DESCRIPTION
The DS1832 3.3-Volt MicroMonitor monitors three vital conditions for a microprocessor: power supply, software execution, and external override. First, a precision temperature-compensated reference and comparator circuit monitor the status of VCC. When an out-of-tolerance condition occurs, an internal power-fail signal is generated which forces the resets to an 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
■ 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 10% or 20% microprocessor power monitoring
■ Eliminates need for discrete components
■ 20% tolerance for use with 3.0-volt systems
■ Pin-compatible with the DS1232
■ Low cost 8-pin DIP, 8-pin SOIC, and space
   saving µ-SOP packages available
■ Industrial temperature range of -40°C to +85°C