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PCF85263A Real-Time Clock (RTC) & Calendar

NXP Semiconductors PCF85263A Real-Time Clock (RTC) and Calendar is optimized for low power consumption with automatic switching to battery on main power loss. The PCF85263A can also be configured as a stop-watch (elapsed time counter). Three-time log registers triggered from battery switch-over as well as input-driven events. The PCF85263A features a clock output and two independent interrupt signals, two alarms, an I²C interface, and quartz crystal calibration.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CRC) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	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	Packaging
	Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in SO8 package. PCF85263AT/AJ NXP Semiconductors 1: ₡713,04 161 461In 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	161 461In Stock	Cut Tape ₡713,04 ₡530,87 ₡466,86 ₡412,73 Reel ₡349,75 View ₡387,23 ₡371,61 ₡360,16 ₡341,43 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: ₡692,22 81 323In 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	81 323In Stock	Cut Tape ₡692,22 ₡497,04 ₡449,68 ₡397,64 View Reel ₡327,37 ₡372,65 ₡357,56 ₡345,59 ₡340,38 ₡327,37 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 featuring backup battery switch-over function in TSSOP8 package. PCF85263ATT/AJ NXP Semiconductors 1: ₡723,45 3 992In 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	3 992In Stock 40 000On Order On Order Ship Dates Mfr. #: PCF85263ATT/AJ Stock: 3 992 Can Ship Immediately On Order: 20 000 Expected 4/5/2027 20 000 Expected 4/12/2027 Factory Lead-Time: 27 Weeks	Cut Tape ₡723,45 ₡525,67 ₡474,14 ₡418,97 Reel ₡349,75 View ₡392,95 ₡376,82 ₡360,16 ₡341,43 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: ₡754,67 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 ₡754,67 ₡551,69 ₡497,04 ₡439,27 Reel ₡371,61 View ₡411,69 ₡395,03 ₡381,50 ₡359,12 MouseReel Available	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