PT7C4363BQPin Configuration 1 X1 VCC 8 2 X2 SQW 7 3 INT SCL 6 4 GND SDA 5 SOIC-8, TDFN-8 Pin DescriptionPin#PinTypeDescription 1 X1 I Oscillator Circuit Input. Together with X2, 32.768kHz crystal is connected between them. 2 X2 O Oscillator Circuit Output. Together with X1, 32.768kHz crystal is connected between them. 3 INT O Interrupt Output. Open drain, active low. 4 GND P Ground. 5 SDA I/O Serial Data Input/Output. SDA is the input/output pin for the 2-wire serial interface. The SDA pin is open-drain output and requires an external pull-up resistor. 6 SCL I Serial Clock Input. SCL is used to synchronize data movement on the I2C serial interface. 7 SQW O Clock Output. Open drain. Four frequencies selectable: 32.768k, 1.024k, 32, 1Hz when SQWE bit is set to 1. 8 VCC P Power. PT7C4363BQ www.diodes.com July 2019 Document Number DS42042 Rev 1-2 2