Description
Pin No.
1 2 3 4 5 6 7 8 Pin name VAC VCC1 VCC2 TC RE PSCONT CE GND Function Has +2.0V detection voltage to detect AC power supply and stable power supply primary side, for quick power outage detection.
Features
- 1. Low current consumption 2. Capacitors (super capacitor, large capacity chemical capacitor) are used for back-up power supply, lowering system cost 3. Stable 1-chip microcomputer crystal oscillator rise time maintained with the built-in pulse shaver. 4. In addition to power outage detection for main power supply (+5V), there are built-in pins to detect AC power supply and +5V power supply primary side 5. Reset signal output by back-up power supply (super capacitor, large capacity chemical capa.
PST621 Datasheet
