STK14C88
32Kx8 AutoStore nvSRAM
FEATURES
DESCRIPTION
• 25, 35, 45 ns Read Access & R/W Cycle Time
The Simtek STK14C88 is a 256Kb fast static RAM
with a non-volatile Quantum Trap storage element
included with each memory cell.
• 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.
• 1 Million STORE Cycles
• 100-Year Non-volatile Data Retention
• Single 5V +10% Power Supply
• Commercial, Industrial, Military Temperatures
• 32-Pin 300 mil SOIC (RoHS-Compliant)
• 32-pin CDIP and LCC Packages
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
V
CAP
CCX
Quantum Trap
512 x 512
POWER
CONTROL
A
A
A
A
A
A
A
A
A
5
STORE
6
7
STORE/
RECALL
CONTROL
STATIC RAM
ARRAY
512 x 512
8
HSB
RECALL
9
11
12
13
14
SOFTWARE
DETECT
A - A
0
13
DQ
DQ
DQ
0
1
2
COLUMN I/O
COLUMN DEC
DQ
DQ
3
4
DQ
DQ
DQ
5
6
7
A A A A A
A
10
0
1
2
3
4
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 2.0
Document Control #ML0014
Feb, 2008
1
SIMTEK [ SIMTEK CORPORATION ]
