128Kx8 Autostore nvSRAM
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128Kx8 Autostore nvSRAM
FEATURES
• 25, 35, 45 ns Read Access & R/W Cycle Time • Unlimited Read/Writ...
Description
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128Kx8 Autostore nvSRAM
FEATURES
25, 35, 45 ns Read Access & R/W Cycle Time Unlimited Read/Write Endurance Automatic Non-volatile STORE on Power Loss Non-Volatile STORE Under Hardware or Software Control Automatic RECALL to SRAM on Power Up Unlimited RECALL Cycles 200K STORE Cycles 20-Year Non-volatile Data Retention Single 3 V + 20%, -10% Power Supply Commercial and Industrial Temperatures Small Footprint SOIC & SSOP Packages (RoHSCompliant)
STK14CA8
DESCRIPTION
The Simtek STK14CA8 is a 1Mb 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 storage 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-volatile memory to offer unlimited writes and reads. It is the highest performance, most reliable non-volatile memory available.
BLOCK DIAGRAM
Quantum Trap 1024 X 1024 ROW DECODER STORE STATIC RAM ARRAY 1024 X 1024 RECALL VCC VCAP
A5 A6 A7 A8 A9 A12 A13 A14 A15 A16 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7
POWER CONTROL STORE/ RECALL CONTROL
HSB
SOFTWARE DETECT INPUT BUFFERS COLUMN I/O COLUMN DEC
A15 – A0
A0 A1 A2 A3 A4 A10 A11
...
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