STK14C88-3
32Kx8 AutoStore nvSRAM
FEATURES
DESCRIPTION
• 35, 45 ns Read Access & R/W Cycle Time
The Simtek STK14C88-3 is a 256Kb 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 3.3V ± 10% Power Supply
• Commercial and Industrial 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.
• 32-Pin 300 mil SOIC and 600 mil PDIP Pack-
ages (RoHS-Compliant)
BLOCK DIAGRAM
V
CCX
VCAP
Quatum Trap
512 X 512
STORE
RECALL
A5
A6
A7
A8
POWER
CONTROL
STORE
/
STATIC RAM
ARRAY
512 X 512
A9
RECALL
CONTROL
A11
A12
A13
A14
HSB
SOFTWARE
DETECT
A13 – A0
DQ 0
DQ 1
DQ 2
DQ 3
DQ 4
DQ 5
DQ 6
DQ 7
COLUMN I/O
COLUMN DEC
A0 A1 A2 A 3 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 0.6
Document Control #ML0015
February 2007
1
SIMTEK [ SIMTEK CORPORATION ]
