DESCRIPTION

The STK25C48 is a fast SRAMwith 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 the Nonvolatile Elements. Data transfers from the SRAMto the Nonvolatile Elements(the STOREoperation) can take place automatically on power down using charge stored in system

capacitance.

FEATURES

• Nonvolatile Storage without Battery Problems

• Directly Replaces 2K x 8 Static RAM, Battery-Backed RAM or EEPROMs

• 25ns, 35ns and 45ns Access Times

• STOREto Nonvolatile Elements Initiated by AutoStore™ on Power Down

• RECALLto SRAM Initiated by Power Restore

• 10mA Typical ICC at 200ns Cycle Time

• Unlimited READ, WRITE and RECALLCycles

• 1,000,000 STORECycles to Nonvolatile Elements

• 100-Year Data Retention over Full Industrial Temperature Range

• Commercial and Industrial Temperatures

• 24-Pin 600 PDIP Package