DESCRIPTION

The DS1232LP/LPS Low Power MicroMonitor Chip monitors three vital conditions for a

microprocessor: power supply, software execution, and external over-ride. First, a precision temperaturecompensated

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

250 ms to allow the power supply and processor to stabilize.

FEATURES

Super-low power version of DS1232

50 μA quiescent current

Halts and restarts an out-of-control

microprocessor

Automatically restarts microprocessor after

power failure

Monitors pushbutton for external override

Accurate 5% or 10% microprocessor power

supply monitoring

8-pin DIP, 8-pin SOIC or space saving μ-SOP

package available

Optional 16-pin SOIC package available

Industrial temperature -40°C to +85°C

available, designated N