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NXP Real Time Clock

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RTC Bus Interface	Date Format	Time Format	Package / Case	Battery Backup Switching	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Mounting Style	Qualification	Packaging
Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in HXSON10 package. PCF85363ATL/AX NXP Semiconductors 1: $1.33 81,394In Stock	Mfr. Part # PCF85363ATL/AX Mouser Part # 771-PCF85363ATL/AX	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in HXSON10 package.	Datasheet	81,394In Stock	Cut Tape $1.33 $1.05 $0.972 $0.893 View Reel $0.755 $0.856 $0.833 $0.823 $0.802 $0.755 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	DFN2626-10	Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85363A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring 128 byte SRAM in HVSON12 package. PCF85053ATKJ NXP Semiconductors 1: $1.82 12,000In Stock 12,000Expected 12/28/2026	Mfr. Part # PCF85053ATKJ Mouser Part # 771-PCF85053ATKJ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring 128 byte SRAM in HVSON12 package. Learn More about NXP Semiconductors nxp pcf85053a rtc	Datasheet	12,000In Stock 12,000Expected 12/28/2026	Cut Tape $1.82 $1.33 $1.21 $1.08 View Reel $0.889 $1.02 $0.974 $0.969 $0.909 $0.889 MouseReel Available	Min.: 1 Mult.: 1 : 6,000										PCF85053A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in SO8 package. PCF85063AT/AY NXP Semiconductors 1: $0.90 45,867In Stock	Mfr. Part # PCF85063AT/AY Mouser Part # 771-PCF85063AT/AY	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface in SO8 package. Learn More about NXP Semiconductors nxp pcf85063 clocks	Datasheet	45,867In Stock	Cut Tape $0.90 $0.643 $0.579 $0.509 Reel $0.416 View $0.474 $0.453 $0.435 $0.405 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85063A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in HXSON10 package. PCF85063ATL/1,118 NXP Semiconductors 1: $0.85 54,052In Stock	Mfr. Part # PCF85063ATL/1,118 Mouser Part # 771-PCF85063ATL1118	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface in HXSON10 package. Learn More about NXP Semiconductors nxp pcf85063 clocks	Datasheet	54,052In Stock	Cut Tape $0.85 $0.608 $0.548 $0.48 View Reel $0.381 $0.446 $0.426 $0.41 $0.402 $0.381 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	DFN2626-10	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85063A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in SO8 package. PCF85263AT/AJ NXP Semiconductors 1: $1.51 158,118In Stock	Mfr. Part # PCF85263AT/AJ Mouser Part # 771-PCF85263AT/AJ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in SO8 package. Learn More about NXP Semiconductors nxp pcf85263a rtc	Datasheet	158,118In Stock	Cut Tape $1.51 $1.10 $0.986 $0.875 Reel $0.738 View $0.822 $0.79 $0.78 $0.722 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-8	Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85263A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in HXSON10 package. PCF85263ATL/AX NXP Semiconductors 1: $1.33 80,547In Stock	Mfr. Part # PCF85263ATL/AX Mouser Part # 771-PCF85263ATL/AX	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in HXSON10 package. Learn More about NXP Semiconductors nxp pcf85263a rtc	Datasheet	80,547In Stock	Cut Tape $1.33 $0.955 $0.864 $0.764 View Reel $0.629 $0.716 $0.687 $0.664 $0.654 $0.629 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	DFN2626-10	Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85263A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in SO8 package. PCF8563T/5,518 NXP Semiconductors 1: $1.28 45,495In Stock	Mfr. Part # PCF8563T/5,518 Mouser Part # 771-PCF8563T/5518	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface in SO8 package.	Datasheet	45,495In Stock	Cut Tape $1.28 $0.951 $0.869 $0.778 Reel $0.658 View $0.735 $0.709 $0.684 $0.644 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	PCF8563	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package. PCF85063ATT/AJ NXP Semiconductors 1: $0.95 4,834In Stock 27,500On Order	Mfr. Part # PCF85063ATT/AJ Mouser Part # 771-PCF85063ATT/AJ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package. Learn More about NXP Semiconductors nxp pcf85063 clocks	Datasheet	4,834In Stock 27,500On Order On Order Ship Dates Mfr. #: PCF85063ATT/AJ Stock: 4,834 Can Ship Immediately On Order: 15,000 Expected 3/29/2027 12,500 Expected 9/27/2027 Factory Lead-Time: 27 Weeks	Cut Tape $0.95 $0.646 $0.581 $0.541 Reel $0.455 View $0.504 $0.482 $0.474 $0.444 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85063A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz SPI Interface in HXSON10 package. PCF85063BTL/1,118 NXP Semiconductors 1: $0.80 5,377In Stock 8,000Expected 10/12/2026	Mfr. Part # PCF85063BTL/1,118 Mouser Part # 771-PCF85063BTL1118	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz SPI Interface in HXSON10 package. Learn More about NXP Semiconductors nxp pcf85063 clocks	Datasheet	5,377In Stock 8,000Expected 10/12/2026	Cut Tape $0.80 $0.579 $0.525 $0.479 View Reel $0.381 $0.446 $0.426 $0.414 $0.404 $0.381 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	DFN2626-10	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85063B	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP8 package. PCF85263ATT/AJ NXP Semiconductors 1: $1.45 2,817In Stock 40,000On Order	Mfr. Part # PCF85263ATT/AJ Mouser Part # 771-PCF85263ATT/AJ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP8 package. Learn More about NXP Semiconductors nxp pcf85263a rtc	Datasheet	2,817In Stock 40,000On Order On Order Ship Dates Mfr. #: PCF85263ATT/AJ Stock: 2,817 Can Ship Immediately On Order: 20,000 Expected 4/5/2027 20,000 Expected 4/12/2027 Factory Lead-Time: 27 Weeks	Cut Tape $1.45 $1.06 $0.956 $0.848 View Reel $0.701 $0.796 $0.765 $0.749 $0.701 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85263A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP10 package. PCF85263ATT1/AZ NXP Semiconductors 1: $1.45 A tariff of 38% may be applied if shipping to the United States. 5,642In Stock 7,500Expected 11/30/2026	Mfr. Part # PCF85263ATT1/AZ Mouser Part # 771-PCF85263ATT1/AZ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP10 package. Learn More about NXP Semiconductors nxp pcf85263a rtc	Datasheet	5,642In Stock 7,500Expected 11/30/2026	Cut Tape $1.45 $1.06 $0.955 $0.844 Reel $0.714 View $0.791 $0.759 $0.733 $0.69 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-10	Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85263A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock Automotive RTC IC with 400 kHz I2C interface in TSSOP8 package. PCA85073ADP/Q900Z NXP Semiconductors 1: $1.65 179In Stock 32,500On Order	Mfr. Part # PCA85073ADP/Q900Z Mouser Part # 771-PCA85073ADPQ900Z	NXP Semiconductors	Real Time Clock Automotive RTC IC with 400 kHz I2C interface in TSSOP8 package. Learn More about NXP Semiconductors nxp pca85073a cmos rtc	Datasheet	179In Stock 32,500On Order On Order Ship Dates Mfr. #: PCA85073ADP/Q900Z Stock: 179 Can Ship Immediately On Order: 17,500 Expected 2/9/2027 15,000 Expected 3/15/2027 Factory Lead-Time: 27 Weeks	Cut Tape $1.65 $1.20 $1.09 $0.96 Reel $0.801 View $0.902 $0.866 $0.856 $0.791 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TSSOP-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 105 C	PCA85073A	SMD/SMT	AEC-Q100	Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in HWSON8 package. PCF85063TP/1Z NXP Semiconductors 1: $1.01 5In Stock 76,000Expected 4/12/2027	Mfr. Part # PCF85063TP/1Z Mouser Part # 771-PCF85063TP/1Z	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface in HWSON8 package.	Datasheet	5In Stock 76,000Expected 4/12/2027	Cut Tape $1.01 $0.704 $0.633 $0.555 View Reel $0.445 $0.517 $0.495 $0.476 $0.465 $0.445 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	HWSON-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85063TP	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in TSSOP8 package. PCF85363ATT/AJ NXP Semiconductors 1: $1.70 233In Stock 12,500On Order	Mfr. Part # PCF85363ATT/AJ Mouser Part # 771-PCF85363ATT/AJ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in TSSOP8 package. Learn More about NXP Semiconductors nxp pcf85063 clocks	Datasheet	233In Stock 12,500On Order On Order Ship Dates Mfr. #: PCF85363ATT/AJ Stock: 233 Can Ship Immediately On Order: 7,500 Expected 10/14/2026 5,000 Expected 4/26/2027 Factory Lead-Time: 27 Weeks	Cut Tape $1.70 $1.24 $1.13 $0.995 View Reel $0.812 $0.935 $0.898 $0.887 $0.812 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85363A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package. PCF8563TS/5,118 NXP Semiconductors 1: $1.89 964In Stock 15,000On Order	Mfr. Part # PCF8563TS/5,118 Mouser Part # 771-PCF8563TS/5118	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package.	Datasheet	964In Stock 15,000On Order On Order Ship Dates Mfr. #: PCF8563TS/5,118 Stock: 964 Can Ship Immediately On Order: 7,500 Expected 10/15/2026 7,500 Expected 11/16/2026 Factory Lead-Time: 27 Weeks	Cut Tape $1.89 $1.39 $1.26 $1.12 View Reel $0.876 $1.06 $1.04 $0.876 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TSSOP-8	No Backup Switching	1 V	5.5 V	- 40 C	+ 85 C	PCF8563	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock Automotive tiny Real-Time Clock/calendar with alarm function and I2C-bus PCA85063ATT/AJ NXP Semiconductors 1: $1.69 13In Stock 12,500On Order NRND	Mfr. Part # PCA85063ATT/AJ Mouser Part # 771-PCA85063ATT/AJ NRND	NXP Semiconductors	Real Time Clock Automotive tiny Real-Time Clock/calendar with alarm function and I2C-bus	Datasheet	13In Stock 12,500On Order On Order Ship Dates Mfr. #: PCA85063ATT/AJ Stock: 13 Can Ship Immediately On Order: 5,000 Expected 12/28/2026 7,500 Expected 2/8/2027 Factory Lead-Time: 27 Weeks	Cut Tape $1.69 $1.24 $1.12 $0.99 View Reel $0.792 $0.93 $0.893 $0.883 $0.792 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 105 C	PCA85063A	SMD/SMT	AEC-Q100	Reel, Cut Tape, MouseReel
Real Time Clock Automotive RTC module, featuring I2C or SPI interface in HLSON16 package. PCA2131TF/Q900Y NXP Semiconductors 1: $4.36 7,750Expected 10/13/2026	Mfr. Part # PCA2131TF/Q900Y Mouser Part # 771-PCA2131TF/Q900Y	NXP Semiconductors	Real Time Clock Automotive RTC module, featuring I2C or SPI interface in HLSON16 package. Learn More about NXP Semiconductors nxp pca2131 rtc	Datasheet	7,750Expected 10/13/2026	Cut Tape $4.36 $3.33 $3.07 $2.81 View Reel $2.38 $2.68 $2.64 $2.44 $2.41 $2.38	Min.: 1 Mult.: 1 : 4,000										PCA2131		AEC-Q100	Reel, Cut Tape
Real Time Clock RTC Module with I2C or SPI interface featuring backup battery switch-over function in HLSON16 package. PCF2131TFY NXP Semiconductors 1: $3.66 66,329On Order	Mfr. Part # PCF2131TFY Mouser Part # 771-PCF2131TFY	NXP Semiconductors	Real Time Clock RTC Module with I2C or SPI interface featuring backup battery switch-over function in HLSON16 package. Learn More about NXP Semiconductors nxp pcf2131 rtc	Datasheet	66,329On Order On Order Ship Dates Mfr. #: PCF2131TFY Stock: 0 On Order: 34,329 Expected 11/9/2026 32,000 Expected 10/4/2027 Factory Lead-Time: 16 Weeks	Cut Tape $3.66 $2.76 $2.53 $2.28 View Reel $1.88 $2.15 $2.10 $2.04 $2.01 $1.88 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Serial, I2C, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C	PCF2131	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock PCF85163T/1 PCF85163T/1,518 NXP Semiconductors 2,500: $0.509 A tariff of 38% may be applied if shipping to the United States. Non-Stocked Lead-Time 16 Weeks	Mfr. Part # PCF85163T/1,518 Mouser Part # 771-PCF85163T1518	NXP Semiconductors	Real Time Clock PCF85163T/1		Non-Stocked Lead-Time 16 Weeks	Reel $0.509 $0.496 A tariff of 38% may be applied if shipping to the United States.	Min.: 2,500 Mult.: 2,500 : 2,500	I2C		HH:MM:SS (24 hr)	SOT-96		1 V	5.5 V				SMD/SMT		Reel
Real Time Clock ULTRA LO PWR CLK/CAL RTC IC PCF8563T/F4,118 NXP Semiconductors Restricted Availability	Mfr. Part # PCF8563T/F4,118 Mouser Part # 771-PCF8563TD-T	NXP Semiconductors	Real Time Clock ULTRA LO PWR CLK/CAL RTC IC Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	PCF8563	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock 4 x 40 I C-bus LCD Segment Driver in TSSOP56 Package NXP Semiconductors PCF8553DTT/AY PCF8553DTT/AY NXP Semiconductors 1: $2.47 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # PCF8553DTT/AY Mouser Part # 771-PCF8553DTT/AY	NXP Semiconductors	Real Time Clock 4 x 40 I C-bus LCD Segment Driver in TSSOP56 Package Learn More about NXP Semiconductors nxplogic	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape $2.47 $1.82 $1.66 $1.48 Reel $1.27 View $1.40 $1.36 $1.31 $1.24	Min.: 1 Mult.: 1 : 2,000										PCF8553DTT			Reel, Cut Tape

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