Datasheet > CAT872-40ULGT3

CAT872-40ULGT3

更新时间： 2024-11-30 00:51:19

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
9页	225K
描述
Dual Input Reset Generator

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数据手册

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CAT872-40ULGT3 数据手册

CAT871, CAT872

Dual Input Reset Generator

Description

CAT871, CAT872 are dual input reset generators designed to restart

microprocessor and microcontroller based systems when the

watchdog timer or other resetting mechanisms have become disabled

or failed.

http://onsemi.com

CAT871, CAT872 monitor two inputs and output an active low reset

pulse after both inputs have been active (logic low) for a factory preset

minimum time. The reset pulse width is 2.2 ms for CAT871 and 70 ms

for CAT872. Releasing either input from its active state before the

minimum timeout period resets the internal timer and both inputs must

return to being active before the timer will restart with a fresh count

down.

CAT871, CAT872’s open drain output is capable of sinking up to

3 mA of current and may be wire−OR’d with other open drain devices

to drive a common reset input.

ULLGA−6

UL SUFFIX

CASE 613AF

MARKING DIAGRAM

Features

• Operate on 1.65 V to 5.5 V Power Supplies

• Ultra Low Quiescent Current: 10 nA (typical)

• Schmitt Trigger Inputs

• 8 Factory Preset Delay Times from 0.5 s to 5 s to Choose From

• Small mLLGA−6 Package: 1.45 x 1.0 x 0.4 mm

• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant

X = Specific Device Code

X = (J = CAT871, K = CAT872)

M = Date Code

PIN CONNECTIONS

Typical Applications

MR1

MR2

NIC

VDD

• Mobile Phones

• PDAs

RESET

GND

• MP3 Players

• Personal Navigation Devices

(Top View)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

Figure 1. Application Schematic

Publication Order Number:

November, 2011 − Rev. 0

CAT871/D

12 3 4 5 6 7...9

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