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STK12C68_11 PDF预览

STK12C68_11

更新时间: 2024-10-28 09:00:27
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
24页 1629K
描述
64 Kbit (8K x 8) AutoStore nvSRAM 25 ns, 35 ns, and 45 ns access times

STK12C68_11 数据手册

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STK12C68  
64 Kbit (8K x 8) AutoStore nvSRAM  
Features  
Functional Description  
25 ns, 35 ns, and 45 ns access times  
The Cypress STK12C68 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. Both the STORE and RECALL  
operations are also available under software control. 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 5V+10% operation  
Commercial and industrial temperatures  
228-pin (330mil) SOIC, 28-pin (300mil) PDIP, 28-pin (600mil)  
PDIP packages  
28-pin (300 mil) CDIP and 28-pad (350 mil) LCC packages  
RoHS compliance  
Logic Block Diagram  
V
CC  
V
CAP  
Quantum Trap  
128 X 512  
A5  
A6  
POWER  
CONTROL  
STORE  
A7  
RECALL  
STORE/  
RECALL  
CONTROL  
STATIC RAM  
ARRAY  
128 X 512  
A8  
HSB  
A9  
A11  
A12  
SOFTWARE  
DETECT  
A0  
-
A12  
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: 001-51027 Rev. *C  
198 Champion Court  
San Jose, CA 95134-1709  
408-943-2600  
Revised March 7, 2011  
[+] Feedback  

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