PT7C4372A

Features                 PT7C4372A/4372C Real-time Clock Module (I2C Bus) Description    Table 1. Diverse functions of RTC circuits Item Function 1 Clock 2 Clock adjustment 3 Period interrupt 4 Alarm 5 Oscillation detect 6 32-kHz clock output 7 I2C bus interface with CPU 8 Crystal PT7C4372A/4372C   Unit 3.051ppm for 32.768kHz crystal; 3.125ppm for 32.000kHz crystal  Output from /INTA and /INTB  /INTA: Alarm_A; /INTB: Alarm_B   via /INTB enabled by register   External, 32.768kHz or 32.000kHz selectable 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 https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. PT7C4372A/PT7C4372C Document Number DS42964 Rev 1-2 www.diodes.com 1 July 2020 © Diodes Incorporated Pin Configuration PT7C4372A/C 1 INTB Vcc 8 2 SCL OSCIN 7 3 SDA OSCOUT 6 4 GND INTA 5 TSSOP SOIC PT7C4372A/4372C Pin Description Pin# Pin Name 1 /INTB 2 SCL 3 SDA 4 GND 5 /INTA 6 OSCOUT 7 OSCIN 8 Vcc Type O I I/O P O O I P Description Interrupt B (Open Drain). It outputs alarm interrupts and periodic interrupts. Serial Clock Line. It is for I2...