CY7C4831-35AC datasheet(2/23 Pages) CYPRESS

Part #	CY7C4831-35AC

Description	256/512/1K/2K/4K/8K x9 x2 Double Sync FIFOs

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Manufacturer	CYPRESS [Cypress Semiconductor]

Direct Link	http://www.cypress.com

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2 / 23 page

CY7C4801/4811/4821

CY7C4831/4841/4851

Document #: 38-06005 Rev. **

Page 2 of 23

Logic Block Diagram

48X1–1

THREE–STATE

OUTPUT REGISTER

READ

CONTROL B

FLAG

LOGIC

WRITE

CONTROL

WRITE

POINTER B

READ

POINTER B

RESET

LOGIC

FLAG

PROGRAM

REGISTER

DB0-8

RCLKB

EFA

PAEA

PAFA

QB0-8

RSA

OEB

RAM

ARRAY A

256x9

.

8k x 9

RENB1

RENB2

FFA

WRITE

CONTROL

WRITE

POINTER A

WENA1

WCLKA

WENA2/LDA

RSB

WENB1

WCLKB

WENB2/LDB

RAM

ARRAY B

.

8k x 9

READ

CONTROL A

READ

POINTER A

RCLKA

RENA1

RENA2

INPUT

REGISTER

DA

0-8

QA0-8

LDA

LDB

EFB

PAEB

PAFB

FFB

OEA

INPUT

REGISTER

THREE–STATE

OUTPUT REGISTER

256 x9

TQFP

Top View

48X1–1

QA2

QA3

QA4

QA5

QA6

QA7

QA8

Vcc

WENA2/LDA

WCLKA

WENA1

RSA

DA8

DA7

DA6

QA1

QB0

FFB

EFB

OEB

RENB2

RCLKB

RENB1

GND

Vcc

PAEB

PAFB

DB0

DB1

DB2

DB3

DB4

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

CY7C4801

CY7C4811

CY7C4821

CY7C4831

CY7C4841

CY7C4851

Pin Configuration

Similar Part No. - CY7C4831-35AC

Manufacturer	Part #	Datasheet	Description
Cypress Semiconductor	CY7C4831-35AC	292Kb / 23P	256/512/1K/2K/4K/8K x9 x2 Double Sync FIFOs

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Similar Description - CY7C4831-35AC

Manufacturer	Part #	Datasheet	Description
Cypress Semiconductor	CY7C4801	292Kb / 23P	256/512/1K/2K/4K/8K x9 x2 Double Sync FIFOs
	CY7C4201	411Kb / 18P	64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs
	CY7C4421	545Kb / 19P	64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs
AverLogic Technologies ...	AL4CA01	74Kb / 2P	512/ 1K/ 2K/ 4K/ 8K x 9 Asynchronous FIFOs
	AL4CS211	35Kb / 2P	512, 1K, 2K, 4K, 8K x 9 Synchronous FIFOs
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Cypress Semiconductor	CY7C4421V	520Kb / 18P	Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs
Cypress Semiconductor	CY7C4421V	263Kb / 17P	Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs
AverLogic Technologies ...	AL4CE211	34Kb / 2P	512, 1K, 2K, 4K, 8K x 9 Advanced Synchronous FIFOs
AverLogic Technologies ...	AL4CE205	35Kb / 2P	256, 512, 1K, 2K, 4K x 18 Advanced Synchronous FIFOs

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