Datasheet > LTC1232

LTC1232

更新时间： 2023-12-20 18:45:59

品牌	Logo	应用领域
亚德诺 - ADI		监控微处理器
页数	文件大小	规格书
8页	113K
描述
微处理器监控电路

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LTC1232 数据手册

LTC1232

Microprocessor

Supervisory Circuits

FEATURES

DESCRIPTIO

The LTC^®1232 provides power supply monitoring,

watchdog timing and external reset for microprocessor

systems. A precise internal voltage reference and

comparator circuit monitor the power supply line. When

an out-of-tolerance condition occurs, the reset outputs

are forced to active states. The RST output is guaranteed

to remain logic low even with V_CCas low as 1V.

■

Guaranteed Reset Assertion at V_CC= 1V

■

8-Pin SO Plastic Package

■

2.0mA Maximum Supply Current

■

4.62V/4.37V Precision Voltage Monitor

■

Power OK/Reset Time Delay: 600ms

■

Minimum External Component Count

■

Superior Upgrade for DS1232

TheLTC1232hasaninternalwatchdogtimerwhichforces

the reset outputs to active states when the Strobe input is

not forced low prior to a preset time-out period. The

watchdogtimingcanbesettooperateontime-outperiods

of typically 150ms, 600ms or 1.2 seconds.

APPLICATIO S

■

Critical µP Power Monitoring

■

Intelligent Instruments

■

Computers and Controllers

The LTC1232 performs push-button reset control.

The LTC1232 debounces the push-button input

and guarantees an active reset pulse width of 250ms

minimum.

■

Automotive Systems

, LTC and LT are registered trademarks of Linear Technology Corporation.

TYPICAL APPLICATIO

RST Output Voltage vs

Supply Voltage

5V DC

MPU

PB RST

(e.g. 6805)

100k

RST

5V DC

I/O LINE

RESET

LTC1232

TOL

GND

LTC1232 • TA01

SUPPLY VOLTAGE (V)

LTC1232 • TA02

sn1232 1232fas

12 3 4 5 6 7 8

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