19-1933 Rev 1; 2/01
3-Pin, Low-Power µP Reset Circuits
General Description
The MAX6800/MAX6801/MAX6802 microprocessor (µP) supervisory circuits monitor the power supplies in 2.
85V to 5.
0V µP and digital systems.
They increase circuit reliability and reduce cost by eliminating external components and adjustments.
These devices perform a single function—they assert a reset signal whenever the VCC supply
voltage declines below a preset threshold, keeping it asserted for a preset timeout period after V CC has risen above the reset threshold.
The only difference among the three devices is their output.
The MAX6801 (push/pull) and MAX6802 (open-drain) have an active-low RESET output, while the MA...