MAX823 Series

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

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

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

Part	Supplier Device Package	Reset Timeout [Min]	Type	Voltage - Threshold	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Mounting Type	Number of Voltages Monitored	Output	Reset
Analog Devices Inc./Maxim Integrated MAX823ZEXK+T	SC-70-5	140 ms	Simple Reset/Power-On Reset	2.32 V	85 C	-40 ¯C	5-TSSOP SC-70-5 SOT-353	Surface Mount	1	Push-Pull Totem Pole	Active Low
Analog Devices Inc./Maxim Integrated MAX823TEUK+T	SOT-23-5	140 ms	Simple Reset/Power-On Reset	3.08 V	125 °C	-40 °C	SC-74A SOT-753	Surface Mount	1	Push-Pull Totem Pole	Active Low
Analog Devices Inc./Maxim Integrated MAX823LEUK	SOT-23-5	140 ms	Watchdog Circuit	4.63 V	125 °C	-40 °C	SC-74A SOT-753	Surface Mount	1	Push-Pull Totem Pole	Active Low
Analog Devices Inc./Maxim Integrated MAX823MEUK-T	SOT-23-5	140 ms	Simple Reset/Power-On Reset		125 °C	-40 °C	SC-74A SOT-753	Surface Mount	1	Push-Pull Totem Pole	Active Low
Analog Devices Inc./Maxim Integrated MAX823MEXK+T
Analog Devices Inc./Maxim Integrated MAX823REUK-T	SOT-23-5	140 ms	Simple Reset/Power-On Reset	2.63 V	125 °C	-40 °C	SC-74A SOT-753	Surface Mount	1	Push-Pull Totem Pole	Active Low
Analog Devices Inc./Maxim Integrated MAX823SEUK+T	SOT-23-5	140 ms	Simple Reset/Power-On Reset	2.93 V	125 °C	-40 °C	SC-74A SOT-753	Surface Mount	1	Push-Pull Totem Pole	Active Low
Analog Devices Inc./Maxim Integrated MAX823LEUK-T	SOT-23-5	140 ms	Simple Reset/Power-On Reset	4.63 V	125 °C	-40 °C	SC-74A SOT-753	Surface Mount	1	Push-Pull Totem Pole	Active Low
Analog Devices Inc./Maxim Integrated MAX823SEUK-T	SOT-23-5	140 ms	Simple Reset/Power-On Reset	2.93 V	125 °C	-40 °C	SC-74A SOT-753	Surface Mount	1	Push-Pull Totem Pole	Active Low
Analog Devices Inc./Maxim Integrated MAX823MEUK	SOT-23-5	140 ms	Simple Reset/Power-On Reset		125 °C	-40 °C	SC-74A SOT-753	Surface Mount	1	Push-Pull Totem Pole	Active Low

Catalog

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

Description

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 VCC.Seven preprogrammed reset threshold voltages are available (seeReset Threshold Tablein the full data sheet). All three devices have an active-low reset output, which is guaranteed to be in the correct state for VCCdown 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.ApplicationsAutomotive ElectronicsComputers and ControllersCritical µP MonitoringEmbedded ControllersIntelligent InstrumentsPortable Battery-Powered Equipment