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STK22C48-NF25I Datasheet

  • STK22C48-NF25I

  • 2Kx8 AutoStore nvSRAM

  • 229.80KB

  • 15頁

  • SIMTEK

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STK22C48
2Kx8 AutoStore nvSRAM
FEATURES
鈥?25, 45 ns Read Access & R/W Cycle Times
鈥?Unlimited Read/Write Endurance
鈥?Automatic Non-Volatile
STORE
on Power Loss
鈥?Non-Volatile
STORE
Under Hardware 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 + 10% Operation
鈥?Commercial, Industrial, and Military
Temperatures
鈥?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.
BLOCK DIAGRAM
V
CCX
V
CAP
Quantum Trap
32 x 512
POWER
CONTROL
A
5
A
6
A
7
A
8
A
9
ROW DECODER
STORE
STATIC RAM
ARRAY
32 x 512
RECALL
STORE/
RECALL
CONTROL
HSB
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 #ML0004 Rev 0.3
February 2007

STK22C48-NF25I 產(chǎn)品屬性

  • STK22C48

  • 54

  • 集成電路 (IC)

  • 存儲器

  • -

  • RAM

  • NVSRAM（非易失 SRAM）

  • 16K (2K x 8)

  • 25ns

  • 并聯(lián)

  • 4.5 V ~ 5.5 V

  • -40°C ~ 85°C

  • 28-SOIC（0.295"，7.50mm 寬）

  • 28-SOIC

  • 管件

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