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STK14D88-RF25ITR Fiches technique(PDF) 1 Page - Simtek Corporation |
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STK14D88-RF25ITR Fiches technique(HTML) 1 Page - Simtek Corporation |
1 / 20 page STK14D88 1 Jan 2008 Document Control #ML0033 Rev 2.0 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. 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 3.0V +20%, -10% Power Supply • Commercial, Industrial Temperatures • Small Footprint SOIC & SSOP Packages (RoHS- Compliant 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 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. 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 32Kx8 Autostore nvSRAM COLUMN DEC G E W COLUMN I/O POWER CONTROL HSB STORE/ RECALL CONTROL SOFTWARE DETECT A13 – A0 A5 A6 A7 A8 A9 A11 A12 A13 A14 Quatum Trap 512 X 512 STATIC RAM ARRAY 512 X 512 STORE RECALL DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 A0 A1 A2 A3 A4 A10 VCC VCAP |
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