MAX6319LHUK44B-T中文资料

19-0496; Rev 7; 11/07

5-Pin µP Supervisory Circuits with

Watchdog and Manual Reset

________________General Description

____________________________Features

The MAX6316–MAX6322 family of microprocessor (µP) Small 5-Pin SOT23 Package

supervisory circuits monitors power supplies andmicroprocessor activity in digital systems. It offers sev- Available in 26 Reset Threshold Voltages

2.5V to 5V, in 100mV Incrementseral combinations of push/pull, open-drain, and bidirec-tional (such as Motorola 68HC11) reset outputs, along Four Reset Timeout Periods

with watchdog and manual reset features. The Selector1ms, 20ms, 140ms, or 1.12s (min)Guidebelow lists the specific functions available from Four Watchdog Timeout Periods

each device. These devices are specifically designed6.3ms, 102ms, 1.6s, or 25.6s (typ) to ignore fast negative transients on VCC. Resets are Four Reset Output Stages

guaranteed valid for VCCdown to 1V.

Active-High, Push/PullActive-Low, Push/PullThese devices are available in 26 factory-trimmed resetActive-Low, Open-Drain threshold voltages (from 2.5V to 5V, in 100mV incre-Active-Low, Bidirectional

ments), featuring four minimum power-on reset timeout Guaranteed Reset Valid to VCC= 1V

periods (from 1ms to 1.12s), and four watchdog timeoutperiods (from 6.3ms to 25.6s). Thirteen standard ver- Immune to Short Negative VCCTransientssions are available with an order increment requirement Low Cost

of 2500 pieces (see Standard Versionstable); contact No External Components

the factory for availability of other versions, which have_______________Ordering Information

an order increment requirement of 10,000 pieces.

The MAX6316–MAX6322 are offered in a miniature 5-pin SOT23 package.

________________________Applications

Portable ComputersComputersControllers

Intelligent Instruments

Specify lead-free by replacing “-T” with “+T” when ordering.Portable/Battery-Powered EquipmentOrdering Information continued at end of data sheet.

Embedded Control Systems

Typical Operating Circuit and Pin Configurations appear atend of data sheet.

___________________________________________________________________Selector Guide

*The MAX6318/MAX6319/MAX6321/MAX6322 feature two types of reset output on each device.

________________________________________________________________Maxim Integrated Products1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,or visit Maxim’s website at .

MAX6316–MAX6322