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19-1568; Rev 2; 12/05
6-Pin µP Reset Circuit with Power-Fail Comparator
General Description
The MAX6342–MAX6345 family of microprocessor (µP) supervisory circuits monitors power supplies in digital sys tems. These devices significantly improve system reliabili ty and accuracy compared to separate ICs or discrete components. The MAX6342–MAX6345 provide factory-trimmed V CC reset threshold voltages from 2.33V to 4.63V and operate with supply voltages between +1V and +5.5V. A +1.25V threshold detector allows for a power-fail warning, for low-battery detection, or for monitoring another power supply. The MAX6342 contains an MR input and an active-low push-pull reset.