IN1232(2011) 데이터 시트보기 (PDF) - IK Semicon Co., Ltd

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IN1232
(Rev.:2011)

POWER SUPPLY CONTROL WITH BUILT-IN WATCHDOG TIMER

IK Semicon Co., Ltd 

TECHNICAL DATA

POWER SUPPLY CONTROL

WITH BUILT-IN WATCHDOG TIMER

IN1232

IN1232 is designed to monitor power supply within the system of

reset signal generation for

microprocessors. It is used in monitor systems for controlling var-

ious processes and entities.

Packaged in 8-pin SOP or DIP.

Features:

• Rated supply voltage 5.0 V

• Accurate 5% or 10% microprocessor power supply monitoring

• Programming of watchdog timer overflow time

• Generation of reset signals at power on for correct microproces

sor start.

ORDERING INFORMATION

IL1232N Plastic

IL1232D SOIC

TA = -40° to 85° C for all packages.

The chip contains reference voltage source, analog comparator,

Watchdog timer, circuit for monitoring power supply deviation accuracy.

.

Functions:

PBRST 01

TD 02

• Reset signal generation after power failure/ error

• Reset signal generation from external “RESET” pushbutton

• Reset signal generation from watchdog timer

TOL 03

GND 04

08 Vcc

07 ST

06 RST

05 RST

Fig 1 – PIN ASSIGNMENT

Table 1 – Absolute maximum ratings

Symbol

Parameter

Typical

Min

Max

Units

VСС

Supply voltage

VIH

Input voltage, high level

VIL

Input voltage, low level

ТA

Operating temperature range

-

7.0

V

-

7.0

V

-1.0

-

V

-40

+85

°С

Tstg

Storage temperature

-60

+125

°С

* Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device.

These are stress ratings only and functional operation of the device at these or any other conditions beyond those indi-

cated under “recommended operating conditions” is not implied.

Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

2011, February, Rev. 01

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