Datasheet > CY7C139AV-25JC

CY7C139AV-25JC

更新时间： 2024-11-26 22:25:39

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		/
页数	文件大小	规格书
20页	303K
描述
3.3V 4K/8K/16K/32K x 8/9 Dual-Port Static RAM

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中文翻译

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数据手册

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CY7C139AV-25JC 数据手册

25/0251

CY7C138AV/144AV/006AV

CY7C139AV/145AV/016AV

CY7C007AV/017AV

3.3V 4K/8K/16K/32K x 8/9

Dual-Port Static RAM

• Fully asynchronous operation

• Automatic power-down

Features

• True Dual-Ported memory cells which allow simulta-

neous access of the same memory location

• 4K/8K/16K/32K x 8 organizations

(CY7C0138AV/144AV/006AV/007AV)

• 4K/8K/16K/32K x 9 organizations

(CY7C0139AV/145AV/016AV/017AV)

• 0.35-micron CMOS for optimum speed/power

• High-speed access: 20/25 ns

• Low operating power

• Expandabledatabusto16/18bitsormoreusingMaster/

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

• Pin select for Master or Slave

• Commercial and Industrial Temperature Ranges

• Available in 68-pin PLCC (all) and 64-pin TQFP

(7C006AV & 7C144AV)

— Active: I_CC= 115 mA (typical)

— Standby: I_SB3= 10 µA (typical)

• Pin-compatible and functionally equivalent to

IDT70V05, 70V06, and 70V07.

Logic Block Diagram

R/W_L

CE_L

R/W_R

CE_R

OE_L

OE_R

[1]

8/9

I/O_0L–I/O_7/8L

I/O_0R–I/O_7/8R

I/O

Control

I/O

Control

[2]

12–15

[2]

Address

Decode

Address

Decode

True Dual-Ported

A_0L–A_11–14L

A_0R–A_11–14R

RAM Array

12–15

[2]

A_0L–A_11–14L

A_0R–A_11–14R

CE_L

CE_R

OE_R

Interrupt

Semaphore

Arbitration

OE_L

R/W_L

SEM_L

R/W_R

SEM_R

[3]

BUSY_L

INT_L

^[3]BUSY_R

INT_R

M/S

Notes:

1. I/O₀–I/O₇for x8 devices; I/O₀–I/O₈for x9 devices.

2. A₀–A₁₁for 4K devices; A₀–A₁₂for 8K devices; A₀–A₁₃for 16K devices; A₀–A₁₄for 32K devices;

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

For the most recent information, visit the Cypress web site at www.cypress.com

Cypress Semiconductor Corporation

•

3901 North First Street

•

San Jose

•

CA 95134

•

408-943-2600

Document #: 38-06051 Rev. *A

Revised December 27, 2002

12 3 4 5 6 7...20

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