DESCRIPTION
The Simtek STK11C88 is a fast static RAM with a nonvolatile, electrically erasable PROM 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 SRAMto the EEPROM(the STOREoperation), or from EEPROM to SRAM(the RECALLoperation), take place using a software sequence. Transfers from the EEPROM to the SRAM(the RECALLoperation) also take place automatically on restoration of power.
FEATURES
• 20ns, 25ns, 35ns and 45ns Access Times
• STOREto EEPROM Initiated by Software
• RECALLto SRAM Initiated by Software or
Power Restore
• 10mA Typical ICC at 200ns Cycle Time
• Unlimited READ, WRITE and RECALLCycles
• 1,000,000 STORECycles to EEPROM
• 100-Year Data Retention in EEPROM
• Commercial and Industrial Temperatures
• 28-Pin PDIP and SOIC Packages
