STK12C68, STK12C68-5 (SMD5962-94599)
8Kx8 AutoStore nvSRAM
FEATURES
DESCRIPTION
• 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
• Non-Volatile STORE Under Hardware or Software
Control
• Automatic RECALL to SRAM on Power Up
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.
• Unlimited RECALL Cycles
• 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-volatile 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
Vcc
A5
A6
A7
A8
A9
A11
A12
ROW DECODER
QUANTUM TRAP
128 x 512
STORE
STATIC RAM
ARRAY
128 X 512
RECALL
VCAP
POWER
CONTROL
STORE/
RECALL
CONTROL
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
INPUT BUFFERS
SOFTWARE
DETECT
A0 – A12
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 2.0
June, 2008
