PCF8563T/F4118,NXP SEMICONDUCTORS SCT
PCF8563T/F4 118 BY NXP SEMICONDUCTORS IS A REAL-TIME CLOCK (RTC) IC WITH I2C INTERFACE 64-BYTE RAM PROGRAMMABLE SQUARE WAVE OUTPUT LOW POWER CONSUMPTION OPERATING FROM 1.0V TO 5.5V AND SUITABLE FOR EMBEDDED TIMEKEEPING APPLICATIONS.