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STK22C48 Datasheet(PDF) 1 Page - Simtek Corporation

Part No. STK22C48
Description  2Kx8 AutoStore nvSRAM
Download  15 Pages
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Maker  SIMTEK [Simtek Corporation]
Homepage  http://www.simtek.com
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STK22C48 Datasheet(HTML) 1 Page - Simtek Corporation

 
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STK22C48
1
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.
February 2007
Document Control #ML0004 Rev 0.3
FEATURES
• 25, 45 ns Read Access & R/W Cycle Times
• Unlimited Read/Write Endurance
• Automatic Non-Volatile STORE on Power Loss
• Non-Volatile STORE Under Hardware Control
• Automatic RECALL to SRAM on Power Up
• Unlimited RECALL Cycles
• 1 Million STORE Cycles
• 100-Year Non-volatile Data Retention
• Single 5V + 10% Operation
• Commercial, Industrial, and Military
Temperatures
• 28-Pin 300 mil SOIC or 330 mil SOIC (RoHS-
Compliant)
DESCRIPTION
The Simtek STK22C48 is a 16Kb fast static RAM with
a nonvolatile Quantum Trap storage element included
with each memory cell.
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 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.
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.
2Kx8 AutoStore nvSRAM
BLOCK DIAGRAM
COLUMN I/O
COLUMN DEC
STATIC RAM
ARRAY
32 x 512
Quantum Trap
32 x 512
STORE/
RECALL
CONTROL
STORE
RECALL
POWER
CONTROL
A5
A6
A9
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
G
E
W
A8
A7
A10
A3
A2
A0 A1
A4
VCCX VCAP
HSB


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