Processor Supervisor 4.63V 2.5V/3V/3.3V/5V 5-Pin SOT-23

The MAX823 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 is a specifically designed to ignore fast transients on VCC. Seven preprogrammed reset threshold voltages are available. All three devices have an active-low reset output, which is guaranteed to be in the correct state for VCC down to 1V. The MAX823 also offers a watchdog input and manual reset input. The MAX823 offers a watchdog input and a complementary active-high reset. The MAX823 offers a manual reset input and a complementary active-high reset. The Selector Guide explains the functions offered in this series of parts.

• Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power Supplies
• Fully Specified Over Temperature
• 140ms min Power-On Reset
• Guaranteed RESET Valid to VCC = 1V
• Power-Supply Transient Immunity
• Watchdog Timer with 1.6s Timeout (MAX824)
• Manual Reset Input (MAX825)
• No External Components