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STK12C68 Datasheet

  • STK12C68

  • 8Kx8 AutoStore nvSRAM

  • 526.08KB

  • 20頁

  • SIMTEK

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STK12C68 (SMD5962-94599)
8Kx8 AutoStore nvSRAM
FEATURES
鈥?25, 35, 45, 55 ns Read Access & Write Cycle Time
鈥?Unlimited Read/Write Endurance
鈥?Automatic Non-volatile STORE on Power Loss
鈥?Non-Volatile STORE Under Hardware or Software
Control
鈥?Automatic RECALL to SRAM on Power Up
鈥?Unlimited RECALL Cycles
鈥?1 Million STORE Cycles
鈥?100-Year Non-volatile Data Retention
鈥?Single 5V 鹵 10% Power Supply
鈥?Commercial, Industrial, Military Temperatures
鈥?28-pin 330-mil SOIC, 300-mil PDIP, and 600-mil
PDIP Packages (RoHS-Compliant)
鈥?28-Pin CDIP and LCC Military Packages
DESCRIPTION
The Simtek STK12C68 is a 64Kb fast static RAM
with a non-volatile 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.
Block Diagram
V
CCX
V
CAP
QUANTUM TRAP
128 x 512
POWER
CONTROL
ROW DECODER
A
5
A
6
A
7
A
8
A
9
A
11
A
12
STORE
STATIC RAM
ARRAY
128 X 512
RECALL
STORE/
RECALL
CONTROL
SOFTWARE
DETECT
A
0
鈥?A
12
DQ
0
DQ
1
DQ
2
DQ
3
DQ
4
DQ
5
DQ
6
DQ
7
INPUT BUFFERS
COLUMN I/O
COLUMN DEC
A
0
A
1
A
2
A
3
A
4
A
10
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 #ML0008 Rev 0.7
February 2007

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