STK14D88

www.DataSheet4U.com 32Kx8 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 3V +20%, -10% Power Supply Commercial, Industrial Temperatures Small Footprint SOIC & SSOP Packages (RoHSCompliant STK14D88 DESCRIPTION The Simtek STK14D88 is a 256Kb 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 Quatum Trap 512 X 512 ROW DECODER STORE STATIC RAM ARRAY 512 X 512 RECALL VCC VCAP A5 A6 A7 A8 A9 A11 A12 A13 A14 POWER CONTROL STORE/ RECALL CONTROL HSB SOFTWARE DETECT INPUT BUFFERS COLUMN I/O COLUMN DEC A13 – A0 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 A0 A1 A2 A3 A4 A10 G E W This produ...