Datasheet > 存储 > SRAM> CY7C0251AV-25AI

CY7C0251AV-25AI

更新时间： 2024-09-17 22:41:03

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		/
页数	文件大小	规格书
19页	242K
描述
3.3V 4K/8K/16K x 16/18 Dual-Port Static RAM

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中文翻译

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数据手册

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CY7C0251AV-25AI 数据手册

CY7C024AV/025AV/026AV

CY7C0241AV/0251AV/036AV

3.3V 4K/8K/16K x 16/18 Dual-Port Static RAM

• Fully asynchronous operation

• Automatic power-down

• Expandable data bus to 32/36 bits or more using

Master/Slave chip select when using more than one

device

• On-chip arbitration logic

• Semaphores included to permit software handshaking

between ports

• INT flag for port-to-port communication

• Separate upper-byte and lower-byte control

• Pin select for Master or Slave

• Commercial and industrial temperature ranges

• Available in 100-pin TQFP

Features

• True dual-ported memory cells which allow

simultaneous access of the same memory location

• 4/8/16K × 16 organization (CY7C024AV/025AV/026AV)

• 4/8K × 18 organization (CY7C0241AV/0251AV)

• 16K × 18 organization (CY7C036AV)

• 0.35-micron CMOS for optimum speed/power

• High-speed access: 20 and 25 ns

• Low operating power

— Active: I_CC= 115 mA (typical)

—Standby: I_SB3= 10 µA (typical)

Logic Block Diagram

R/W

[1]

8/9

[1]

15/17L

I/O

–I/O

I/O

–I/O

8/9L

15/17R

[2]

I/O

Control

I/O

Control

[2]

7/8L

I/O –I/O

7/8R

12/13/14

[3]

Address

Decode

Address

Decode

True Dual-Ported

A –A

–A

0L 11/1213L

0R 11/12/13R

RAM Array

[3]

12/13/14

A –A

–A

0L 11/12/13L

0R 11/12/13R

Interrupt

Semaphore

Arbitration

R/W

SEM

[4]

BUSY

INT

M/S

Notes:

1. I/O –I/O for x16 devices; I/O –I/O for x18 devices.

2. I/O –I/O for x16 devices; I/O –I/O for x18 devices.

3. A –A for 4K devices; A –A for 8K devices; A –A for 16K devices.

4. BUSY is an output in master mode and an input in slave mode.

Cypress Semiconductor Corporation

Document #: 38-06052 Rev. *E

•

3901 North First Street

•

San Jose, CA 95134

•

408-943-2600

Revised October 12, 2004

12 3 4 5 6 7...19

中文翻译

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与CY7C0251AV-25AI相关器件

型号	品牌	获取价格	描述	数据表
CY7C0251V	CYPRESS	获取价格	3.3V 4K/8K/16K x 16/18 Dual-Port Static RAM
CY7C0251V-20AC	CYPRESS	获取价格	Dual-Port SRAM, 8KX18, 20ns, CMOS, PQFP100, PLASTIC, TQFP-100
CY7C0251V-25AC	CYPRESS	获取价格	Dual-Port SRAM, 8KX18, 25ns, CMOS, PQFP100, PLASTIC, TQFP-100
CY7C0251V-25AI	CYPRESS	获取价格	Dual-Port SRAM, 8KX18, 25ns, CMOS, PQFP100, PLASTIC, TQFP-100
CY7C025-25AC	CYPRESS	获取价格	4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C025-25ACT	CYPRESS	获取价格	Dual-Port SRAM, 8KX16, 25ns, CMOS, PQFP100, PLASTIC, TQFP-100
CY7C025-25AI	CYPRESS	获取价格	4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C025-25AXC	CYPRESS	获取价格	4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C025-25AXI	CYPRESS	获取价格	4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C025-25JC	CYPRESS	获取价格	4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY

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