MAX1232

PRODUCTION

Microprocessor Monitor

Improved MAX1232 Cuts Power Consumption by 10X

Data Sheet (Rev. 2) Product Selection Table

Part Models: 12
1ku List Price: Starting From $2.43

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Overview

Consumes 1/10th the Power of the DS1232
Precision Voltage Monitor—Adjustable +4.5V or +4.75V
Power-OK/Reset Pulse Width—250ms Min
No External Components
Adjustable Watchdog Timer—150ms, 600ms, or 1.2s
Debounced Manual Reset Input for External Override
Available in 8-Pin PDIP/SO and 16-Pin Wide SO Packages

The MAX1232 microprocessor (µP) supervisory circuit provides µP housekeeping and power-supply supervision functions while consuming only 1/10th the power of the DS1232. The MAX1232 enhances circuit reliability in µP systems by monitoring the power supply, monitoring the software execution, and providing a debounced manual reset input. The MAX1232 is a plug-in upgrade of the Dallas DS1232.

A reset pulse of at least 250ms duration is supplied on power-up, power-down, and low-voltage brownout conditions (5% or 10% supply tolerances can be selected digitally). Also featured is a debounced manual reset input that forces the reset outputs to their active states for a minimum of 250ms. A digitally programmable watchdog timer monitors software execution and can be programmed for timeout settings of 150ms, 600ms, or 1.2s. The MAX1232 requires no external components.

Applications

Computers
Controllers
Critical µP Power Monitoring
Intelligent Instruments

Part Models: 12
1ku List Price: Starting From $2.43

Documentation

Data Sheet 2

MAX1232: Microprocessor Monitor Data Sheet (Rev.2) 12/01/2014

MAX1232 10/10/2022

Reliability Data 1

MAX1232 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
MAX1232CPA+	Plastic Dual-In-Line, Narrow (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232CSA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232CSA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232CWE+	Small-Outline IC, Wide (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232CWE+T	Small-Outline IC, Wide (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232EPA+	Plastic Dual-In-Line, Narrow (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232ESA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232ESA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232EWE+	Small-Outline IC, Wide (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232EWE+T	Small-Outline IC, Wide (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232MJA	Ceramic Dual-In-Line, Narrow (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1232MJA/883B	Ceramic Dual-In-Line, Narrow (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 1, 2020 - 1702R ASSEMBLY
		pcn_1702r
MAX1232CSA+	PRODUCTION
MAX1232CSA+T	PRODUCTION
May 22, 2018 - 1702N ASSEMBLY
		pcn_1702n
MAX1232ESA+	PRODUCTION
MAX1232ESA+T	PRODUCTION

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 10
MAX6316	PRODUCTION	5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
MAX6317	PRODUCTION	5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
MAX6318	PRODUCTION	5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
MAX6319	PRODUCTION	5-Pin µP Supervisory Circuits with Watchdog and Manual Reset

MAX6320	PRODUCTION	5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
MAX6321	PRODUCTION	5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
MAX6322	PRODUCTION	5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
MAX6358	PRODUCTION	Dual/Triple-Voltage µP Supervisory Circuits
MAX6359	PRODUCTION	Dual/Triple-Voltage µP Supervisory Circuits
MAX6360	PRODUCTION	Dual/Triple-Voltage µP Supervisory Circuits

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