MAX6746–MAX6753
μP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay
General Description
The MAX67...
MAX6746–MAX6753
μP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay
General Description
The MAX6746–MAX6753 low-power microprocessor (μP) supervisory circuits monitor single/dual system supply
voltages from 1.575V to 5V and provide maximum adjustability for reset and watchdog functions. These devices assert a reset signal whenever the VCC supply
voltage or RESET IN falls below its reset threshold or when manual reset is pulled low. The reset output remains asserted for the reset timeout period after VCC and RESET IN rise above the reset threshold. The reset function features immunity to power-supply transients.
The MAX6746–MAX6753 have ±2% factory-trimmed reset threshold
voltages in approximately 100mV increments from 1.575V to 5.0V and/or adjustable reset threshold
voltages using external resistors.
The reset and watchdog delays are adjustable with external
capacitors. The MAX6746–MAX6751 contain a watchdog select input that extends the watchdog timeo...