STK14EC8
512Kx8 Autostore nvSRAM
Preliminary
DESCRIPTION
FEATURES
The Simtek STK14EC8 is a fast static RAM with a
non-volatile Quantum Trap storage element
included with each memory cell.
• 15, 25, 45 ns Read Access and R/W Cycle Time
• 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.
• 200K STORE Endurance
• 20-Year Non-volatile Data Retention
• Single 3.3V +0.3V, -0.6V Power Supply
• Commercial, Industrial Temperatures
• 44-pin 400-mil TSOPII (RoHS-Compliant)
The Simtek nvSRAM is the highest performance,
most reliable non-volatile memory available.
BLOCK DIAGRAM
VCC
VCAP
Quantum Trap
2048 X 2048
A8
A9
POWER
CONTROL
STORE
A10
A11
A12
A13
A14
A15
A16
A17
A18
STORE/
RECALL
CONTROL
STATIC RAM
ARRAY
RECALL
HSB
2048 X 2048
SOFTWARE
DETECT
A18 – A0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
COLUMN I/O
COLUMN DEC
A0 A1 A2 A3 A4 A5 A6 A7
G
E
W
This is a product in development that has fixed tar-
get specifications that are subject to change pend-
ing characterization results.
1
Rev 1.0
Document Control #ML0060
April, 2007
Simtek Confidential & Proprietary
SIMTEK [ SIMTEK CORPORATION ]
