X20C17PI-55中文資料Xicor數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

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