Integrated Circuits (ICs)

PCF2123U/12AA/1,00

Obsolete

IC RTC/CALENDAR SPI UNCASED

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Integrated Circuits (ICs)

Obsolete

IC RTC/CALENDAR SPI UNCASED

PCF21 Series

Part	Voltage - Supply (Minimum)	Voltage - Supply (Maximum)	Operating Temperature (Min)	Operating Temperature (Max)	Type	Interface	Current - Timekeeping (Max)	Voltage - Supply, Battery (Maximum)	Voltage - Supply, Battery (Minimum)	Date Format	Features	Time Format	Package Name	Package Length	Package Width	Mounting Type	Memory Size
NXP USA Inc. PCF2123U/5GA/1,015
NXP USA Inc. PCF2123U/12AA/1,00
NXP USA Inc. PCF2129AT/1,518	1.8 V	4.2 V	-40 °C	85 °C	Clock/Calendar	2-Wire Serial I2C	1.5 µA	4.2 V	1.8 V	YY-MM-DD-dd	Alarm Leap Year Square Wave Output TCXO/Crystal Watchdog Timer	HH:MM:SS (12/24 hr)	20-SO 20-SOIC	0.295 in	7.5 mm	Surface Mount
NXP USA Inc. PCF2127AT/1,518	1.8 V	4.2 V	-40 °C	85 °C	Clock/Calendar	2-Wire Serial I2C	1.5 µA	4.2 V	1.8 V	YY-MM-DD-dd	Alarm Leap Year Square Wave Output SRAM TCXO/Crystal Watchdog Timer	HH:MM:SS (12/24 hr)	20-SO 20-SOIC	0.295 in	7.5 mm	Surface Mount	512 B

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Distributor	Package	Quantity	$	Updated

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General part information

Real Time Clock (RTC) IC

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