MAX6319

Features:

·Small 5-Pin SOT23 Package
·Available in 26 Reset Threshold Voltages 2.5V to 5V, in 100mV Increments
·Four Reset Timeout Periods 1ms, 20ms, 140ms, or 1.12sec (min)
·Four Watchdog Timeout Periods 6.3ms, 102ms, 1.6sec, or 25.6sec (typ)
·Four Reset Output Stages Active-High, Push/Pull Active-Low, Push/Pull Active-Low, Open-Drain Active-Low, Bidirectional
·Guaranteed Reset Valid to V_CC = 1V
·Immune to Short Negative V_CC Transients Low Cost
·No External Components


Application

·Portable Computers
·Computers
·Controllers
·Intelligent Instruments
·Portable/Battery-Powered Equipment
·Embedded Control Systems


Pinout




Specifications

VCC...................................................................-0.3V to +6V
RESET (MAX6320/MAX6321/MAX6322 only)...... -0.3V to +6V
All Other Pins........................................-0.3V to (VCC + 0.3V)
Input/Output Current, All Pins ......................................20mA
SOT23-5 (derate 7.1mW/°C above +70°C)..............571mW
Operating Temperature Range....................-40°C to +85°C
Junction Temperature ...............................................+150°C
Storage Temperature Range......................-65°C to +160°C
Lead Temperature (soldering, 10sec)........................+300°C


Description

The MAX6319 family of microprocessor (µP) supervisory circuits monitors power supplies and microprocessor activity in digital systems. The MAX6319 offers several combinations of push/pull, open-drain, and bidirectional (such as Motorola 68HC11) reset outputs, along with watchdog and manual-reset features. The Selector Guide below lists the specific functions available from each device. These devices are specifically designed to ignore fast negative transients on VCC. Resets are guaranteed valid for VCC down to 1V.
The MAX6319 is available in 26 factory-trimmed reset threshold voltages (from 2.5V to 5V, in 100mV increments),featuring four minimum power-on reset timeout periods (from 1ms to 1.12sec), and four watchdog timeout periods (from 6.3ms to 25.6sec). Nine standard versions are available with an order increment requirement of 2500 pieces (see Standard Versions table); contact the factory for availability of other versions, which have an order increment requirement of 10,000 pieces.
The MAX6319 is offered in a miniature 5-pin SOT23 package.