REAL TIME CLOCK CALENDAR 128 BYTES USER RAM SDA I2 C INTERFACE 8 BYTES ROM OFIE RTC w/ALARM & CALIBRATION SCL (4) Crystal XI VOUT WDS SQUARE WAVE XO 2 TPXIN WATCHDOG 32KHz OSCILLATOR AFE TIEX CLRX (3) TAMPER WDI VCC IRQ/OUT CLRXEXT (1) SQW/FT (2) TPCLR(3) VOUT VBAT F32k(1) VSS VBL COMPARE VSO COMPARE VPFD COMPARE BL POR RST RSTIN1 (1) (3) RSTIN2 (3) (3) ECON EX PFI1 COMPARE PFO1(2) COMPARE PFO2(2) 1.25V (Internal) PFI2 1.25V (Internal) AI07026