STK16C88-3 Datasheet | Simtek

.. 32K x 8 Auto Store Plus™ nv SRAM 3.3V Quantum Trap™ CMOS Nonvolatile Static RAM Features - Transparent Data Save on Power Down - Internal Capacitor Guarantees Auto Store™ Regardless of Power-Down Slew Rate - Directly Replaces 32K x 8 Static RAM, Battery Backed RAM or EEPROM - 35 Access Time - STORE to Nonvolatile Elements Initiated by Software or Auto Store Plus™ - RECALL to SRAM Initiated by Software or Power Restore - 10m A Typical ICC at 200ns Cycle Time - Unlimited READ, WRITE and RECALL Cycles - 1,000,000 STORE Cycles to Nonvolatile Elements (mercial/Industrial) - 100-Year Data Retention in nonvolatile elements (mercial/Industrial) - Single 3.3V + 0.3V Operation - mercial and Industrial Temperatures - 28-Pin PDIP Package BLOCK DIAGRAM QUANTUM TRAP 512 x 512 VCC STORE/ RECALL CONTROL DESCRIPTION The STK16C88-3 is a fast SRAM 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 transfers from the SRAM to the Nonvolatile Elements (the STORE operation) can take place automatically on power down. An internal capacitor guarantees the STORE operation regardless of power-down slew rate. Transfers from the Nonvolatile Elements to the SRAM (the RECALL operation) take place automatically on restoration of power. Initiation of STORE and RECALL cycles can also be controlled by entering control sequences on the SRAM inputs. The STK16C88-3 is pin-patible with 32k x 8 SRAMs and battery-backed SRAMs, allowing direct substitution while providing superior performance. The STK14C88-3, which uses an external capacitor, is also available. PIN CONFIGURATIONS A14 A12 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 19 18 17 16 15 A5 A6 A7 A8 A9 A11 A12 A13 A14 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 STORE STATIC RAM ARRAY 512 x 512 RECALL POWER...