MAX823

PRODUCTION

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

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

Data Sheet (Rev. 5) Product Selection Table

Part Models: 22
1ku List Price: Starting From $2.50

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Overview

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

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

Part Models: 22
1ku List Price: Starting From $2.50

Documentation

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

Part Models	Product Lifecycle	PCN

Feb 4, 2015 - 1341_CANCELLATION ASSEMBLY
		pcn_1341_cancellation
MAX823LEUK+	PRODUCTION
MAX823LEUK+T	PRODUCTION
MAX823MEUK+	PRODUCTION
MAX823MEUK+T	PRODUCTION
MAX823REUK+	PRODUCTION
MAX823REUK+T	PRODUCTION
MAX823SEUK+	PRODUCTION
MAX823SEUK+T	PRODUCTION
MAX823TEUK+	PRODUCTION
MAX823TEUK+T	PRODUCTION
Mar 11, 2021 - 1703RA ASSEMBLY
		pcn_1703ra
MAX823REUK+	PRODUCTION
MAX823REUK+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

Tools & Simulations

IBIS Model 1

MAX823T IBIS Model

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Overview

Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 2