLQX tHO Output hold time 0 ns

tTHSL Top Sector Lock setup time 50 ns

tSHTL Top Sector Lock hold time 100 ns

tDP(3) S to deep power-down 3 µs

tRDP(3) S High to standby power mode 30 µs

tPW(4)

4. When using PP and PW instructions to update consecutive bytes, optimized timings are obtained with one

sequence including all the bytes versus several sequences of only a few bytes (1 ≤ n ≤ 256).

Page write cycle time (256 bytes) 11 25 ms

Page wri te cycle time (n bytes) 10.2+

n*0.8/256

tPP(4) Page program cycle time (256 bytes) 1.2 5ms

Page program cycle time (n bytes) 0.4+

n*0.8/256

tPE Page erase cycle time 10 20 ms

tSE Sector erase cycle time 1 5 s

M45PE10 DC and AC parameters

39/47

Table 14. AC characteristics (50 MHz operation)

50 MHz operation for T9HX technology(1)

Test conditions specified in Table 8 and Table 9

Symbol Alt. Parameter Min. Typ. Max. Unit

fCfC

Clock frequency for the following instructions:

FAST_READ, PW, PP, PE, SE, DP, RDP,

WREN, WRDI, RDSR, RDID D.C. 50 MHz

fRClock frequency for read instructions D.C. 33 MHz

tCH(2) tCLH Clock High time 9 ns

tCL(2) tCLL Clock Lo w time 9 ns

Clock slew rate(3) (peak to peak) 0.1 V/ns

tSLCH tCSS S active setup time (relative to C) 5 ns

tCHSL S not active hold time (relative to C) 5 ns

tDVCH tDSU Data in setup time 2 ns

tCHDX tDH Data in hold time 5 ns

tCHSH S active hold time (relative to C) 5 ns

tSHCH S not active setup time (relative to C) 5 ns

tSHSL tCSH S deselect time 100 ns

tSHQZ(3) tDIS Output disable time 8 ns

tCLQV tVClock Low to Output v alid 8 ns

tCLQX tHO Output hold time 0 ns

tWHSL Write protect setup time 50 ns

tSHWL Write protect hold time 100 ns

tDP(3) S to deep power-down 3 µs

tRDP(3) S High to standby mode 30 µs

tRLRH(3) tRST Reset pulse width 10 µs

tRHSL tREC Reset recovery time 3 µs

tSHRH Chip should have been deselected before

Reset is de-asserted 10 ns

tPW(4) Page write cycle time (256 bytes) 11 23 ms

tPP(4) Page program cycle time (256 bytes) 0.8 3ms

Page program cycle time (n bytes) int(n/8) × 0.025

tPE Page erase cycle time 10 20 ms

tSE Sector erase cycle time 1.5 5 s

1. Delivery of parts in T9HX process to start from August 2007.

2. tCH + tCL must be greater than or equal to 1/ fC.

3. Value guaranteed by characterization, not 100% tested in production.

4. n = number of bytes to program. int(A) corresponds to the upper integer part of A. Examples: int(1/8) = 1, int(16/8) = 2,

int(17/8) = 3.

DC and AC parameters M45PE10

40/47

Table 15. AC characteristics (75 MHz operation, T9HX (0.11 µm) process(1))(2)

Test conditions specified in Table 8 and Table 9

Symbol Alt. Parameter Min. Typ. Max. Unit

fCfC

Clock frequency f or the follo wing instructions:

FAST_READ, PW, PP, PE, SE, DP, RDP,

WREN, WRDI, RDSR, RDID D.C. 75 MHz

fRClock frequency for read instructions D.C. 33 MHz

tCH(3) tCLH Clock High time 6 ns

tCL(3) tCLL Clock Lo w time 6 ns

Clock slew rate(3) (peak to peak) 0.1 V/ns

tSLCH tCSS S active setup time (relative to C) 5 ns

tCHSL S not active hold time (relative to C) 5 ns

tDVCH tDSU Data in setup time 2 ns

tCHDX tDH Data in hold time 5 n s

tCHSH S active hold time (relative to C) 5 ns

tSHCH S not active setup time (relati ve to C) 5 ns

tSHSL tCSH S deselect time 100 ns

tSHQZ(4) tDIS Output disable time 8 ns

tCLQV tVClock Lo w to Output valid 8 ns

tCLQX tHO Output hold time 0 ns

tWHSL(5) Write protect setup time 20 ns

tSHWL(5) Write protect hold time 100 ns

tDP(3) S to deep power-down 3 µs

tRDP(3) S High to standby mode 30 µs

tWWrite status register cycle time 3 15 ms

tPW(6) Page write cycle ti me (256 bytes) 11 23 ms

tPP(6) Page program cycle time (256 bytes) 0.8 3ms

Page program cycle time (n bytes) int(n/8) × 0.025(7)

tPE Page erase cycle time 10 20 ms

tSE Sector erase cycle time 1.5 5 s

tSSE Subsector erase cycle time 80 150 ms

tBE Bulk erase cycle time 4.5 10 s

1. See Important note on page 6.

2. Details of how to find the technology process in the marking are given in AN1995, see also Section 12: Ordering

information.

3. tCH + tCL must be greater than or equal to 1/ fC.

4. Value guaranteed by characterization, not 100% tested in production.

5. Only applicable as a constraint for a WRSR instruction when SRWD is set to ‘1’.

6. When using PP and PW instructions to update consecutive bytes, optimized timings are obtained with one sequence

including all the bytes versus several sequences of only a few bytes (1 ≤ n ≤ 256).

7. int(A) corresponds to the upper integer part of A. For instance, int(12/8) = 2, int(32/8) = 4 int(15.3) =16.

M45PE10 DC and AC parameters

41/47

Figure 20. Serial input timing

Figure 21. Write Protect setup and hold timing

AI01447C

MSB IN

tDVCH

High Impedance

LSB IN

tSLCH

tCHDX

tCHCL

tCLCH

tSHCH

tSHSL

tCHSHtCHSL

High Impedance

tWHSL tSHWL

AI07439

DC and AC parameters M45PE10

42/47

Figure 22. Output timing

Figure 23. Reset AC waveforms

AI01449e

LSB OUT

DADDR.LSB IN

tSHQZ

tCH

tCL

tQLQH

tQHQL

tCLQX

tCLQV

tCLQX

tCLQV

AI06808

Reset tRLRH

tRHSLtSHRH

M45PE10 Package mechanical

43/47

11 Package mechanical

In order to mee t en viron mental requir ements , Numo nyx o ff er s these devices in ECOPA CK®

packages. ECOPACK® packages are lead-free. The category of second level interconnect

is marked on the package and on the inner box label, in compliance with JEDEC Standard

JESD97. The maximum r atings related t o soldering conditions are also marked on the inner

box label.

Figure 24. SO8N – 8 lead plastic small outline, 150 mils body widt h, package outline

1. Drawing is not to scale.

Table 16. SO8N – 8 lead plastic small outline, 150 mils body width, package

mechanical data

Symbol millimeters inches

Typ Min Max Typ Min Max

A1.750.069

A1 0.10 0.25 0.004 0.010

A2 1.25 0.049

b 0.28 0.48 0.011 0.019

c 0.17 0.23 0.007 0.009

ccc 0.10 0.004

D 4.90 4.80 5.00 0.193 0.189 0.197

E 6.00 5.80 6.20 0.236 0.228 0.244

E1 3.90 3.80 4.00 0.154 0.150 0.157

e1.27– –0.050– –

h 0.25 0.50 0.010 0.020

k0°8°0°8°

L 0.40 1.27 0.016 0.050

L1 1.04 0.041

SO-A

ccc

h x 45˚

0.25 mm

GAUGE PLANE

Package mechanical M45PE10

44/47

Figure 25. MLP8, 8-lead very thin dual flat package no lead, 6 × 5 mm, package

outline

1. Drawing is not to scale.

Table 17. MLP8, 8-lead very thin dual flat package no lead , 6 × 5 mm, packa ge

mechanical data

Symbol millimeters inches

Typ Min Max Typ Min Max

A 0.85 0.80 1.00 0.033 0.031 0.039

A1 0.00 0.05 0.000 0.002

A2 0.65 0.026

A3 0.20 0.008

b 0.40 0.35 0.48 0.016 0.014 0.019

D6.00 0.236

D1 5.75 0.226

D2 3.40 3.20 3.60 0.134 0.126 0.142

E5.00 0.197

E1 4.75 0.187

E2 4.00 3.80 4.30 0.157 0.150 0.169

e1.27– –0.050– –

R1 0.10 0.00 0.004 0.000

L 0.60 0.50 0.75 0.024 0.020 0.029

Θ12° 12°

aaa 0.15 0.006

bbb 0.10 0.004

ddd 0.05 0.002

70-ME

AA3

eE2

ddd

bbb

CAB

aaa CAA

aaa CB

0.10 CA

0.10 CB

M45PE10 Ordering information

45/47

12 Ordering information

F or a list of a vailab le optio ns (speed, pac ka ge , etc.), for further information on an y aspect of

this device or when ordering parts operatin g at 75 MHz (0.11 µm technology, process digit

‘4’), please contact your nearest Numonyx sales office.

Table 18. Ordering information scheme

Example: M45PE10 – V MP 6 T G

Device type

M45PE = serial flash memory for data storage

Device function

10 = 1-Mbit (128 Kbit × 8)

Operatin g voltage

V = VCC = 2.7 V to 3.6 V

Package

MN = SO8 (150 mil width)

MP = VDFPN8 6 × 5 mm (MLP8)

Device grade

6 = Industrial temperature range, –40 to 85 °C.

Device tested with standard test flow

Option

blank = standard packing

T = tape and reel packing

Plating technology

P or G = ECOPACK® (RoHS compliant)

Revision history M45PE10

46/47

13 Revision history

Table 19. Document revision history

Date Version Changes

29-Apr-2003 1.0 Initial release.

04-Jun-2003 1.1 Description corrected of entering hardware protected mode (W must be

driven, and cannot be left unconnected).

04-Dec-2003 1.2 VIO(min) extended to –0.6 V, tPW(typ) and tPP(typ) improved. Table of

contents, warning about exposed paddle on MLP8, and lead-free

options added. Cha nge of naming for VDFPN8 package.

25-Jun-2004 1.3 Soldering temperature information clarified f or RoHS compliant devices.

Device grade clarified.

22-Sep-2004 2.0 Document promoted to preli minary data. Minor wording changes

08-Oct-2004 3.0 Document promoted to mature datasheet. No other changes

4-Oct-2005 4.0

Added AC characteristics (33 MHz operation). An easy way to modify

data, A fast way to modify data, Page write (PW) and Page program

(PP) sections updated to explain optimal use of page write and page

program instructions. Updated ICC3 v alues in Table 11: DC

characteristics. Updated Table 18: Ordering information scheme. Added

ECOPACK® information.

02-Feb-2007 5

Document reformatted. 50 MHz frequency added (Table 14 added).

VCC supply voltage and VSS ground descriptions added.

Figure 4: SPI modes supported modified an d explanatory text added.

VIO max modified in Table 7: Absolute maximum ratings.

At power-up, The write in progress (WIP) bit is reset

tSHQZ end timing line modified in Figure 22: Output timing.

Blank option removed below Plating technology in Table 18: Ordering

information scheme. Small text changes.

Package specifications updated (see Section 11: Package mechanical).

21-Feb-2008 6

Removed ‘low voltage’ from the title.

Updated the value for the maximum clock frequency (from 50 to

75 MHz) throug h the document.

Added: Table 15: AC characteristics (75 MHz operation, T9HX (0.11

µm) process) and EC OPACK® text in Section 11: Package mechanical.

Modified: Table 11: DC characteristics, Figure 3 : Bus master and

memory devices on the SPI bus, and Section 6.3: Read identification

(RDID).

Minor text changes.

01-Apr-2008 7 Applied Numonyx branding.

M45PE10

47/47

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