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STK22C48_11 PDF预览

STK22C48_11

更新时间: 2024-09-24 09:00:19
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 存储静态存储器
页数 文件大小 规格书
17页 1448K
描述
16-Kbit (2 K × 8) AutoStore? nvSRAM

STK22C48_11 数据手册

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STK22C48  
16-Kbit (2 K × 8) AutoStore™ nvSRAM  
16-Kbit (2  
K × 8) AutoStore nvSRAM  
Features  
Functional Description  
25 ns and 45 ns access times  
The Cypress STK22C48 is a fast static RAM with a nonvolatile  
element in each memory cell. The embedded nonvolatile  
Hands off automatic STORE on power-down with external  
68 µF capacitor  
elements incorporate QuantumTrap technology producing the  
world’s most reliable nonvolatile memory. The SRAM provides  
unlimited read and write cycles, while independent nonvolatile  
data resides in the highly reliable QuantumTrap cell. Data  
transfers from the SRAM to the nonvolatile elements (the  
STORE operation) takes place automatically at power-down. On  
power-up, data is restored to the SRAM (the RECALL operation)  
from the nonvolatile memory. A hardware STORE is initiated with  
the HSB pin.  
STORE to QuantumTrap™ nonvolatile elements is initiated by  
software, hardware, or AutoStore™ on power-down  
RECALL to SRAM initiated by software or power-up  
Unlimited read, write, and RECALL cycles  
1,000,000 STORE cycles to QuantumTrap  
100 year data retention to QuantumTrap  
Single 5 V +10% operation  
Commercial and industrial temperatures  
28-pin 300 mil and (330 mil) Small outline integrated circuit  
(SOIC) package  
Restriction of hazardous substances (RoHS) compliant  
Logic Block Diagram  
V
V
CC  
CAP  
Quantum Trap  
32 X 512  
POWER  
A5  
STORE  
CONTROL  
A6  
RECALL  
STORE/  
RECALL  
CONTROL  
STATIC RAM  
ARRAY  
32 X 512  
A7  
A8  
HSB  
A9  
DQ0  
COLUMN I/O  
DQ1  
DQ2  
DQ3  
COLUMN DEC  
DQ4  
DQ5  
DQ6  
DQ7  
A0  
A4  
A10  
A1  
A3  
A2  
OE  
CE  
WE  
Cypress Semiconductor Corporation  
Document Number: 001-51000 Rev. *D  
198 Champion Court  
San Jose, CA 95134-1709  
408-943-2600  
Revised March 7, 2011  
[+] Feedback  

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