Datasheet > CY14C256Q

CY14C256Q

更新时间： 2024-11-06 09:41:07

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
33页	1188K
描述
256-Kbit (32 K x 8) SPI nvSRAM Infinite read, write, and RECALL cycles

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

CY14C256Q 数据手册

CY14C256Q

CY14B256Q

CY14E256Q

256-Kbit (32 K × 8) SPI nvSRAM

256-Kbit (32

K × 8) SPI nvSRAM

■ Industry standard configurations

❐ Operating voltages:

Features

■ 256-Kbit nonvolatile static random access memory (nvSRAM)

• CY14C256Q: V_CC= 2.4 V to 2.6 V

• CY14B256Q: V_CC= 2.7 V to 3.6 V

• CY14E256Q: V_CC= 4.5 V to 5.5 V

❐ Industrial temperature

❐ 8- and 16-pin small outline integrated circuit (SOIC) package

❐ Restriction of hazardous substances (RoHS) compliant

internally organized as 32 K × 8

❐ STORE to QuantumTrap nonvolatile elements initiated

automatically on power-down (AutoStore) or by using SPI

instruction (Software STORE) or HSB pin (Hardware

STORE)

❐ RECALL to SRAM initiated on power-up (Power-Up

RECALL) or by SPI instruction (Software RECALL)

Functional Overview

❐ Support automatic STORE on power-down with a small

capacitor (except for CY14X256Q1A)

The Cypress CY14X256Q combines a 256-Kbit nvSRAM^[1]with

a nonvolatile element in each memory cell with serial SPI

interface. The memory is organized as 32 K words of 8 bits each.

The embedded nonvolatile elements incorporate the

QuantumTrap technology, creating the world’s most reliable

nonvolatile memory. The SRAM provides infinite read and write

cycles, while the QuantumTrap cells provide highly reliable

nonvolatile storage of data. Data transfers from SRAM to the

nonvolatile elements (STORE operation) takes place automati-

cally at power-down (except for CY14X256Q1A). On power-up,

data is restored to the SRAM from the nonvolatile memory

(RECALL operation). You can also initiate the STORE and

RECALL operations through SPI instruction.

■ High reliability

❐ Infinite read, write, and RECALL cycles

❐ 1million STORE cycles to QuantumTrap

❐ Data retention: 20 years at 85 C

■ 40 MHz, and 104 MHz High speed serial peripheral interface

(SPI)

❐ 40 MHz clock rate SPI write and read with zero cycle delay

❐ 104 MHz clock rate SPI write and SPI read (with special fast

read instructions)

❐ Supports SPI mode 0 (0,0) and mode 3 (1,1)

■ SPI access to special functions

❐ Nonvolatile STORE/RECALL

❐ 8-byte serial number

❐ Manufacturer ID and Product ID

❐ Sleep mode

Configuration

Feature

CY14X256Q1A CY14X256Q2A CY14X256Q3A

AutoStore

Yes

■ Write protection

Software

STORE

Yes

❐ Hardware protection using Write Protect (WP) pin

❐ Software protection using Write Disable instruction

❐ Software block protection for 1/4, 1/2, or entire array

Hardware

STORE

Yes

■ Low power consumption

❐ Average active current of 3 mA at 40 MHz operation

❐ Average standby mode current of 150 A

❐ Sleep mode current of 8 A

V_CCV_CAP

Logic Block Diagram

Serial Number

8 x 8

Power Control

Block

Manufacture ID/

Product ID

QuantrumTrap

32 K x 8

SLEEP

STORE

SRAM

32 K x 8

RDSN/WRSN/RDID

Memory

Data &

Address

Control

RECALL

READ/WRITE

SPI Control Logic

Write Protection

Instruction decoder

STORE/RECALL/ASENB/ASDISB

SCK

WRSR/RDSR/WREN

Status Register

Note

1. This device will be referred to as nvSRAM throughout the document.

Cypress Semiconductor Corporation

Document #: 001-65282 Rev. *B

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised May 3, 2011

12 3 4 5 6 7...33

中文翻译

下载PDF

与CY14C256Q相关器件

型号	品牌	获取价格	描述	数据表
CY14C256Q_12	CYPRESS	获取价格	256-Kbit (32 K Ã 8) SPI nvSRAM
CY14C512I	CYPRESS	获取价格	512-Kbit (64 K x 8) Serial (I2C) nvSRAM with Real Time Clock
CY14C512I_12	CYPRESS	获取价格	512-Kbit (64 K Ã 8) Serial (I2C) nvSRAM with
CY14C512I_13	CYPRESS	获取价格	512-Kbit (64 K x 8) Serial (I2C) nvSRAM with Real Time Clock
CY14C512J	CYPRESS	获取价格	512-Kbit (64 K x 8) Serial (I2C) nvSRAM Infinite read, write, and RECALL cycles
CY14C512J_12	CYPRESS	获取价格	512-Kbit (64 K Ã 8) Serial (I2C) nvSRAM
CY14C512J_13	CYPRESS	获取价格	512-Kbit (64 K x 8) Serial (I2C) nvSRAM
CY14C512PA	CYPRESS	获取价格	512-Kbit (64 K x 8) SPI nvSRAM with Real Time Clock Full-featured RTC
CY14C512PA_12	CYPRESS	获取价格	512-Kbit (64 K Ã 8) SPI nvSRAM with Real Tim
CY14C512PA_13	CYPRESS	获取价格	512-Kbit (64 K x 8) SPI nvSRAM

与CY14C256Q相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

14
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

12
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

36
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

33

产品中心

服务支持

精选活动

关于我们

帮助中心

CY14C256Q

CY14C256Q 数据手册

与CY14C256Q相关器件

与CY14C256Q相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

CY14C256Q

CY14C256Q 数据手册

与CY14C256Q相关器件

与CY14C256Q相关文章

您还可以找

您在本页遇到什么问题？