DESCRIPTION

The Xicor X20C05 is a 512 x 8 NOVRAM featuring a high-speed static RAM overlaid bit-for-bit with a nonvolatile electrically erasable PROM (E2PROM). The X20C05 is fabricated with advanced CMOS floating gate technology to achieve high speed with low power and wide power-supply margin. The X20C05 features the JEDEC approved pinout for byte-wide memories, compatible with industry standard RAMs, ROMs, EPROMs, and E2PROMs.

FEATURES

• Fast Access Time: 35ns, 45ns, 55ns

• High Reliability

—Endurance: 1,000,000 Nonvolatile Store Operations

—Retention: 100 Years Minimum

• Power-on Recall

—E2PROM Data Automatically Recalled Into SRAM Upon Power-up

• AUTOSTORE™ NOVRAM

—User Enabled Option

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

—Open Drain AUTOSTORE Status Output Pin

• Software Data Protection

—Locks Out Inadvertent Store Operations

• Low Power CMOS

—Standby: 250µA

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

• Upward compatible with X20C16 (16K)