PT7C43390 Real-time Clock Module Features Description Applications 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 PT7C43390 Function Table Item Function PT7C43390 * 1 Oscillator Source Crystal External crystal 12-hour 2 Time Time display 24-hour Alarm interrupt pin output 2 3 Interrupt Timer interrupt output 1Hz,2Hz,4Hz 4 Programmable square wave output (Hz) 8Hz,16Hz 32kHz 2 2-wire I C bus 5 Communication Burst mode IC test mode 6 Control Power-on detector Power supply voltage detector 7 Clock calibration 80 Free register access PT7C43390 www.diodes.com August 2020 Document Number DS40502 Rev 2-2 Diodes Incorporated 2