器件名称:
STK20C04-W45
功能描述:
512 x 8 nvSRAM QuantumTrap
文件大小:
428.73KB 共12页
简 介:
STK20C04 512 x 8 nvSRAM QuantumTrap CMOS Nonvolatile Static RAM Obsolete - Not Recommend for new Designs FEATURES 25ns, 35ns and 45ns Access Times STORE to Nonvolatile Elements Initiated by Hardware RECALL to SRAM Initiated by Hardware or Power Restore Automatic STORE Timing 10mA Typical ICC at 200ns Cycle Time Unlimited READ, WRITE and RECALL Cycles 1,000,000 STORE Cycles to Nonvolatile Elements 100-Year Data Retention over Full Industrial Temperature Range Commercial and Industrial Temperatures DESCRIPTION The Simtek STK20C04 is a fast static RAM with a nonvolatile element incorporated in each static memory cell. The SRAM can be read and written an unlimited number of times, while independent nonvolatile data resides in nonvolatile elements. Data may easily be transferred from the SRAM to the Nonvolatile Elements (the STORE operation), or from the Nonvolatile Elements to the SRAM (the RECALL operation), using the NE pin. Transfers from the Nonvolatile Elements to the SRAM (the RECALL operation) also take place automatically on restoration of power. The STK20C04 combines the high performance and ease of use of a fast SRAM with nonvolatile data integrity. The STK20C04 features industry-standard pinout for nonvolatile RAMs in a 28-pin 600 mil plastic DIP. BLOCK DIAGRAM Quantum Trap 16 x 256 ROW DECODER STORE STATIC RAM ARRAY 16 x 256 RECALL PIN CONFIGURATIONS NE NC A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 VSS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 1……
