DESCRIPTION

The DS1232 MicroMonitor Chip monitors three vital conditions for a microprocessor: power supply, software execution, and external override. First, a precision temperature-compensated reference and comparator circuit monitors the status of VCC. When an out-of-tolerance condition occurs, an internal power fail signal is generated which forces reset to the active state.

FEATURES

■ Halts and restarts an out-of-control

microprocessor

■ Holds microprocessor in check during power

transients

■ Automatically restarts microprocessor after

power failure

■ Monitors pushbutton for external override

■ Accurate 5 or 10 microprocessor power

supply monitoring

■ Eliminates the need for discrete components

■ Space-saving, 8-pin mini-DIP

■ Optional 16-pin SOIC surface mount package

■ Industrial temperature -40°C to +85°C

available, designated N