位置:CY14C256PA > CY14C256PA详情

CY14C256PA中文资料

厂家型号

CY14C256PA

文件大小

1650Kbytes

页面数量

44

功能描述

256-Kbit (32 K x 8) SPI nvSRAM with Real Time Clock Infinite read, write, and RECALL cycles

数据手册

下载地址一下载地址二到原厂下载

简称

CYPRESS赛普拉斯

生产厂商

Cypress Semiconductor

中文名称

赛普拉斯半导体公司官网

CY14C256PA数据手册规格书PDF详情

Overview

The Cypress CY14X256PA combines a 256-Kbit nvSRAM[1] with a full-featured RTC in a monolithic integrated circuit 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. 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.

Features

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

❐ 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)

❐ Automatic STORE on power-down with a small capacitor

■ High reliability

❐ Infinite read, write, and RECALL cycles

❐ 1 million STORE cycles to QuantumTrap

❐ Data retention: 20 years at 85C

■ Real time clock (RTC)

❐ Full-featured RTC

❐ Watchdog timer

❐ Clock alarm with programmable interrupts

❐ Backup power fail indication

❐ Square wave output with programmable frequency (1 Hz, 512 Hz, 4096 Hz, 32.768 kHz)

❐ Capacitor or battery backup for RTC

❐ Backup current of 0.45 µA (typical)

■ 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 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

■ Write protection

❐ Hardware protection using Write Protect (WP) pin

❐ Software protection using Write Disable instruction

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

■ Low power consumption

❐ Average active current of 3 mA at 40 MHz operation

❐ Average standby mode current of 250 A

❐ Sleep mode current of 8 A

■ Industry standard configurations

❐ Operating voltages:

• CY14C256PA: VCC = 2.4 V to 2.6 V

• CY14B256PA: VCC = 2.7 V to 3.6 V

• CY14E256PA: VCC = 4.5 V to 5.5 V

❐ Industrial temperature

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

❐ Restriction of hazardous substances (RoHS) compliant

更新时间:2025-10-21 15:31:00
供应商 型号 品牌 批号 封装 库存 备注 价格
Cypress
22+
28SOIC
9000
原厂渠道,现货配单
Cypress
23+
28-SOIC
39257
专业分销产品!原装正品!价格优势!
CYPRESS
25+
SOP-28
1001
就找我吧!--邀您体验愉快问购元件!
Cypress
25+
电联咨询
7800
公司现货,提供拆样技术支持
CYPRESS
18+
28-SOIC
85600
保证进口原装可开17%增值税发票
CYPRESS
2015+
SOP/QFP/PLCC
19889
一级代理原装现货,特价热卖!
CYPRESS
23+
SOP28
8560
受权代理!全新原装现货特价热卖!
CYPRESS/赛普拉斯
24+
NA/
3260
原装现货,当天可交货,原型号开票
CYPRESS赛普拉斯
1636+
SOP28
2100
代理品牌
Cypress Semiconductor Corp
25+
28-SOIC(0.345 8.77mm 宽)
9350
独立分销商 公司只做原装 诚心经营 免费试样正品保证