The X20C16 is a 2K x 8 NOVRAM from Xicor 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 X20C16 is fabricated with advanced CMOS floating gate technol- ogy to achieve high speed with low power and wide power-supply margin. The X20C16 features a compat- ible JEDEC approved pinout for byte-wide memories, for industry standard RAMs, ROMs, EPROMs, and E2PROMs. The NOVRAM design allows data to be easily trans- ferred from RAM to E2PROM (store) and E2PROM to RAM (recall). The store operation is completed in 5ms or less and the recall operation is completed in 10µs or less. An automatic array recall operation reloads the contents of the E2PROM into RAM upon power-up. Xicor NOVRAMS are designed for unlimited write operations to RAM, either from the host or recalls from E2PROM, and a minimum 1,000,000 store operations to the E2PROM. Data retention is specified to be greater than 100 years.
