Datasheet > CY14C256Q_12

CY14C256Q_12

更新时间： 2024-11-20 12:50:27

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
32页	1520K
描述
256-Kbit (32 K Ã 8) SPI nvSRAM

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中文翻译

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数据手册

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CY14C256Q_12 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

automatically 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

Configuration

❐ Manufacturer ID and Product ID

❐ Sleep mode

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

Logic Block Diagram

V_CCV_CAP

Serial Number

8 x 8

Power Control

Block

Manufacturer ID /

Product ID

QuantumTrap

32 K x 8

SLEEP

STORE

SRAM

32 K x 8

RDSN/WRSN/RDID

READ/WRITE

STORE/RECALL/ASENB/ASDISB

Memory

RECALL

Data &

Address

Control

SPI Control Logic

Write Protection

Instruction decoder

SCK

WRSR/RDSR/WREN

Status Register

Note

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

Cypress Semiconductor Corporation

Document Number: 001-65282 Rev. *E

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised July 24, 2012

12 3 4 5 6 7...32

中文翻译

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与CY14C256Q_12相关器件

型号	品牌	获取价格	描述	数据表
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
CY14C512Q	CYPRESS	获取价格	512-Kbit (64 K x 8) SPI nvSRAM Infinite read, write, and RECALL cycles

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