STK16C88-3
32Kx8 AutoStore+ nvSRAM
FEATURES
DESCRIPTION
• Fast 35 ns Read Access & R/W Cycle Time
The Simtek STK16C88-3 is a 256Kb fast static RAM
with a non-volatile Quantum Trap storage element
included with each memory cell.
• Directly Replaces Battery-Backed SRAM
Modules such as Dallas/Maxim DS1230W
• Unlimited Read/Write Endurance
• Automatic Non-volatile STORE on Power Loss
• 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.
• Non-Volatile STORE and RECALL Under
Software Control
• 1 Million STORE Cycles
• 100-Year Non-volatile Data Retention
• Single 3.3V +0.3V Power Supply
• Commercial and Industrial Temperatures
• 28-pin 600-mil PDIP Package (RoHS-Compliant)
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.
BLOCK DIAGRAM
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
STORE
STATIC RAM
ARRAY
512 X 512
STORE/
RECALL
CONTROL
RECALL
SOFTWARE
DETECT
INPUT BUFFERS
A5
A6
A7
A8
A9
A11
A12
A13
A14
ROW DECODER
QUANTUM TRAP
512 x 512
A13 – A0
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 #ML0019 Rev 2.0
Jan, 2008
