Datasheet > CAT24C042PI-30TE13

CAT24C042PI-30TE13

更新时间： 2022-04-23 23:00:11

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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Advanced

CAT24C161/162(16K), CAT24C081/082(8K)

CAT24C041/042(4K), CAT24C021/022(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 on SDA for 24CXX1

■ 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 CAT24CXXX is a single chip solution to three

popular functions of EEPROM memory, precision reset

controller and watchdog timer. The 24C161/162(16K),

24C081/082(8K),24C041/042(4K)and24C021/022(2K)

feature a I²C Serial CMOS EEPROM. Catalyst's ad-

vanced CMOS technology substantially reduces device

power requirements. The 24CXXX features a 16-byte

pageandisavailablein8-pinDIPor8-pinSOICpackages.

The reset function of the 24CXXX protects the system

duringbrownoutandpowerup/downconditions. During

system failure the watchdog timer feature protects the

microcontroller with a reset signal. 24CXXX features

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

24CXX1 features watchdog timer on the SDA line.

24CXX2 does not feature the watchdog timer function.

BLOCK DIAGRAM

PIN CONFIGURATION

EXTERNAL LOAD

24CXX1/XX2*

SENSE AMPS

SHIFT REGISTERS

OUT

RESET

ACK

RESET

SCL

SDA

WORD ADDRESS

BUFFERS

COLUMN

DECODERS

START/STOP

LOGIC

*All products offered in P and J packages

SDA

PIN FUNCTIONS

E²PROM

XDEC

Pin Name

Function

CONTROL

LOGIC

SDA

Serial Data/Address

Reset I/O

RESET/RESET

DATA IN STORAGE

SCL

Vcc

Clock Input

Power Supply

Do Not Connect

Ground

HIGH VOLTAGE/

TIMING CONTROL

RESET Controller

High

STATE COUNTERS

SCL

V_SS

Precision

SLAVE

ADDRESS

COMPARATORS

Only for

24C161

WATCHDOG

Write Protect

Vcc Monitor

24C1601 BLOCK

RESET/RESET

Doc. No. 25079-00 1/98 M-1

Characteristics subject to change without notice

12 3 4 5 6 7...12

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