X20C16SM-35 datasheet, PDF - EEWORLD Datasheet

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X20C16SM-35: DescriptionHigh Speed AUTOSTORE⑩ NOVRAM; File Size91KB，21 Pages; ManufacturerXicon Passive Components; Websitehttp://www.xicor.com

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X20C16SM-35 Overview

High Speed AUTOSTORE⑩ NOVRAM

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PPLICATION

OTE

A V A I L A B L E

X20C16

16K

AN56

X20C16

High Speed AUTOSTORE™ NOVRAM

2K x 8 Bit

FEATURES

DESCRIPTION

The Xicor X20C16 is a 2K x 8 NOVRAM featuring a high-

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

electrically erasable PROM (E

PROM) and the

AUTOSTORE feature which automatically saves the

RAM contents to E

PROM 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

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 10µs or

less. An automatic array recall operation reloads the

contents of the E

PROM into RAM upon power-up.

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.

•

Fast Access Time: 35ns, 45ns, 55ns

High Reliability

—Endurance: 1,000,000 Nonvolatile Store

Operations

—Retention: 100 Years Minimum

AUTOSTORE™ NOVRAM

—Automatically Stores RAM Data Into the

PROM Array When V

Low Threshold is

Detected

—User Enabled Option

—Open Drain AUTOSTORE Status Output Pin

Power-on Recall

—E

PROM Data Automatically Recalled Into

RAM Upon Power-up

Software Data Protection

—Locks Out Inadvertent Store Operations

Low Power CMOS

—Standby: 250

Infinite E

PROM Array Recall, and RAM Read

and Write Cycles

PIN CONFIGURATION

PLASTIC

CERDIP

I/O0

I/O1

I/O2

VSS

X20C16 21

VCC

TSOP

N/C

I/O

LCC

PLCC

VCC

A10

I/O7

I/O6

I/O5

I/O4

I/O3

VCC

X20C16

A10

I/O7

I/O6

I/O5

I/O4

I/O3

VSS

I/O2

I/O1

I/O0

X20C16

1 32 31 30

A10

I/O7

I/O6

I/O0

X20C16

(TOP VIEW)

3826 FHD F02

3826 ILL F17.2

14 15 16 17 18 19 20

I/O1

I/O2

VSS

I/O3

I/O4

I/O5

3826 FHD F15.1

3826 FHD F03

AUTOSTORE™ NOVRAM is a trademark of Xicor, Inc.

3826-2.9 7/31/97 T4/C0/D0 SH

Characteristics subject to change without notice

SOIC

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