DESCRIPTION

The DS1632 PC Power-Fail and Reset Controller is designed to do various functions involving battery backup and other functions typically accomplished with discrete components. The DS1632 provides a 32.768 kHz battery-backed crystal oscillator and switched VCC/VBAT power via VCCO for the real time clock function located in accompanying chip sets. In addition, the DS1632 provides for reset on both power-up and via pushbutton input, power-fail status signals for the processor, and low battery warning signals.

FEATURES

● Power-fail detector for personal computers and workstations

● Connects directly to popular personal computer chip sets

● On chip 32.768 kHz oscillator for real time clock

● Provides battery backup power to clock chip

● Pushbutton reset input

● Accurate 5 or 10 +5-volt power supply monitoring

● Complementary outputs for reset, power-fail, and low battery

● Provides for reset pulse width of either 95 ms or 190 ms

● Eliminates the need for discrete components

● Low-power CMOS circuitry

● 16-pin DIP or SOIC surface mount package

● 0°C to 70°C operation