MAX696

PRODUCTION

Microprocessor Supervisory Circuits

Industry-Standard, Full-Function uP Supervisor

Data Sheet (Rev. 5) Product Selection Table

Part Models: 7
1ku List Price: Starting From $6.38

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Overview

Adjustable Low-Line Monitor and Power-Down Reset
Power-OK/Reset Time Delay
Watchdog Timer—100ms, 1.6s, or Adjustable
Minimum Component Count
1µA Standby Current
Battery-Backup Power Switching (MAX696)
On-Board Gating of Chip-Enable Signals (MAX697)
Separate Monitor for Power-Fail or Low-Battery Warning

The MAX696/MAX697 supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery-control functions in microprocessor (µP) systems. These include µP reset and backup-battery switchover, watchdog timer, CMOS RAM write protection, and power-failure warning. The MAX696/MAX697 significantly improve system reliability and accuracy compared to that obtained with separate ICs or discrete components.

The MAX696 and MAX697 are supplied in 16-pin packages and perform six functions:

A reset output during power-up, power-down, and brownout conditions. The threshold for this "lowline" reset is adjustable by an external voltage-divider.
A reset pulse if the optional watchdog timer has not been toggled within a specified time.
Individual outputs for low-line and watchdog fault conditions.
The reset time may be left at its default value of 50ms, or may be varied with an external capacitor or clock pulses.
A separate 1.3V threshold detector for power-fail warning, low-battery detection, or to monitor a power supply other than V_CC.

The MAX696 also has battery-backup switching for CMOS RAM, CMOS microprocessor, or other low-power logic.

The MAX697 lacks battery-backup switching, but has write-protection pins (active-low CE IN and active-low CE OUT) for CMOS RAM or EPROM. In addition, it consumes less than 250 microamperes.

Applications

Computers
Controllers
Critical µP Power Monitoring
Intelligent Instruments

Part Models: 7
1ku List Price: Starting From $6.38

Documentation

Data Sheet 2

MAX696-MAX697: Microprocessor Supervisory Circuits Data Sheet (Rev.5) 08/01/2014

MAX696: Military Datasheet 09/11/2023

Reliability Data 1

MAX696 Reliability Data 01/12/2023

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX696CPE+	Plastic Dual-In-Line, Narrow (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX696CWE+	Small-Outline IC, Wide (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX696CWE+T	Small-Outline IC, Wide (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX696EPE+	Plastic Dual-In-Line, Narrow (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX696EWE+	Small-Outline IC, Wide (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX696EWE+T	Small-Outline IC, Wide (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX696MJE/883B	Ceramic Dual-In-Line, Narrow (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Supervisory Circuits & Reset ICs 6
MAX6361	PRODUCTION	SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup
MAX6362	PRODUCTION	SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup
MAX6363	PRODUCTION	SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup
MAX6364	PRODUCTION	SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup

MAX818	PRODUCTION	+5V Microprocessor Supervisory Circuits
MAX807	PRODUCTION	Full-Featured µP Supervisory Circuit with ±1.5% Reset Accuracy

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