MicroMonitor Chip

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. When VCC returns to an in-tolerance condition, the reset signals are kept in the active state for a minimum of 250ms to allow the power supply and processor to stabilize.

* 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