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X25043

更新时间： 2024-11-13 22:41:23

品牌	Logo	应用领域
XICOR		监控可编程只读存储器
页数	文件大小	规格书
15页	95K
描述
Programmable Watchdog Supervisory E2PROM

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中文翻译

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X25043 数据手册

APPLICATION NOTES

A V A I L A B L E

AN11 • AN21

X25043/45

512 x 8 Bit

Programmable Watchdog Supervisory E²PROM

FEATURES

DESCRIPTION

The X25043/45 combines three popular functions,

Watchdog Timer, Voltage Supervision, and E²PROM in

a single package. This combination lowers the system

cost and reduces the board space requirements.

• Programmable Watchdog Timer

• Low V_CCDetection

• Reset Signal Valid to V_CC= 1V

• 1MHz Clock Rate

• 512 X 8 Bits Serial E²PROM

—4 Byte Page Mode

• Low Power CMOS

—50µA Standby Current

—3mA Active Current

The Watchdog Timer provides an independent protec-

tionsystemformicrocontrollers.Duringasystemfailure,

the X25043/45 watchdog will respond with a RESET/

RESET signal after a selectable time-out interval. The

user selects the interval from three preset values. Once

selected, the interval does not change, even after cy-

cling the power.

• 2.7V To 5.5V Power Supply

• Block Lock^TM

—Protect 1/4, 1/2 or all of E²PROM Array

• Built-in Inadvertent Write Protection

—Power-Up/Power-Down protection circuitry

—Write Latch

The system is protected from low voltage conditions by

the X25043/45 low V_CCdetection circuits. When V_CC

drops below the minimum V_CCtrip point, the system is

reset. Reset is asserted until V_CCreturns and stabilizes.

—Write Protect Pin

• High Reliability

ThememoryportionoftheX25043/45 isaCMOS4096-

bit serial E²PROM, internally organized as 512 X 8. The

X25043/45 features a Serial Peripheral Interface (SPI)

and software protocol allowing operation on a simple

three-wire bus.

—Endurance: 100,000 cycles per byte

—Data Retention: 100 Years

—ESD protection: 2000V on all pins

• Available Packages

—8-Lead PDlP

—8-Lead SOIC

—14-Lead TSSOP

• X25043 = Active LOW RESET

• X25045 = Active HIGH RESET

TheX25043/45utilizesXicor’sproprietaryDirectWrite™

cell, providing a minimum endurance of 100,000 cycles

per byte and a minimum data retention of 100 years.

DIE PHOTOGRAPH

PROGRAMMABLE

VOLTAGE

SENSOR

RESET

CONTROL

LOGIC

SERIAL

INTERFACE

LOGIC

4K BITS E PROM

HIGH VOLTAGE GENERATOR

AND

CONTROL

3844 ILL F01

Characteristics subject to change without notice

Direct Write™ is a trademark of Xicor, Inc.

3844-6.5 5/9/96 T4/C2/D2 NS

12 3 4 5 6 7...15

中文翻译

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与X25043相关器件

型号	品牌	获取价格	描述	数据表
X25043P	RENESAS	获取价格	512X8 SPI BUS SERIAL EEPROM, PDIP8, PLASTIC, DIP-8
X25043P	XICOR	获取价格	Programmable Watchdog Supervisory E2PROM
X25043P-2.7	XICOR	获取价格	Programmable Watchdog Supervisory E2PROM
X25043P-2.7	RENESAS	获取价格	512X8 SPI BUS SERIAL EEPROM, PDIP8, PLASTIC, DIP-8
X25043P-3	ETC	获取价格	SPI Serial EEPROM with Supervisory Features
X25043PI	RENESAS	获取价格	512X8 SPI BUS SERIAL EEPROM, PDIP8, PLASTIC, DIP-8
X25043PI	XICOR	获取价格	Programmable Watchdog Supervisory E2PROM
X25043PI-2.7	XICOR	获取价格	Programmable Watchdog Supervisory E2PROM
X25043PI-2.7	RENESAS	获取价格	512X8 SPI BUS SERIAL EEPROM, PDIP8, PLASTIC, DIP-8
X25043PI-3	ETC	获取价格	SPI Serial EEPROM with Supervisory Features

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