General Description
The MAX823/MAX824/MAX825* microprocessor (µP) supervisory circuits combine reset output, watchdog, and manual-reset input functions in a 5-pin SOT23-5 package. 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.

FEATUREs
♦ Precision Monitoring of +3V, +3.3V, and +5V Power Supplies
♦ Operating Current: 10µA (MAX823L/M) 3µA (MAX825T/S/R)
♦ Fully Specified Over Temperature
♦ 140ms Min Power-On Reset
♦ Guaranteed RESET Valid to VCC = 1V
♦ Power-Supply Transient Immunity
♦ Watchdog Timer with 1.6sec Timeout (MAX823/MAX824)
♦ Manual-Reset Input (MAX823/MAX825)
♦ No External Components

APPLICATIONs
    Battery-Powered Computers and Controllers
    Embedded Controllers
    Intelligent Instruments
    Automotive Systems
    Critical µP Monitoring
    Portable/Battery-Powered Equipment