DESCRIPTION

The Xicor X20C17 is a 2K x 8 NOVRAM featuring a high speed static RAM overlaid bit-for-bit with a nonvolatile electrically erasable PROM (E2PROM) and the AUTOSTORE feature which automatically saves the RAM contents to E2PROM at power-down. The X20C17 is fabricated with advanced CMOS floating gate technology to achieve high speed with low power and wide power-supply margin. The X20C17 features a compatible JEDEC approved byte-wide memory pinout for industry standard SRAMs.

FEATURES

• 24-Pin Standard SRAM DIP Pinout

• Fast Access Time: 35ns, 45ns, 55ns

• High Reliability

—Endurance: 1,000,000 Nonvolatile Store Operations

—Retention: 100 Years Minimum

• AUTOSTORE™ NOVRAM

—Automatically Stores SRAM Data Into the E2PROM Array When VCC Low Threshold is Detected

—E2PROM Data Automatically Recalled Into RAM Upon Power-up

• Low Power CMOS

—Standby: 250µA

• Infinite E2PROM Array Recall, and RAM Read and Write Cycles