X24C45PI datasheet(1/14 Pages) XICOR

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X24C45

1

Serial AUTOSTORE™ NOVRAM

Characteristics subject to change without notice

3833-1.5 6/10/96 T3/C3/D0 NS

DESCRIPTION

The Xicor X24C45 is a serial 256 bit NOVRAM featuring

a static RAM configured 16 x 16, overlaid bit-by-bit with

a nonvolatile E2PROM array. The X24C45 is fabricated

with Xicor’s Advanced CMOS Floating Gate technology.

The Xicor NOVRAM design allows data to be transferred

between the two memory arrays by means of software

commands or external hardware inputs. A store opera-

tion (RAM data to E2PROM) is completed in 5ms or less

and a recall operation (E2PROM data to RAM) is com-

pleted in 2

µs or less.

The X24C45 also includes the AUTOSTORE feature, a

user selectable feature that automatically performs a

store operation when VCC falls below a preset threshold.

Xicor NOVRAMs are designed for unlimited write opera-

tions to RAM, either from the host or recalls from E2PROM

and a minimum 1,000,000 store operations. Inherent data

retention is specified to be greater than 100 years.

FEATURES

• AUTOSTORE™ NOVRAM

—Automatically Performs a Store Operation

Upon Loss of VCC

• Single 5 Volt Supply

• Ideal for use with Single Chip Microcomputers

—Minimum I/O Interface

—Serial Port Compatible (COPS™, 8051)

—Easily Interfaced to Microcontroller Ports

• Software and Hardware Control of Nonvolatile

Functions

• Auto Recall on Power-Up

• TTL and CMOS Compatible

• Low Power Dissipation

—Active Current: 10mA

—Standby Current: 50

µA

• 8-Lead PDIP and 8-Lead SOIC Packages

• High Reliability

—Store Cycles: 1,000,000

—Data Retention: 100 Years

256 Bit

X24C45

16 x 16 Bit

3833 FHD F01

FUNCTIONAL DIAGRAM

NONVOLATILE

E

2

PROM

CONTROL

LOGIC

COLUMN

DECODE

ROW

DECODE

4-BIT

COUNTER

INSTRUCTION

DECODE

INSTRUCTION

REGISTER

CE (1)

DI (3)

SK (2)

DO (4)

RECALL (6)

AS (7)

STATIC

RAM

256-BIT

AUTOSTORE™ NOVRAM is a trademark of Xicor, Inc.

COPS is a trademark of National Semiconductor Corp.

APPLICATION NOTES

A V AILABLE

AN3 • AN7 • AN8 • AN15 • AN16 • AN25 • AN29

• AN30 • AN35 • AN36 • AN39 • AN56 • AN69

Số phần tương tự - X24C45PI

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Intersil Corporation	X24C45PI	192Kb / 12P	Serial AUTOSTORE NOVRAM June 1, 2005
Renesas Technology Corp	X24C45PI	499Kb / 12P	256 Bit, 16 x 16 Bit Serial AUTOSTORE™ NOVRAM June 1, 2005
Renesas Technology Corp	X24C45PI-V	499Kb / 12P	256 Bit, 16 x 16 Bit Serial AUTOSTORE™ NOVRAM June 1, 2005

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Mô tả tương tự - X24C45PI

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Renesas Technology Corp	X24C45	499Kb / 12P	256 Bit, 16 x 16 Bit Serial AUTOSTORE™ NOVRAM June 1, 2005

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