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)