DS1231 Overview
IN MODE TOL GND RST RST NMI VCC NC Input Selects input pin characteristics Selects 5% or 10% VCC detect Ground Reset (Active High) Reset (Active Low, open drain) Non Maskable Interrupt +5V Supply No Connections DESCRIPTION The DS1231 Power Monitor Chip uses a precise temperature-pensated reference circuit which provides an orderly shutdown and an automatic restart of a processor-based system. A signal warning of an...
DS1231 Key Features
- Warns processor of an impending power failure
- Provides time for an orderly shutdown
- Prevents
- Automatically
- Suitable for linear or switching power supplies
- Adjusts to hold time of the power supply
- Supplies necessary signals for processor interface
- Accurate 5% or 10% VCC monitoring
- Replaces power-up reset circuitry
- No external capacitors required