MAX823

PRODUCTION

MAX823

5-Pin Microprocessor Supervisory Circuits with Watchdog Timer and Manual Reset

Industry's-First SOT Reset ICs with Watchdog and Manual Reset

PRODUCTION

MAX823, MAX823L, MAX823M, MAX823R, MAX823S, MAX823T, MAX823Y, MAX823Z, MAX824, MAX824L, MAX824M, MAX824R, MAX824S, MAX824T, MAX824Y, MAX824Z, MAX825, MAX825L, MAX825M, MAX825R, MAX825S, MAX825T, MAX825Y, MAX825Z: Typical Operating Circuit slide

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Part Models 22

1ku List Price Starting From $2.50

Features

Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power Supplies
Operating Current:
- 6µA (MAX823L/M) (SC70)
- 2µA (MAX825T/S/R/Z/Y) (SC70)
Fully Specified Over Temperature
140ms min Power-On Reset
Guaranteed active-low RESET Valid to V_CC = 1V
Power-Supply Transient Immunity
Watchdog Timer with 1.6s Timeout (MAX823/MAX824)
Manual Reset Input (MAX823/MAX825)
No External Components

Additional Details

The MAX823/MAX824/MAX825 microprocessor (µP) supervisory circuits combine reset output, watchdog, and manual reset input functions in 5-pin SOT23 and SC70 packages. They significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX823/MAX824/MAX825 are specifically designed to ignore fast transients on V_CC.

Seven preprogrammed reset threshold voltages are available (see Reset Threshold Table in the full data sheet). All three devices have an active-low reset output, which is guaranteed to be in the correct state for V_CC down to 1V. The MAX823 also offers a watchdog input and manual reset input. The MAX824 offers a watchdog input and a complementary active-high reset. The MAX825 offers a manual reset input and a complementary active-high reset. The Selector Guide explains the functions offered in this series of parts.

Applications

Automotive Electronics
Computers and Controllers
Critical µP Monitoring
Embedded Controllers
Intelligent Instruments
Portable Battery-Powered Equipment

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

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FAQs

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Part Models 22

1ku List Price Starting From $2.50

Technical Documents 4

MAX823-MAX825Z: 5-Pin Microprocessor Supervisory Circuits with Watchdog Timer and Manual Reset Data Sheet (Rev.5) 03/14/2006

MAX823 Reliability Data 01/12/2023

Watchdogs Improve System Reliability—How to Choose the Right Part 03/26/2003

Watchdog Timer Allows Entry to Test Mode 12/19/2001

Design Resources 22

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
MAX823LEUK+	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823LEUK+T	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823LEXK+T	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823MEUK+	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823MEUK+T	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823REUK+	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823REUK+T	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823REXK+	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823REXK+T	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823SEUK+	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823SEUK+T	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823SEXK+	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823SEXK+T	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823TEUK+	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823TEUK+T	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823TEUK/GG8	Small-Outline Transistor Package	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823TEXK+	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823TEXK+T	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823YEXK+	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823YEXK+T	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823ZEXK+	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX823ZEXK+T	5-SC70-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX823LEUK+
Pin/Package Drawing
5-SOT_23-N/A
Documentation

Parts	Product Life Cycle	Description
Dual-Supply Monitors3
MAX6358	PRODUCTION	Dual/Triple-Voltage µP Supervisory Circuits
MAX6359	PRODUCTION	Dual/Triple-Voltage µP Supervisory Circuits
MAX6360	PRODUCTION	Dual/Triple-Voltage µP Supervisory Circuits
Single-Supply Monitors7
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

MAX823

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Mar 11, 2021

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