STK12C68 (SMD5962-94599)
8Kx8 AutoStore nvSRAM
DESCRIPTION
FEATURES
• 25, 35, 45, 55 ns Read Access & Write Cycle Time
The Simtek STK12C68 is a 64Kb fast static RAM
with a non-volatile Quantum Trap storage element
included with each memory cell.
• Unlimited Read/Write Endurance
• Automatic Non-volatile STORE on Power Loss
The SRAM provides the fast access & cycle times,
ease of use and unlimited read & write endurance of
a normal SRAM.
• Non-Volatile STORE Under Hardware or Software
Control
• Automatic RECALL to SRAM on Power Up
• Unlimited RECALL Cycles
Data transfers automatically to the non-volatile stor-
age 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.
• 1 Million STORE Cycles
• 100-Year Non-volatile Data Retention
• Single 5V ± 10% Power Supply
• Commercial, Industrial, Military Temperatures
The Simtek nvSRAM is the first monolithic non-vola-
tile memory to offer unlimited writes and reads. It is
the highest performance, most reliable non-volatile
memory available.
• 28-pin 330-mil SOIC, 300-mil PDIP, and 600-mil
PDIP Packages (RoHS-Compliant)
• 28-Pin CDIP and LCC Military Packages
Block Diagram
VCAP
VCCX
POWER
CONTROL
QUANTUM TRAP
128 x 512
STORE
RECALL
A5
A6
A7
A8
STORE/
RECALL
CONTROL
STATIC RAM
ARRAY
128 X 512
A9
A11
A12
SOFTWARE
DETECT
A0 – A12
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
COLUMN I/O
COLUMN DEC
A0 A1 A2 A3 A4 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.
Rev 0.7
Document Control #ML0008
February 2007
1
SIMTEK [ SIMTEK CORPORATION ]
