PT7C4363BQ1WEX Diodes Incorporated

PT7C4363BQ Automotive Real-time Clock Features Description Table 1. Basic Functions of PT7C4363BQ Item Function PT7C4363BQ Source: Crystal: 32.768kHz 1 Oscillator Oscillator enable/disable - Oscillator fail detect 12-hour - Time display 24-hour 2 Time Century bit - Time count chain enable/disable Alarm interrupt 3 Interrupt Timer interrupt output 4 Programmable square wave output (Hz) 1, 32, 1.024k, 32.768k 2 2-wire I C bus Communicati 5 3-wire bus - on Burst mode - Write protection - 6 Control External clock test mode Power-on reset override Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See PT7C4363BQ Pin Configuration 8 1 X1 VCC 2 X2 SQW 7 3 INT SCL 6 5 4 SDA GND Pin Description Pin Pin Type Description 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 O Interrupt Output. Open drain, active low. INT 4 GND P Ground. Serial Data Input/Output. SDA is the input/output pin for the 2-wire serial interface. The 5 SDA I/O SDA pin is open-drain output and requires an external pull-up resistor. 2 6 SCL I Serial Clock Input. SCL is used to synchronize data movement on the I C serial interface. Clock Output. Open drain. Four frequencies selectable: 32.768k, 1.024k, 32, 1Hz when 7 SQW O SQWE bit is set to 1. 8 VCC P Power. PT7C4363BQ www.diodes.com March 2020 Document Number DS42042 Rev 3-2 Diodes Incorporated 2