Datasheet > CAT24C043

CAT24C043

更新时间： 2024-02-18 15:32:58

品牌	Logo	应用领域
CATALYST		监控控制器可编程只读存储器
页数	文件大小	规格书
12页	89K
描述
Supervisory Circuits with I2C Serial CMOS E2PROM, Precision Reset Controller and Watchdog Timer

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技术参数
数据手册

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CAT24C043 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Base Number Matches：	1

CAT24C043 数据手册

Advanced

CAT24C163(16K), CAT24C083(8K)

CAT24C043(4K), CAT24C023(2K)

Supervisory Circuits with I C Serial CMOS E PROM, Precision Reset Controller and Watchdog Timer

FEATURES

■ Active High or Low Reset Outputs

— Precision Power Supply Voltage Monitoring

— 5V, 3.3V and 3V options

■ Watchdog Timer Input (WDI)

■ Programmable Reset Threshold

■ 400 KHz I C Bus Compatible

■ 1,000,000 Program/Erase Cycles

■ 100 Year Data Retention

■ 2.7 to 6 Volt Operation

■ Low Power CMOS Technology

■ 16 - Byte Page Write Buffer

■ Built-in inadvertent write protection

— V_CCLock Out

■ 8-Pin DIP or 8-Pin SOIC

■ Commercial, Industrial and Automotive

Temperature Ranges

DESCRIPTION

The CAT24CXX3 is a single chip solution to three

popular functions of EEPROM memory, precision reset

controller and watchdog timer. The 24C163(16K),

24C083(8K), 24C043(4K) and 24C023(2K) feature aI²C

Serial CMOS EEPROM Catalyst advanced CMOS tech-

nologysubstantiallyreducesdevicepowerrequirements.

The 24CXX3 features a 16-byte page and is available in

8-pin DIP or 8-pin SOIC packages.

The reset function of the 24CXX3 protects the system

duringbrownoutandpowerup/downconditions. During

system failure the watchdog timer feature protects the

microcontroller with a reset signal. 24CXX3 features

active low reset on pin 2 and active high reset on pin 7.

24CXX3 features watchdog timer on the WDI input pin

(pin 1).

PIN CONFIGURATION

BLOCK DIAGRAM

EXTERNAL LOAD

24CXX3

SENSE AMPS

SHIFT REGISTERS

OUT

WDI

RESET

ACK

RESET

SCL

WORD ADDRESS

BUFFERS

COLUMN

DECODERS

SDA

START/STOP

*All products offered in P and J packages

SDA

LOGIC

PIN FUNCTIONS

E²PROM

XDEC

Pin Name

Function

CONTROL

LOGIC

SDA

Serial Data/Address

Reset I/O

RESET/RESET

SCL

DATA IN STORAGE

Clock Input

Vcc

Power Supply

Ground

HIGH VOLTAGE/

TIMING CONTROL

V_SS

RESET Controller

High

WDI

Watchdog Timer Input

Write Protect

STATE COUNTERS

SCL

Precision

SLAVE

ADDRESS

COMPARATORS

WATCHDOG

Vcc Monitor

24C1601 BLOCK

WDI RESET/RESET

Doc. No. 25080-00 3/98 M-1

Characteristics subject to change without notice

12 3 4 5 6 7...12

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