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STK22C48 Datasheet(PDF) 1 Page - Cypress Semiconductor |
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STK22C48 Datasheet(HTML) 1 Page - Cypress Semiconductor |
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1 / 17 page  STK22C48 16-Kbit (2 K × 8) AutoStore™ nvSRAM Cypress Semiconductor Corporation • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document Number: 001-51000 Rev. *D Revised March 7, 2011 16-Kbit (2 K × 8) AutoStore nvSRAM Features ■ 25 ns and 45 ns access times ■ Hands off automatic STORE on power-down with external 68 µF capacitor ■ STORE to QuantumTrap™ nonvolatile elements is initiated by software, hardware, or AutoStore™ on power-down ■ RECALL to SRAM initiated by software or power-up ■ Unlimited read, write, and RECALL cycles ■ 1,000,000 STORE cycles to QuantumTrap ■ 100 year data retention to QuantumTrap ■ Single 5 V +10% operation ■ Commercial and industrial temperatures ■ 28-pin 300 mil and (330 mil) Small outline integrated circuit (SOIC) package ■ Restriction of hazardous substances (RoHS) compliant Functional Description The Cypress STK22C48 is a fast static RAM with a nonvolatile element in each memory cell. The embedded nonvolatile elements incorporate QuantumTrap technology producing the world’s most reliable nonvolatile memory. The SRAM provides unlimited read and write cycles, while independent nonvolatile data resides in the highly reliable QuantumTrap cell. Data transfers from the SRAM to the nonvolatile elements (the STORE operation) takes place automatically at power-down. On power-up, data is restored to the SRAM (the RECALL operation) from the nonvolatile memory. A hardware STORE is initiated with the HSB pin. STORE/ RECALL CONTROL POWER CONTROL STATIC RAM ARRAY 32 X 512 Quantum Trap 32 X 512 STORE RECALL COLUMN I/O COLUMN DEC OE CE WE HSB VCC VCAP A0 A1 A2 A3 A4 A10 A5 A6 A7 A8 A9 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 Logic Block Diagram [+] Feedback |
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Similar Description - STK22C48 |
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