Datasheet > STK17T88

STK17T88

更新时间： 2024-11-07 06:14:43

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		存储静态存储器时钟
页数	文件大小	规格书
22页	588K
描述
32K x 8 AutoStore nvSRAM with Real Time Clock

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中文翻译

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STK17T88 数据手册

STK17T88

32K x 8 AutoStore™ nvSRAM with

Real Time Clock

Features

Description

■ nvSRAM Combined With Integrated Real-Time Clock

Functions (RTC, Watchdog Timer, Clock Alarm, Power

Monitor)

The Cypress STK17T88 combines a 256 Kb nonvolatile static

RAM (nvSRAM) with a full-featured real-time clock in a reliable,

monolithic integrated circuit.

The 256 Kb nvSRAM is a fast static RAM with a nonvolatile

Quantum Trap storage element included with each memory cell.

■ Capacitor or Battery Backup for RTC

■ 25, 45 ns Read Access and R/W Cycle Time

■ Unlimited Read/Write Endurance

The SRAM provides the fast access and cycle times, ease of use

and unlimited read and write endurance of a normal SRAM. Data

transfers automatically to the nonvolatile storage cells when

power loss is detected (the STORE operation). On power up,

data is automatically restored to the SRAM (the RECALL

operation). Both STORE and RECALL operations are also

available under software control.

■ Automatic Nonvolatile STORE on Power Loss

■ Nonvolatile STORE Under Hardware or Software Control

■ Automatic RECALL to SRAM on Power Up

■ Unlimited RECALL Cycles

The real time clock function provides an accurate clock with leap

year tracking and a programmable, high accuracy oscillator. The

Alarm function is programmable for one-time alarms or periodic

minutes, hours, or days alarms. There is also a programmable

watchdog timer for processor control.

■ 200K STORE Cycles

■ 20-Year Nonvolatile Data Retention

■ Single 3V +20%, -10% Power Supply

■ Commercial and Industrial Temperatures

■ 48-pin 300-mil SSOP Package (RoHS-Compliant)

Logic Block Diagram

V_CC

V_CAP

Quantum Trap

512 X 512

V_RTCbat

V_RTCcap

POWER

CONTROL

A₅

A₆

A₇

A₈

STORE

RECALL

STORE/

RECALL

CONTROL

STATIC RAM

ARRAY

A₉

HSB

A₁₁

A₁₂

A₁₃

A₁₄

512 X 512

SOFTWARE

DETECT

A₁₃– A₀

DQ₀

DQ₁

DQ₂

DQ₃

DQ₄

DQ₅

DQ₆

DQ₇

COLUMN I/O

X₁

X₂

COLUMN DEC

RTC

INT

A₀A₁A₂A₃A₄A₁₀

A₁₄– A₀

MUX

Cypress Semiconductor Corporation

Document Number: 001-52040 Rev. *A

•

198 Champion Court

•

San Jose, CA 95134-1709

•408-943-2600

Revised March 17, 2009

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与STK17T88相关器件

型号	品牌	获取价格	描述	数据表
STK17T88_08	SIMTEK	获取价格	32K x 8 AutoStore nvSRAM with Real-Time Clock
STK17T88-N25	SIMTEK	获取价格	Timer or RTC
STK17T88-NF25	SIMTEK	获取价格	Timer or RTC
STK17T88-NF25I	SIMTEK	获取价格	Timer or RTC
STK17T88-NF35I	SIMTEK	获取价格	Timer or RTC
STK17T88-NF45	SIMTEK	获取价格	Timer or RTC
STK17T88-RF25	CYPRESS	获取价格	32K x 8 AutoStore nvSRAM with Real Time Clock
STK17T88-RF25	SIMTEK	获取价格	32K x 8 AutoStore nvSRAM
STK17T88-RF25I	SIMTEK	获取价格	32K x 8 AutoStore nvSRAM
STK17T88-RF25I	CYPRESS	获取价格	32K x 8 AutoStore nvSRAM with Real Time Clock