STK14CC8
512K x 8 AutoStoreTM nvSRAM
QuantumTrapTM CMOS
Nonvolatile Static RAM
Advanced Information
FEATURES
DESCRIPTION
• 25ns Time
The Simtek STK14CC8 is a fast static RAM with a
nonvolatile element in each memory cell. The
embedded nonvolatile elements incorporate
• “Hands-off” Automatic STORE on Power Down
with only a small capacitor
Simtek’s QuantumTrapTM 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 QuantumTrapTM 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.
• STORE to QuantumTrap™ Nonvolatile
Elements is Initiated by Software , device pin
or AutoStore™ on Power Down
• RECALL to SRAM Initiated by Software or
Power Up
• Unlimited READ, WRITE and RECALL Cycles
• 10mA Typical ICC at 200ns Cycle Time
• 500,000 STORE Cycles to QuantumTrap™
• 100-Year Data Retention to QuantumTrap™
• Single 3V +20%, -10% Operation
• Commercial and Industrial Temperatures
• SSOP package
• RoHS Compliance
BLOCK DIAGRAM
VCC
VCAP
Quantum Trap
2048 X 2048
A8
A9
POWER
A10
A11
A12
A13
A14
A15
A16
A17
A18
CONTROL
STORE
RECALL
STORE/
RECALL
CONTROL
STATIC RAM
ARRAY
2048 X 2048
HSB
SOFTWARE
DETECT
A18 – A0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
COLUMN I/O
COLUMN DEC
A0 A1 A2 A3 A4 A5 A6 A7
G
E
W
Figure 1. Block Diagram
September 2005
1
Document Control #ML0034 rev 0.0
SIMTEK [ SIMTEK CORPORATION ]
