Part	Current - Timekeeping (Max)	Features	Operating Temperature (Min)	Operating Temperature (Max)	Package Name	Type	Date Format	Interface	Voltage - Supply, Battery (Maximum)	Voltage - Supply, Battery (Minimum)	Time Format	Package Length	Package Width	Mounting Type	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)
NXP USA Inc. PCF8523U/12AA/1,00
NXP USA Inc. PCF8523T/1,118	0.5 µA	Alarm Leap Year Watchdog Timer	-40 °C	85 °C	8-SO 8-SOIC	Clock/Calendar	YY-MM-DD-dd	2-Wire Serial I2C	5.5 V	1.8 V	HH:MM:SS (12/24 hr)	0.154 in	3.9 mm	Surface Mount	5.5 V	1.6 V

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