| Pin No. | Pin name | Function |
| 1 | VAC | Has +2.OV detection voltage to detect AC power supply and stable power supply primary side, for quick power outage detection. |
| 2 | Vcci | +5V main power supply |
| 3 | Vcc2 | Back-up power supply (back-up capacitor connected) |
| 4 | TC | Pulse width setting pin for pulse shaver (capacitor and resistor connected) |
| 5 | RE | Reset output |
| 6 | PSCONT | Pulse shaver ON/OFF switching High : OFF Low: ON |
| 7 | CE | Chip enable signal output |
| 8 | GND | GND |
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