Datasheet > 存储 > SRAM> CY14B256L-SP45XC

CY14B256L-SP45XC

更新时间： 2024-11-05 06:51:31

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		静态存储器
页数	文件大小	规格书
18页	642K
描述
256 Kbit (32K x 8) nvSRAM

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中文翻译

获取价格

数据手册

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CY14B256L-SP45XC 数据手册

CY14B256L

256 Kbit (32K x 8) nvSRAM

Features

Functional Description

■

25 ns, 35 ns, and 45 ns access times

Pin compatible with STK14D88

The Cypress CY14B256L is a fast static RAM with a nonvolatile

element in each memory cell. The embedded nonvolatile

elements incorporate QuantumTrap technology producing the

world’s most reliable nonvolatile memory. The SRAM provides

unlimited read and write cycles, while independent, nonvolatile

data resides in the highly reliable QuantumTrap cell. Data

transfers from the SRAM to the nonvolatile elements (the

STORE operation) takes place automatically at power down. On

power up, data is restored to the SRAM (the RECALL operation)

from the nonvolatile memory. Both the STORE and RECALL

operations are also available under software control. A hardware

STORE is initiated with the HSB pin.

Hands off automatic STORE on power down with only a small

capacitor

■

STORE to QuantumTrap™ nonvolatile elements is initiated by

software, hardware, or AutoStore™ on power down

■

RECALL to SRAM initiated by software or power up

Unlimited READ, WRITE, and RECALL cycles

200,000 STORE cycles to QuantumTrap

20 year data retention at 55°C

Single 3V +20%, –10% operation

Commercial and industrial temperature

32-pin (300 mil) SOIC and 48-pin (300 mil) SSOP packages

RoHS compliance

Logic Block Diagram

CAP

Quantum Trap

512 X 512

POWER

CONTROL

A₅

STORE

A₆

A₇

A₈

RECALL

STORE/

RECALL

CONTROL

STATIC RAM

ARRAY

512 X 512

HSB

A₉

A₁₁

A₁₂

A₁₃

A₁₄

SOFTWARE

DETECT

A₁₃

A₀

DQ₀

COLUMN I/O

DQ₁

DQ₂

DQ₃

COLUMN DEC

DQ₄

DQ₅

DQ₆

DQ₇

A₀

A₄

A₁₀

A₁

A₃

A₂

Cypress Semiconductor Corporation

Document Number: 001-06422 Rev. *H

•

198 Champion Court

•

San Jose

CA 95134-1709

•

408-943-2600

Revised January 30, 2009

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与CY14B256L-SP45XC相关器件

型号	品牌	获取价格	描述	数据表
CY14B256L-SP45XCT	CYPRESS	获取价格	256-Kbit (32K x 8) nvSRAM
CY14B256L-SP45XI	CYPRESS	获取价格	256-Kbit (32K x 8) nvSRAM
CY14B256L-SP45XIT	CYPRESS	获取价格	256-Kbit (32K x 8) nvSRAM
CY14B256L-SZ25XC	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM
CY14B256L-SZ25XCT	CYPRESS	获取价格	256-Kbit (32K x 8) nvSRAM
CY14B256L-SZ25XI	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM
CY14B256L-SZ25XIT	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM
CY14B256L-SZ35XC	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM
CY14B256L-SZ35XCT	CYPRESS	获取价格	256-Kbit (32K x 8) nvSRAM
CY14B256L-SZ35XI	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM