CY7C1217H-133AXI - Cypress Semiconductor Corp.

CY7C1217H

1-Mbit (32K x 36) Flow-Through Sync SRAM

Cypress Semiconductor Corporation • 198 Champion Court • San Jose,CA 95134-1709 • 408-943-2600

Document #: 38-05670 Rev. *B Revised July 6, 2006

Features

• 32K x 36 common I/O

• 3.3V core power supply (VDD)

• 2.5V/3.3V I/O power supply (VDDQ)

• Fast clock-to-output times

— 6.5 ns (for 133-MHz version)

• Provide high-performance 2-1-1-1 access rate

• User-selectable burst counter supporting Intel®

Pentium® interleaved or linear burst sequences

• Separate processor and controller address strobes

• Synchronous self-timed write

• Asynchr ono us output enable

• Available in JEDEC-standard lead-free 100-Pin TQFP

package

• “ZZ” Sleep Mode option

Functional Description[1]

The CY7C1217H is a 32K x 36 synchronous cache RAM

designed to interface with high-speed microprocessors with

minimum glue logic. Maximum access delay from clock rise is

6.5 ns (133-MHz version). A 2-bit on-chip counter captures the

first address in a burst and in crements the address au tomati -

cally for the rest of the burst access. All synchronous inputs

are gated by regi sters controlle d b y a positive-edge-trigg ered

Clock Input (CLK). The synchronous inputs include all

addresses, all data inputs, address-pipelining Chip Enable

(CE1), depth-expansion Chip Enables (CE2 and CE3), Burst

Control inputs (ADSC, ADSP, and ADV), Write Enables

(BW[A:D], and BWE), and Global Write (GW). Asynchronous

inputs include the Output Enable (OE) and the ZZ pin.

The CY7C1217H allows either interleaved or linear burst

sequences, selected by the MODE input pin. A HIGH se lects

an interleaved burst sequence, while a LOW selects a linear

burst sequence. Burst accesses can be initiated with the

Processor Address Strobe (ADSP) or the cache Controller

Address Strobe (ADSC) inputs. Address advancement is

controlled by the Address Advancement (ADV) input.

Addresses and chip enables are registered at rising edge of

clock when either Address Strobe Processor (ADSP) or

Address Strobe Controller (ADSC) are active. Subsequent

burst addresses can be internally generated as controlled by

the Advance pin (ADV).

The CY7C1217H operates from a +3.3V core power supply

while all outputs may operate either with a +2.5V or +3.3V

supply. All inputs and outputs are JEDEC-standard

JESD8-5-compatible.

Selection Guide

133 MHz 100 MHz Unit

Maximum Access T i me 6.5 8.0 ns

Maximum Operating Current 225 205 mA

Maximum Standby Current 40 40 mA

Note:

1. For best-practices recommendations, please refer to the Cypress application note System Design Guidelines on www.cypress.com.

CY7C1217H

Document #: 38-05670 Rev. *B Page 2 of 16

Logic Block Diagram

ADDRESS

BURST

COUNTER

AND LOGIC

CLR

ENABLE

SENSE

AMPS

OUTPUT

BUFFERS

INPUT

REGISTERS

MEMORY

ARRAY

MODE A

[1:0]

DQP

0, A1, A

ADV

CLK

ADSP

ADSC

BWD

BWC

BWB

BWA

BWE

CE1

CE2

CE3

SLEEP

CONTROL

DQA

DQP

BYTE

WRITE REGISTER

DQB

DQP

BYTE

WRITE REGISTER

DQC

DQP

BYTE

WRITE REGISTER

BYTE

WRITE REGISTER

DQD

DQP

BYTE

WRITE REGISTER

DQD

DQP

BYTE

WRITE REGISTER

DQC

DQP

BYTE

WRITE REGISTER

DQB

DQP

BYTE

WRITE REGISTER

DQA

DQP

BYTE

WRITE REGISTER

CY7C1217H

Document #: 38-05670 Rev. *B Page 3 of 16

Pin Configuration 100-Pin TQFP

NC/72M

NC/36M

VSS

VDD

NC/9M

NC/4M

DQPB

DQB

VDDQ

VSSQ

DQB

VSSQ

VDDQ

DQB

VSS

VDD

DQA

VDDQ

VSSQ

DQA

VSSQ

VDDQ

DQA

DQPA

DQPC

DQC

VDDQ

VSSQ

DQC

VSSQ

VDDQ

DQC

VDD

VSS

DQD

VDDQ

VSSQ

DQD

VSSQ

VDDQ

DQD

DQPD

CE1

CE2

BWD

BWC

BWB

BWA

CE3

VDD

VSS

CLK

BWE

ADSP

100

BYTE A

BYTE C

NC/2M ADV

ADSC

MODE

NC/18M

BYTE B

DQB

BYTE D

CY7C1217H

Document #: 38-05670 Rev. *B Page 4 of 16

Pin Descriptions

Name I/O Description

A0, A1, A Input-

Synchronous Address Inputs used to select one of the 32K address locations. Sampled at the rising

edge of the CLK if ADSP or ADSC is active LOW , and CE1, CE2, and CE3 are sampled active.

A[1:0] feed the 2-bit counter.

BWA, BWB

BWC, BWD

Input-

Synchronous Byte Write Select Inputs, active LOW. Qualified with BWE to conduct Byte Writes to the

SRAM. Sampled on the rising edge of CLK.

GW Input-

Synchronous Global Wr ite Enable Input, a ctive LOW . When asserted LOW on the rising edge of CLK, a

global Write is conducted (ALL bytes are written, regardless of the values on BW[A:D] and

BWE).

BWE Input-

Synchronous Byte Write Enable Input, active LOW . Sampled on the rising edge of CLK. This signal must

be asserted LOW to conduct a Byte Write.

CLK Input-Clock Clock In put. Used to capture all synchronous inpu ts to the device. Also used to increment

the burst counter when ADV is asserted LOW , during a burst operation.

CE1Input-

Synchronous Chip Enable 1 Input, active LOW . Sampled on the rising edge of CLK. Used in conjunction

with CE2 and CE3 to select/deselect the device. ADSP is ignored if CE1 is HIGH. CE1 is

sampled only when a new external address is loaded.

CE2Input-

Synchronous Chip Enable 2 Input, active HIGH. Sampled on the rising edge of CLK. Used in conjunction

with CE1 and CE3 to select/deselect the device. CE2 is sampled only when a new external

address is loaded.

CE3Input-

Synchronous Chip Enable 3 Input, active LOW . Sampled on the rising edge of CLK. Used in conjunction

with CE1 and CE2 to select/deselect the device. CE3 is sampled only when a new external

address is loaded.

OE Input-

Asynchronous Output Enable, asynchronous input, ac tive LOW. Controls the direction of the I/O pins.

When LOW , the I/O pins behave as outputs. When deasserted HIGH, I/O pins are tri-stated,

and act as input data pins. OE is masked during the first clock of a Read cycle when emerging

from a deselected state.

ADV Input-

Synchronous Advance Input signal, sampled on the rising edge of CLK. When asserted, it automatically

increments the address in a burst cycle.

ADSP Input-

Synchronous Address Strobe from Processor, sampled on the rising edge of CLK, active LOW. When

asserted LOW, addresses presented to the device are captured in the address registers. A[1:0]

are also loaded into the burst counter . When ADSP and ADSC are both asserted, only ADSP

is recognized. ASDP is ignored when CE1 is deasserted HIGH

ADSC Input-

Synchronous Address Strobe from Controller , sampled on the rising edge of CLK, active LOW . When

asserted LOW, addresses presented to the device are captured in the address registers. A[1:0]

are also loaded into the burst counter . When ADSP and ADSC are both asserted, only ADSP

is recognized.

ZZ Input-

Asynchronous ZZ “Sleep” Input, active HIGH. When asserted HIGH places the device in a non-time-critical

“sleep” condition with data integrity preserved. For normal operation, this pin has to be LOW

or left floating. ZZ pin has an internal pull-down.

DQs

DQPA, DQPB

DQPC, DQPD

I/O-

Synchronous Bidirectional Data I/O lines. As inputs, they feed into an on-chip data register that is triggered

by the rising edge of CLK. As outputs, they deliver the data contained in the memory location

specified by the addresses presented during the previous clock rise of the Read cycle. The

direction of the pins is controlled by OE. When OE is asserted LOW, the pins behave as

outputs. When HIGH, DQs and DQP[A:D] are placed in a tri-state condition.

VDD Power Supply Power supply inputs to the core of the device.

VSS Ground Ground for the core of the device.

VDDQ I/O Power Supply Power supply for the I/O circuitry.

VSSQ I/O Ground Ground for the I/O circuitry.

MODE Input-

Static Selects Bur st Order . When tied to GND selects linear burst sequence. When tied to VDD or

left floating selects interleaved burst sequence. This is a strap pin and shoul d remain static

during device operation. Mode Pin has an internal pull-up.

NC No Connects. Not Internall y connected to the die. 2M, 4M, 9M, 18M, 72M, 144M, 288M,

576M and 1G are address expansion pins and are not internally connected to the die.

CY7C1217H

Document #: 38-05670 Rev. *B Page 5 of 16

Functional Overview

All synchronous inputs pass through input registers controlled

by the rising edge o f the clock. Maximum access delay from

the clock rise (tCDV) is 6.5 ns (133-MHz device).

The CY7C1217H supports secondary cache in systems

utilizing either a linear or interleaved burst sequence. The

interleaved burst order supports Pentium and i486™

processors. The linear burst sequence is suited for processors

that utilize a linear burst sequence. The burst order is

user-selectable, and is determined by sampling the MODE

input. Accesses can be initiated with either the Processor

Address Strobe (ADSP) or the Controller Address Strobe

(ADSC). Address advancement through the burst sequence is

controlled by the ADV input. A two-bit on-chip wraparound

burst counter captures the first address in a burst sequence

and automatically increments the address for the rest of the

burst access.

Byte write operations are qualified with the Byte Write Enable

(BWE) and Byte Write Select (BW[A:D]) inputs. A Global W rite

Enable (GW) overrides all Byte Write inputs and writes data to

all four bytes. All Writes are simplified with on-chip

synchronous self-timed write circuitry.

Three synchronous Chip Selects (CE1, CE2, CE3) and an

asynchronous Output Enable (OE) provide for easy bank

selection and output tri-state control. ADSP is ignored if CE1

is HIGH.

Single Read Accesses

A single read access is initiated when the following conditions

are satisfied at clock rise: (1) CE1, CE2, and CE3 are all

asserted active, and (2) ADSP or ADSC is asse rted LOW (if

the access is initiated by ADSC, the write inputs must be

deasserted during this first cycle). The address presented to

the address inputs is latched into the address register and the

burst counter/control logic and presented to the memory core.

If the OE input is asserted LOW, the requested data will be

available at the data outputs a maximum to tCDV after clock

rise. ADSP is ignored if CE 1 is HIGH.

Single Write Accesses Initiated by ADSP

This access is initiated when the following conditions are

satisfied at clock rise: (1) CE1, CE2, and CE3 are all asserted

active, and (2) ADSP is asserted LOW. The addresses

presented are loaded into the address register and the burst

inputs (GW, BWE, and BW[A:D]) are ignored during this first

clock cycle. If the write inputs are asserted active (see Write

Cycle Descriptions table for ap propri ate states that i ndica te a

Write) on the next clock rise, the appropriate data will be

latched and written into the device. Byte Writes are allowed.

During Byte Writes, BWA controls DQA and BWB controls

DQB, BWC controls DQC, and BWD controls DQD. All I/Os are

tri-stated during a Byte Write. Since this is a common I/O

device, the asynchronous OE input signal must be deasserted

and the I/Os must be tri-stated prior to the presentation of data

to DQs. As a safety precaution, the data lines are tri-stated

once a write cycle is detected, regardless of the state of OE.

Single Write Accesses Initiated by ADSC

This write access is initiated when the following conditions are

satisfied at clock rise: (1) CE1, CE2, and CE3 are all asserted

active, (2) ADSC is asserted LOW, (3) ADSP is deasserted

HIGH, and (4) the write input signals (GW, BWE, and BW[A:D])

indicate a write access. ADSC is ignored if ADSP is active

LOW.

The addresses presented are loaded into the address register

and the burst counter/control logic and delivered to the

memory core. The information presented to DQ[A:D will be

written into the specified address location. Byte Writes are

allowed. During Byte Writes, BW A controls DQA, BWB controls

DQB, BWC controls DQC, and BWD controls DQD. All I/Os are

tri-stated when a write is detected, even a Byte Write. Since

this is a common I/O device, the asynchronous OE input signal

must be deasserted and the I/Os must be tri-stated prior to the

presentation of data to DQs. As a safety precaution, the data

lines are tri-stated once a Write cycle is detected, regardless

of the state of OE.

Burst Sequen ce s

The CY7C1217H provides an on-chip two-bit wraparound

burst counter inside the SRAM. The burst counter is fed by

A[1:0], and can follow either a linear or interleaved burst order .

The burst order is determined by the state of the MODE input.

A LOW on MODE will select a linear burst sequence. A HIGH

on MODE will select an interleaved burst order. Leaving

MODE unconnected will cause the device to default to a inter-

leaved burst sequence.

Sleep Mode

The ZZ input pin is an asynchronous input. Asserting ZZ

places the SRAM in a power conservation “sleep” mode. Two

clock cycles are required to enter into or exit from this “sleep”

mode. While in this mode, data integrity is guaranteed.

Accesses pending when entering the “sleep” mode are not

considered valid nor is the completion of the operation

guaranteed. The device must be deselected p rior to entering

the “sleep” mode. CEs, ADSP, and ADSC must remain

inactive for the duration of tZZREC after the ZZ input returns

LOW.

Interleaved Burst Address Table

(MODE = Floating or VDD)

First

Address

A1, A0

Second

Address

A1, A0

Third

Address

A1, A0

Fourth

Address

A1, A0

00 01 10 11

01 00 11 10

10 11 00 01

11 10 01 00

Linear Burst Address Table (MODE = GND)

First

Address

A1, A0

Second

Address

A1, A0

Third

Address

A1, A0

Fourth

Address

A1, A0

00 01 10 11

01 10 11 00

10 11 00 01

11 00 01 10

CY7C1217H

Document #: 38-05670 Rev. *B Page 6 of 16

ZZ Mode Electrical Characteristics

Parameter Description Test Conditions Min. Max. Unit

IDDZZ Sleep mode standby current ZZ > VDD – 0.2V 40 mA

tZZS Device operation to ZZ ZZ > VDD – 0.2V 2tCYC ns

tZZREC ZZ recovery time ZZ < 0.2V 2tCYC ns

tZZI ZZ Active to sleep current This parameter is sampled 2tCYC ns

tRZZI ZZ Inactive to exit sleep current This parameter is sampled 0 ns

Truth Table[2, 3, 4, 5, 6]

Cycle Description Address

Used CE1CE2CE3ZZ ADSP ADSC ADV WRITE OE CLK DQ

Deselected Cycle,

Power-down None H X X L X L X X X L-H Tri-State

Deselected Cycle,

Power-down None L L X L L X X X X L-H Tri-State

Deselected Cycle,

Power-down None L X H L L X X X X L-H Tri-State

Deselected Cycle,

Power-down None L L X L H L X X X L-H Tri-State

Deselected Cycle,

Power-down None X X X L H L X X X L-H Tri-State

Sleep Mode, Power-down None X X X H X X X X X X Tri-State

Read Cycle, Begin Burst External L H L L L X X X L L-H Q

Read Cycle, Begin Burst External L H L L L X X X H L-H Tri-State

Write Cycle, Begin Burst External L H L L H L X L X L-H D

Read Cycle, Begin Burst External L H L L H L X H L L-H Q

Read Cycle, Begin Burst External L H L L H L X H H L-H Tri-State

Read Cycle, Continue Burst Next X X X L H H L H L L-H Q

Read Cycle, Continue Burst Next X X X L H H L H H L-H Tri-State

Read Cycle, Continue Burst Next H X X L X H L H L L-H Q

Read Cycle, Continue Burst Next H X X L X H L H H L-H Tri-State

Write Cycle, Continue Burst Next X X X L H H L L X L-H D

Write Cycle, Continue Burst Next H X X L X H L L X L-H D

Read Cycle, Suspend Burst Current X X X L H H H H L L-H Q

Read Cycle, Suspend Burst Current X X X L H H H H H L-H Tri-State

Read Cycle, Suspend Burst Current H X X L X H H H L L-H Q

Read Cycle, Suspend Burst Current H X X L X H H H H L-H Tri-State

Write Cycle, Suspend Burst Current X X X L H H H L X L-H D

Write Cycle, Suspend Burst Current H X X L X H H L X L-H D

Notes:

2. X = “Don't Care.” H = Logic HIGH, L = Logic LOW.

3. WRITE = L when any one or more Byte W rite E nable signal s (BW A, BWB, BWC, BWD) and BWE = L or GW = L. W RITE = H when all Byte W rit e Enable si gnals

(BWA, BWB, BWC, BWD), BWE, GW = H.

4. The DQ pins are controlled by the current cycle and the OE signal. OE is asynchronous and is not sampled with the clock.

5. The SRAM always initiates a Read cycle when ADSP is asserted, regardless of th e state of GW , BWE, or BW[A: D]. Writes may occur only on subsequent clocks

after the ADSP or with the assertion of ADSC. As a result, OE must be driven HIGH prior to the start of the Write cycle to allow the outputs to tri-state. OE is a

don't care for the remain der of the Write cycle.

6. OE is asynchronous and is not sampled with the clock rise. It is masked interna lly during W rite cycles. During a Re ad cycle all dat a bit s are t ri-stat e when OE is

inactive or when the device is deselected, and all data bits behave as output when OE is active (LOW).

CY7C1217H

Document #: 38-05670 Rev. *B Page 7 of 16

Truth Table for Read/Write[2, 3]

Function GW BWE BWDBWCBWBBWA

Read HHXXXX

Read HLHHHH

Write Byte (A, DQPA) HLHHHL

Write Byte (B, DQPB)HLHHLH

Write Bytes (B, A, DQPA, DQPB)HLHHLL

Write Byte (C, DQPC) HLHLHH

Write Bytes (C, A, DQPC, DQPA) HLHLHL

Write Bytes (C, B, DQPC, DQPB)HLHLLH

Write Bytes (C, B, A, DQPC, DQPB, DQPA)HLHLLL

Write Byte (D, DQPD) HLLHHH

Write Bytes (D, A, DQPD, DQPA)HLLHHL

Write Bytes (D, B, DQPD, DQPA)HLLHLH

Write Bytes (D, B, A, DQPD, DQPB, DQPA)H L L H L L

Write Bytes (D, B, DQPD, DQPB) HLLLHH

Write Bytes (D, B, A, DQPD, DQPC, DQPA)HLLLHL

Write Bytes (D, C, A, DQPD, DQPB, DQPA)HLLLLH

Write All Bytes HLLLLL

Write All Bytes L XXXXX

CY7C1217H

Document #: 38-05670 Rev. *B Page 8 of 16

Maximum Ratings

(Above which the useful life may be impaired. For user guide-

lines, not tested.)

Storage Temperature ............. ... ... ... ..........–65°C to + 150°C

Ambient Temperature with

Power Applied........ ... ... .............. ... ... ..........–55°C to + 125°C

Supply Voltage on VDD Relative to GND.......–0.5V to + 4.6V

Supply Voltage on VDDQ Relative to GND.....–0.5V to + VDD

DC Voltage Appli ed to Outputs

in Tri-S tate.......................... ... ..............–0.5V to VDDQ + 0.5V

DC Input Voltage ............................... ... .–0.5V to VDD + 0.5V

Current into Outputs (LOW).........................................20 mA

Static Discharge Voltage........................................... >2001V

(per MIL-STD-883, Method 3015)

Latch-up Current..................................................... >200 mA

Operating Range

Range Ambient

Temperature]VDD VDDQ

Commercial 0°C to +70°C 3.3V

−5%/+10% 2.5V –5%

to VDD

Industrial –40°C to +85°C

Electrical Characteristics Over the Operating Range [7, 8]

Parameter Description Test Conditions Min. Max. Unit

VDD Power Supply Voltage 3.135 3.6 V

VDDQ I/O Supply Voltage for 3.3V I/O 3.135 VDD V

for 2.5V I/O 2.375 2.625 V

VOH Output HIGH Voltage for 3.3V I/O, IOH = –4.0 mA 2.4 V

for 2.5V I/O, IOH = –1.0 mA 2.0 V

VOL Output LOW Voltage for 3.3V I/O, IOL = 8.0 mA 0.4 V

for 2.5V I/O, IOL = 1.0 mA 0.4 V

VIH Input HIGH Voltage[7] for 3.3V I/O 2.0 VDD + 0.3V V

for 2.5V I/O 1.7 VDD + 0.3V V

VIL Input LOW Voltage[7] for 3.3V I/O –0.3 0.8 V

for 2.5V I/O –0.3 0.7 V

IXInput Leakage Current

except ZZ and MODE GND ≤ VI ≤ VDDQ −55µA

Input Current of MODE Input = VSS –30 µA

Input = VDD 5µA

Input Current of ZZ Input = VSS –5 µA

Input = VDD 30 µA

IOZ Output Leakage Current GND ≤ VI ≤ VDDQ, Output Disabled –5 5 µA

IDD VDD Operating Supply

Current VDD = Max., I OUT = 0 mA,

f = fMAX= 1/tCYC 7.5-ns cycle, 133 MHz 225 mA

10-ns cycle, 100 MHz 205 mA

ISB1 Automatic CE

Power-Down

Current—TTL Inputs

Max. VDD, Device Deselected,

VIN ≥ VIH or VIN ≤ VIL, f = fMAX,

inputs switching

7.5-ns cycle, 133 MHz 90 mA

10-ns cycle, 100 MHz 80 mA

ISB2 Automatic CE

Power-Down

Current—CMOS Inputs

Max. VDD, Device Deselected,

VIN ≥ VDD – 0.3 V or VIN ≤ 0.3V,

f = 0, inputs static

All speeds 40 mA

ISB3 Automatic CE

Power-Down

Current—CMOS Inputs

Max. VDD, Device Deselected,

VIN ≥ VDDQ – 0.3V or VIN ≤ 0.3V,

f = fMAX, inputs switching

7.5-ns cycle, 133 MHz 75 mA

10-ns cycle, 100 MHz 65 mA

ISB4 Automatic CE

Power-Down

Current—TTL Inputs

Max. VDD, Device Deselected,

VIN ≥ VDD – 0.3V or VIN ≤ 0.3V,

f = 0, inputs static

All speeds 45 mA

Notes:

7. Overshoot: VIH(AC) < VDD +1.5V (Pulse width less than tCYC/2), undershoot: VIL(AC) > –2V (Pulse width less than tCYC/2).

8. TPower-up: Assumes a linear ramp from 0V to VDD(min.) within 200 ms. During this time VIH < VDD and VDDQ < VDD.

CY7C1217H

Document #: 38-05670 Rev. *B Page 9 of 16

Capacitance[9]

Parameter Description Test Conditions 100 TQFP

Max. Unit

CIN Input Capacit ance TA = 25°C, f = 1 MHz,

VDD = 3.3V. VDDQ = 2.5V 5pF

CCLK Clock Input Capacitance 5 pF

CI/O Input/Output Capacitance 5 pF

Thermal Resistance[9]

Parameter Descrip tion Test Conditions 100 TQFP

Package Unit

ΘJA Thermal Resistance

(Junction to Ambient) Test cond itions follow standard test methods

and procedures for measuring thermal

impedance, per EIA/JESD51

30.32 °C/W

ΘJC Thermal Resistance

(Junction to Case) 6.85 °C/W

AC Test Loads and Waveforms

Note:

9. Tested initially and after any design or process change that may affect these parameters.

OUTPUT

R = 317Ω

R = 351Ω

5pF

INCLUDING

JIG AND

SCOPE

(a) (b)

OUTPUT

RL= 50Ω

Z0= 50Ω

= 1.5V

3.3V ALL INPUT PULSES

VDDQ

GND

90%

10% 90%

10%

≤1 ns ≤1 ns

(c)

OUTPUT

R = 1667Ω

R =1538Ω

5pF

INCLUDING

JIG AND

SCOPE

(a) (b)

OUTPUT

RL= 50Ω

Z0= 50Ω

VT= 1.25V

2.5V ALL INPUT PULSES

VDDQ

GND

90%

10% 90%

10%

≤1 ns ≤

1 ns

(c)

3.3V I/O Test Load

2.5V I/O Test Load

CY7C1217H

Document #: 38-05670 Rev. *B Page 10 of 16

Switching Characteristics Over the Operating Range [10, 11]

Parameter Description

133 MHz 100 MHz

UnitMin. Max. Min. Max.

tPOWER VDD(Typical) to the First Access[12] 11ms

Clock

tCYC Clock Cycle Time 7.5 10 ns

tCH Clock HIGH 2.5 4.0 ns

tCL Clock LOW 2.5 4.0 ns

Output Times

tCDV Dat a Output Valid after CLK Rise 7.5 8.0 ns

tDOH Data Output Hold after CLK Rise 2.0 2.0 ns

tCLZ Clock to Low-Z[13, 14, 15] 00ns

tCHZ Clock to High-Z[13, 14, 15] 3.5 3.5 ns

tOEV OE LOW to Output Valid 3.5 3.5 ns

tOELZ OE LOW to Output Low-Z[13, 14, 15] 00ns

tOEHZ OE HIGH to Output High-Z[13, 14, 15] 3.5 3.5 ns

Set-up Times

tAS Address Set-up before CLK Rise 1.5 2.0 ns

tADS ADSP, ADSC Set-up before CLK Rise 1.5 2.0 ns

tADVS ADV Set-up before CLK Rise 1.5 2.0 ns

tWES GW, BWE, BW[A:D] Set-up before CLK Rise 1.5 2.0 ns

tDS Data Input Set-up before CLK Rise 1.5 2.0 ns

tCES Chip Enable Set-up 1.5 2.0 ns

Hold Times

tAH Address Hold after CLK Rise 0.5 0.5 ns

tADH ADSP, ADSC Hol d after CLK Rise 0.5 0.5 ns

tWEH GW, BWE, BW[A:D] Hold after CLK Rise 0.5 0.5 ns

tADVH ADV Hold after CLK Rise 0.5 0.5 ns

tDH Data Input Hold after CLK Rise 0.5 0.5 ns

tCEH Chip Enable Hold after CLK Rise 0.5 0.5 ns

Notes:

10.Timing reference level is 1.5V when VDDQ = 3.3V and is 1.25V when V DDQ = 2.5V.

11. Test conditions shown in (a) of AC Test Loads unless otherwise noted.

12.This pa rt has a voltage regulator int ernally; tPOWER is the time that the power n eeds to be supplied above VDD(minimum) initial ly before a Read or Writ e operation

can be initiated.

13.tCHZ, tCLZ,tOELZ, and tOEHZ are specified with AC test conditions shown in part (b) of AC Test Loads. T ransition is measured ± 200 mV from steady-st ate voltage.

14.At any given voltage and temperature, tOEHZ is less than tOELZ and tCHZ is less than tCLZ to eliminate bus contention between SRAMs when shar ing the same

data bus. These specif ications do no t impl y a bus conten tio n conditi on, bu t re fle ct parameters guaranteed over worst case user condi tions. Device is designe d

to achieve High-Z prior to Low-Z under the same system conditions.

15.This parameter is sampled and not 100% tested.

CY7C1217H

Document #: 38-05670 Rev. *B Page 11 of 16

Timing Diagrams

Read Cycle Timing[16]

Note:

16.On this diagram, when CE is LOW, CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH, CE1 is HIGH or CE2 is LOW or CE3 is HIGH.

tCYC

tCL

CLK

tADH

tADS

ADDRESS

tCH

tAH

tAS

tCEH

tCES

Data Out (Q) High-Z

tCLZ tDOH

tCDV

tOEHZ

tCDV

Single READ BURST

READ

tOEV tOELZ tCHZ

Burst wraps around

to its initial state

tADVH

tADVS

tWEH

tWES

tADH

tADS

Q(A2) Q(A2 + 1) Q(A2 + 2)

Q(A1) Q(A2) Q(A2 + 1) Q(A2 + 2)Q(A2 + 3)

ADV suspends burst.

Deselect Cycle

DON’T CARE UNDEFINED

ADSP

ADSC

W, BWE,BW[A:D]

ADV

CY7C1217H

Document #: 38-05670 Rev. *B Page 12 of 16

Write Cycle Timing[16, 17]

Note:

17.Full width Write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BW[A:D] LOW.

Timing Diagrams (continued)

tCYC

tCL

CLK

tADH

tADS

ADDRESS

tCH

tAH

tAS

tCEH

tCES

High-Z

BURST READ BURST WRITE

D(A2) D(A2 + 1) D(A2 + 1)

D(A1) D(A3) D(A3 + 1) D(A3 + 2)D(A2 + 3)

A2 A3

Extended BURST WRITE

D(A2 + 2)

Single WRITE

tADH

tADS

tADH

tADS

tOEHZ

tADVH

tADVS

tWEH

tWES

tDH

tDS

tWEH

tWES

Byte write signals are ignored for first cycle when

ADSP initiates burst.

ADSC extends burst.

ADV suspends burst.

DON’T CARE UNDEFINED

ADSP

ADSC

BWE,

BW[A:D]

ADV

Data in (D)

ata Out (Q)

CY7C1217H

Document #: 38-05670 Rev. *B Page 13 of 16

Read/Write Timing[16, 18, 19]

Notes:

18.The data bus (Q) remains in High-Z following a Write cycle unless an ADSP, ADSC, or ADV cycle is performed.

19.GW is HIGH.

Timing Diagrams (continued)

CYC

tCL

CLK

tADH

tADS

ADDRESS

tCH

tAH

tAS

tCEH

tCES

Single WRITE

D(A3)

A3 A4

BURST READBack-to-Back READs

High-Z

Q(A2) Q(A4) Q(A4+1) Q(A4+2) Q(A4+3)

tWEH

tWES

tOEHZ

tDH

tDS

tCDV

tOELZ

A1 A5 A6

D(A5) D(A6)

Q(A1)

Back-to-Back

WRITEs

DON’T CARE UNDEFINED

ADSP

ADSC

BWE, BW[A:D]

ADV

Data In (D)

Data Out (Q)

CY7C1217H

Document #: 38-05670 Rev. *B Page 14 of 16

ZZ Mode Timing[20, 21]

Notes:

20.Device must be deselected when entering ZZ mode. See Cycle Descriptions t able for all possible signal conditions to deselect the device.

21.DQs are in High-Z when exiting ZZ sleep mode.

Timing Diagrams (continued)

tZZ

SUPPLY

CLK

tZZREC

LL INPUTS

(except ZZ)

DON’T CARE

IDDZZ

tZZI

tRZZI

Outputs (Q)

High-Z

DESELECT or READ Only

CY7C1217H

Document #: 38-05670 Rev. *B Page 15 of 16

© Cypress Semi con duct or Cor po rati on , 20 06 . The information con t a in ed he re i n is subject to change wi t hou t n oti ce. C ypr ess S em ic onductor Corporation assumes no resp onsibility f or the u se

of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be

used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypr ess. Furtherm ore, Cypress doe s not authorize i ts

products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant inju ry to the user. The inclusion of Cypress

products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Intel and Pentium are registered trademarks and i486 is a trademark of Intel Corporation. All product and company names

mentioned in this document may be the trademarks of their respective holders.

Ordering Information

Not all of the speed, package and temperature ranges are available. Please contact your local sales representative or

visit www.cypress.com for actual products offered.

Speed

(MHz) Ordering Code Package

Diagram Package Type Operating

Range

100 CY7C1217H-100AXC 51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Lead-Free Commercial

CY7C1217H-100AXI Industrial

133 CY7C1217H-133AXC 51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Lead-Free Commercial

CY7C1217H-133AXI Industrial

Package Diagram

NOTE:

1. JEDEC STD REF MS-026

2. BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH

MOLD PROTRUSION/END FLASH SHALL NOT EXCEED 0.0098 in (0.25 mm) PER SIDE

3. DIMENSIONS IN MILLIMETERS

BODY LENGTH DIMENSIONS ARE MAX PLASTIC BODY SIZE INCLUDING MOLD MISMATCH

0.30±0.08

0.65

20.00±0.10

22.00±0.20

1.40±0.05

12°±1°

1.60 MAX.

0.05 MIN.

0.60±0.15

0° MIN.

0.25

0°-7°

(8X)

STAND-OFF

R 0.08 MIN.

TYP.

0.20 MAX.

0.15 MAX.

0.20 MAX.

R 0.08 MIN.

0.20 MAX.

14.00±0.10

16.00±0.20

0.10

SEE DETAIL A

DETAIL

100

31 50

GAUGE PLANE

1.00 REF.

0.20 MIN.

SEATING PLANE

100-Pin TQFP (14 x 20 x 1.4 mm) (51-85050)

51-85050-*B

CY7C1217H

Document #: 38-05670 Rev. *B Page 16 of 16

Document History Page

Document Title: CY7C1217H 1-Mbit (32K x 36) Flow-Through Sync SRAM

Document Number: 38-05670

REV. ECN NO. Issue Date Orig. of

Change Description of Change

** 345879 See ECN PCI New Data Sheet

*A 430677 See ECN NXR Changed address of Cypress Semiconductor Corporation on Page# 1 from

“3901 North First Street” to “198 Champion Court”

Added 2.5VI/O option

Changed Three-State to Tri-State

Included Maximum Ratings for VDDQ relative to GND

Modified “Input Load” to “Input Leakage Current except ZZ and MODE” in the

Electrical Characteristics Table

Modified test condition from VIH < VDD to VIH < VDD

Replaced Package Name column with Package Diagram in the Ordering

Information table

*B 482139 See ECN VKN Converted from Preliminary to Final.

Updated the Ordering Information table.