STK14D88
32Kx8 Autostore nvSRAM
DESCRIPTION
FEATURES
The Simtek STK14D88 is a 256Kb fast static RAM
with a non-volatile Quantum Trap storage element
included with each memory cell.
• 25, 35, 45 ns Read Access & R/W Cycle Time
• 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.
• 200K STORE Cycles
• 20-Year Non-volatile Data Retention
• Single 3V +20%, -10% Power Supply
• Commercial, 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.
• Small Footprint SOIC & SSOP Packages (RoHS-
Compliant
BLOCK DIAGRAM
VCAP
VCC
Quatum Trap
512 X 512
A5
A6
A7
POWER
CONTROL
STORE
A8
A9
A11
A12
A13
A14
STORE/
RECALL
CONTROL
STATIC RAM
ARRAY
512 X 512
RECALL
HSB
SOFTWARE
DETECT
A13 – A0
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 1.7
1
Document Control #ML0033
February 2007
SIMTEK [ SIMTEK CORPORATION ]
