STK14EC8| Datasheet

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STK14EC8
Preliminary
FEATURES
15, 25, 45 ns Read Access and 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 Endurance 20-Year Non-volatile Data Retention Single 3.0V +20%, -10% Operation Commercial, Industrial Temperatures 44-pin 400-mil TSOPII (RoHS-Compliant) 48-ball Fine Pitch Ball Grid Array (FBGA)

512Kx8 Autostore nvSRAM
DESCRIPTION
The Simtek STK14EC8 is a 4MB 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 highest performance, most reliable non-volatile memory available.

BLOCK DIAGRAM
VCC A0 A1 A2 A3 A4 A5 A6 A7 A8 A17 A18 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 Quantum Trap 2048 X 2048 ROW DECODER STORE STATIC RAM ARRAY 2048 X 2048 RECALL STORE/ RECALL CONTROL VCAP

POWER CONTROL

HSB

SOFTWARE DETECT INPUT BUFFERS COLUMN I/O COLUMN DEC

A18 A0

A 9 A 10 A 11 A 12 A 13 A14 A15 A16

G E W
This is a product in development that has fixed target specifications that are subject to change pending characterization results. Simtek Confidential & Proprietary

Document Control #ML0060 Rev 1.1 Jan, 2008