8Kx8 AutoStore nvSRAM
Description
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STK12C68 (SMD5962-94599)
8Kx8 AutoStore nvSRAM DESCRIPTION
The Simtek STK12C68 is a 64Kb fast static RAM with a non-volatile Quantum Trap storage element included with each memory cell.
The SRAM provides the fast access & cycle times, ease of use and unlimited read & write endurance of a normal SRAM.
Data transfers automatically to the non-volatile 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.
The Simtek nvSRAM is the first monolithic non-volatile memory to offer unlimited writes and reads.
It is the highest performance, most reliable non-volatile memory available.
FEATURES
• 25, 35, 45, 55 ns Read Access & Write Cycle Time • Unlimited Read/Write Endurance • Automatic Non-volatile STORE on Power Loss • Non-Volatile STORE Under Hardware or Software Control • Automatic RECALL to SRAM on Power Up • Unlimited RECALL Cycles • 1 Million STORE Cycles • 100-Year Non-volatile Data Retention • Single 5V ± 10% Power Supply • Commercial, Industrial, Military Temperatures • 28-pin 330-mil SOIC, 300-mil PDIP, and 600-mil PDIP Packages (RoHS-Compliant) • 28-Pin CDIP and LCC Military Packages
Block Diagram
VCCX VCAP
QUANTUM TRAP 128 x 512
POWER CONTROL
ROW DECODER
A5 A6 A7 A8 A9 A11 A12
STORE STATIC RAM ARRAY 128 X 512 RECALL
STORE/ RECALL CONTROL
SOFTWARE DETECT
A0 – A12
DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7
INPUT BUFFERS
COLUMN I/O COLUMN DEC
A 0 A 1 A 2 A 3 A 4 A10
G E W
This product conforms to specifications per the terms of Simtek standard warranty.
The product has completed Simtek internal qualification testing and has reached production status.
1
Document Control #ML0008 Rev 0.
7 February 2007
STK12C68 (SMD5962-94599)
Packages
VCAP 1 A12 2 A7 3 A6 A5 A4 A3 A2 A1 4 5 6 7 8 9 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCCX W HSB A8 A9 A11 G A10 E DQ7 DQ6 DQ5 DQ4 DQ3
A0 10...
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