Functional Description

The Cypress STK22C48 is a faststatic RAM with a nonvolatile element in each memory cell. The embedded nonvolatile elements incorporate QuantumTrap technology producing the world’s most reliable nonvolatile memory.

Features

■25 ns and 45 ns access times

■Hands off automatic STORE on power down with external 68µF capacitor

■STORE to QuantumTrap™ nonvolatile elements is initiated by software, hardware, or AutoStore™ on power down

■RECALL to SRAM initiated by software or power up

■Unlimited Read, Write, and Recall cycles

■1,000,000 STORE cycles to QuantumTrap

■100 year data retention to QuantumTrap

■Single 5V+10% operation

■Commercial and industrial temperatures

■28-pin 300 mil and (330 mil) SOIC package

■RoHS compliance