The IMP1832 microprocessor supervisor can halt and restart a “hung-up” or “stalled” microprocessor, restart a microprocessor after a power failure, and debounce a manual push-button microprocessor reset switch. The IMP1832 features over 40% lower supply current than the pin compatible Dallas Semiconductor DS1832.

Key Features

◆ Pin compatible with the Dallas Semiconductor

DS1832

— Over 40% lower supply current

◆ 3.3V supply monitor

◆ Push-pull output

◆ Selectable watchdog period

◆ Debounce manual push-button reset input

◆ Precision temperature-compensated voltage

reference and comparator

◆ Power-up, power-down and brownout detection

◆ 250ms minimum reset time

◆ Active LOW and HIGH reset signal

◆ Selectable trip point tolerance: 10% or 20%

◆ Low-cost 8-pin DIP/SO and 8-pin MicroSO

packages

◆ Wide operating temperature –40°C to +85°C