Datasheet > CY14B256K-SP25IT

CY14B256K-SP25IT

更新时间： 2024-11-20 07:18:23

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		静态存储器光电二极管
页数	文件大小	规格书
21页	588K
描述
Non-Volatile SRAM, 32KX8, 25ns, CMOS, PDSO48, ROHS COMPLIANT, SSOP-48

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CY14B256K-SP25IT 数据手册

ADVANCE

INFORMATION

CY14B256K

256-Kbit (32K x 8) nvSRAM with Real-Time

Clock

• 10 mA Typical I_CCat 200-ns Cycle Time

Features

• Single 3V Operation 20%, -10%

• Data Integrity of Cypress nvSRAM Combined with

Full-Featured Real-Time Clock

• SSOP Package (ROHS compliant)

— Low Power, 300 nA Max, RTC current

— Capacitor or battery backup for RTC

• Watchdog Timer

Functional Description

The Cypress CY14B256K combines a 256-Kbit nonvolatile

static RAM with a full-featured real-time clock in a monolithic

integrated circuit. The embedded nonvolatile elements incor-

porate QuantumTrap technology producing the world’s most

reliable nonvolatile memory. The SRAM can be read and

written an unlimited number of times, while independent,

nonvolatile data resides in the nonvolatile elements.

• Clock Alarm with programmable Interrupts

• 25 ns, 35 ns, and 45 ns Access Times

• “Hands-off” Automatic STORE on Power-down with

only a small capacitor

• STORE to QuantumTrap™Initiated by Software, device

pin, or on Power-down

The Real-Time Clock function provides an accurate clock with

leap year tracking and a programmable, high accuracy oscil-

lator. The Alarm function is programmable for one-time alarms

or periodic seconds, minutes, hours, or days. There is also a

programmable Watchdog Timer for process control.

• RECALL to SRAM Initiated by Software or on Power-up

• Unlimited READ, WRITE and RECALL Cycles

• High-reliability

— Endurance to 500K Cycles

— Data Retention: 100 years

Logic Block Diagram

Cypress Semiconductor Corporation

Document #: 001-06431 Rev. *A

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised February 22, 2006

12 3 4 5 6 7...21

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与CY14B256K-SP25IT相关器件

型号	品牌	获取价格	描述	数据表
CY14B256K-SP25XC	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM with Real Time Clock
CY14B256K-SP25XCT	CYPRESS	获取价格	256-Kbit (32K x 8) nvSRAM with Real-Time-Clock
CY14B256K-SP25XI	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM with Real Time Clock
CY14B256K-SP25XIT	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM with Real Time Clock
CY14B256K-SP35XC	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM with Real Time Clock
CY14B256K-SP35XCT	CYPRESS	获取价格	256-Kbit (32K x 8) nvSRAM with Real-Time-Clock
CY14B256K-SP35XI	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM with Real Time Clock
CY14B256K-SP35XIT	CYPRESS	获取价格	256 Kbit (32K x 8) nvSRAM with Real Time Clock
CY14B256K-SP45CT	CYPRESS	获取价格	Non-Volatile SRAM, 32KX8, 45ns, CMOS, PDSO48, ROHS COMPLIANT, SSOP-48
CY14B256K-SP45I	CYPRESS	获取价格	Non-Volatile SRAM, 32KX8, 45ns, CMOS, PDSO48, ROHS COMPLIANT, SSOP-48