SM8578BV - Nippon Precision Circuits Inc

SM8578BV Real-time Clock IC

Number 1 2 3 4 5 6 Name INTN XTN XT VSS CE CLK I/O O O I – I I Function Timer interrupt/alarm interrupt output, determined by internal mode setting, or frequency output, with frequency value given in the frequency set register (N-channel open-drain output) Oscillator output. Oscillator capacitor CD built-in. Oscillator input Negative supply voltage connectio.

Features

I I PINOUT (Top view) I I I I I I I I I 1.6 to 5.5V wide operating voltage range 0.5µA (typ.) current consumption (VDD = 3.0V, CE = Low) 3-wire serial interface control Day, day-of-week, hour, and minute alarm interrupt function 1/4096 seconds to 255 minutes presettable interval timer interrupt function Time update detection function Abnormal oscillation detection function Automatic leap-year adjustment function (Western and Japanese calendars) Oscillator capacitor CD built-in Molybdenum-gate CMOS process Miniature 8-pin VSOP package INTN XTN XT VSS 1 8 VDD DATA CLK 4 5 CE ORDERI.