X20C04DMB datasheet, PDF - EEWORLD Datasheet

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X20C04DMB: DescriptionNonvolatile Static RAM; File Size65KB，15 Pages; ManufacturerXicon Passive Components; Websitehttp://www.xicor.com

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X20C04DMB Overview

Nonvolatile Static RAM

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X20C04

Nonvolatile Static RAM

512 x 8 Bit

FEATURES

DESCRIPTION

The Xicor X20C04 is a 512 x 8 NOVRAM featuring a

static RAM overlaid bit-for-bit with a nonvolatile electri-

cally erasable PROM (E

PROM). The X20C04 is fabri-

cated with advanced CMOS floating gate technology to

achieve low power and wide power-supply margin. The

X20C04 features the JEDEC approved pinout for byte-

wide memories, compatible with industry standard RAMs,

ROMs, EPROMs, and E

PROMs.

The NOVRAM design allows data to be easily trans-

ferred from RAM to E

PROM (store) and E

PROM to

RAM (recall). The store operation is completed in 5ms or

less and the recall operation is completed in 5µs or less.

Xicor NOVRAMS are designed for unlimited write

operations to RAM, either from the host or recalls from

PROM, and a minimum 1,000,000 store operations to

the E

PROM. Data retention is specified to be greater

than 100 years.

•

High Reliability

—Endurance: 1,000,000 Nonvolatile Store

Operations

—Retention: 100 Years Minimum

Power-on Recall

—E

PROM Data Automatically Recalled Into

SRAM Upon Power-up

Lock Out Inadvertent Store Operations

Low Power CMOS

—Standby: 250

Infinite E

PROM Array Recall, and RAM Read

and Write Cycles

Compatible with X2004

PIN CONFIGURATION

PLASTIC

CERDIP

LCC

PLCC

VCC

I/O0

I/O1

I/O2

VSS

X20C04 21

VCC

I/O7

I/O6

I/O5

I/O4

I/O3

I/O0

1 32 31 30

I/O7

I/O6

X20C04

(TOP VIEW)

14 15 16 17 18 19 20

I/O1

I/O2

VSS

I/O3

I/O4

I/O5

3825 FHD F02

3825 FHD F03

3825-2.8 7/31/97 T4/C0/D0 SH

Characteristics subject to change without notice

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