STK16C88

www.DataSheet4U.com STK16C88 32K x 8 AutoStorePlus™ nvSRAM QuantumTrap™ CMOS Nonvolatile Static RAM FEATURES Transparent Data Save on Power Down Internal Capacitor Guarantees AutoStore™ Regardless of Power-Down Slew Rate Nonvolatile Storage without Battery Problems Directly Replaces 32K x 8 Static RAM, BatteryBacked RAM or EEPROM 25ns, 35ns and 45ns Access Times STORE to EEPROM Initiated by Software or AutoStorePlus™ on Power Down No Data Loss from Undershoot RECALL to SRAM Initiated by Software or Power Restore 10mA Typical ICC at 200ns Cycle Time Unlimited READ, WRITE and RECALL Cycles 1,000,000 STORE Cycles to EEPROM 100-Year Data Retention over Full Industrial Temperature Range Commercial and Industrial Temperatures 28-Pin PDIP Package DESCRIPTION The STK16C88 is a fast SRAM with a nonvolatile EEPROM 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 EEPROM. Data transfers from the SRAM to the EEPROM (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 EEPROM 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 is pin-compatible with 32k x 8 SRAMs and battery-backed...