Real Time Clock – Mouser United Kingdom

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Real Time Clocks for Instrument Clusters

Real Time Clocks (RTCs) are IC devices that keep track of time. A typical RTC can provide the time of day as well as the date via a serial bus such as I2C or SPI. Although similar in many ways, RTCs should not be confused with clock generators, which are used to synchronize various parts of a circuit.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Interface Type	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 Serial SPI bus RTC M41T93ZQA6F STMicroelectronics 1: £5.82 1,019In Stock	Mfr. Part No. M41T93ZQA6F Mouser Part No 511-M41T93ZQA6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	1,019In Stock	Cut Tape £5.82 £4.60 £4.16 £3.79 View Reel £3.30 £3.58 £3.57 £3.30 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 MCP79411-I/SN Microchip Technology 1: £0.849 11,841In Stock	Mfr. Part No. MCP79411-I/SN Mouser Part No 579-MCP79411ISN	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	11,841In Stock	£0.849 £0.788 £0.78	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Tube
Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP ISL12057IBZ Renesas / Intersil 1: £2.12 1,692In Stock	Mfr. Part No. ISL12057IBZ Mouser Part No 968-ISL12057IBZ	Renesas / Intersil	Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP	Datasheet	1,692In Stock	£2.12 £1.58 £1.45 £1.30 View £1.22 £1.17 £1.13 £1.10 £1.07	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	No Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C	ISL12057	SMD/SMT	Tube
Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL ISL12022MIBZ Renesas / Intersil 1: £5.65 333In Stock	Mfr. Part No. ISL12022MIBZ Mouser Part No 968-ISL12022MIBZ	Renesas / Intersil	Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL	Datasheet	333In Stock	£5.65 £4.36 £3.57 £3.35 View £3.29 £3.27 £3.19 Quote	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-20	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12022	SMD/SMT	Tube
Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS ISL12058IRTZ Renesas / Intersil 1: £2.12 851In Stock	Mfr. Part No. ISL12058IRTZ Mouser Part No 968-ISL12058IRTZ	Renesas / Intersil	Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS	Datasheet	851In Stock	£2.12 £1.58 £1.45 £1.29 View £1.21 £1.20 £1.14 £1.11 £1.08	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TDFN-8	No Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C	ISL12058	SMD/SMT	Tube
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-64 MCP79412-I/SN Microchip Technology 1: £0.849 3,227In Stock	Mfr. Part No. MCP79412-I/SN Mouser Part No 579-MCP79412ISN	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-64 Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	3,227In Stock	£0.849 £0.788 £0.78	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Tube
Real Time Clock SPI RTC 32.768 kHz 365nA 2.0V to 5.5V M41T93RQA6F STMicroelectronics 1: £5.84 762In Stock	Mfr. Part No. M41T93RQA6F Mouser Part No 511-M41T93RQA6F	STMicroelectronics	Real Time Clock SPI RTC 32.768 kHz 365nA 2.0V to 5.5V	Datasheet	762In Stock	Cut Tape £5.84 £4.87 £4.51 £4.12 Reel £3.68 View £3.88 £3.59 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	QFN-16	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial SPI bus RTC M41T93ZMY6F STMicroelectronics 1: £8.23 757In Stock	Mfr. Part No. M41T93ZMY6F Mouser Part No 511-M41T93ZMY6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	757In Stock	Cut Tape £8.23 £6.43 £5.98 £5.48 Reel £4.85 View £5.25 £5.05 £4.71 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOX-18	Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID MCP79410T-I/MNY Microchip Technology 1: £0.925 3,173In Stock	Mfr. Part No. MCP79410T-I/MNY Mouser Part No 579-MCP79410T-I/MNY	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	3,173In Stock	Cut Tape £0.925 Reel £0.78 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TDFN-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package. PCF85063ATT/AJ NXP Semiconductors 1: £0.713 6,025In Stock 27,500On Order	Mfr. Part No. PCF85063ATT/AJ Mouser Part No 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	6,025In Stock 27,500On Order On Order Ship Dates Mfr. No: PCF85063ATT/AJ Stock: 6,025 Can Dispatch Immediately On Order: 15,000 Expected 01/03/2027 12,500 Expected 05/07/2027 Factory Lead Time: 27 Weeks	Cut Tape £0.713 £0.485 £0.437 £0.406 View Reel £0.341 £0.378 £0.362 £0.356 £0.341 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 REAL TIME CLK ENHANC CD ESD & MOISTURESIS ISL12022MAIBZ Renesas / Intersil 1: £5.60 433In Stock	Mfr. Part No. ISL12022MAIBZ Mouser Part No 968-ISL12022MAIBZ	Renesas / Intersil	Real Time Clock REAL TIME CLK ENHANC CD ESD & MOISTURESIS	Datasheet	433In Stock	£5.60 £4.32 £4.00 £3.64 View £3.37 £3.27 £3.11	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-20	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12022	SMD/SMT	Tube
Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP ISL12057IUZ-T Renesas / Intersil 1: £2.19 4,796In Stock	Mfr. Part No. ISL12057IUZ-T Mouser Part No 968-ISL12057IUZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP	Datasheet	4,796In Stock	Cut Tape £2.19 £1.63 £1.49 £1.34 Reel £1.14 View £1.27 £1.23 £1.20 £1.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	MSOP-8	No Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C	ISL12057	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID MCP79410-I/ST Microchip Technology 1: £0.811 607In Stock	Mfr. Part No. MCP79410-I/ST Mouser Part No 579-MCP79410-I/ST	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	607In Stock	£0.811 £0.759 £0.752	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Tube
Real Time Clock Serial SPI bus RTC M41T93SMY6F STMicroelectronics 1: £7.73 20In Stock 1,000Expected 03/12/2026	Mfr. Part No. M41T93SMY6F Mouser Part No 511-M41T93SMY6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	20In Stock 1,000Expected 03/12/2026	Cut Tape £7.73 £6.01 £5.59 £4.93 View Reel £4.64 £4.74 £4.64 £4.64 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOX-18	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial SPI bus RTC M41T93SQA6F STMicroelectronics 1: £6.24 165In Stock	Mfr. Part No. M41T93SQA6F Mouser Part No 511-M41T93SQA6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	165In Stock	Cut Tape £6.24 £5.13 £4.62 £4.26 Reel £3.55 View £3.88 £3.82 £3.46 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	QFN-16	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Timer Control Periph eral A 926-DP8570AV A 926-DP8570AVX/NOPB DP8570AV/NOPB Texas Instruments 1: £39.86 7In Stock	Mfr. Part No. DP8570AV/NOPB Mouser Part No 926-DP8570AV/NOPB	Texas Instruments	Real Time Clock Timer Control Periph eral A 926-DP8570AV A 926-DP8570AVX/NOPB	Datasheet	7In Stock	£39.86 £32.65 £30.50 £29.03 £28.85	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	PLCC-28	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DP8570A	SMD/SMT	Tube
Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L ISL12022IBZ-T7A Renesas / Intersil 1: £4.00 47In Stock 2,500On Order	Mfr. Part No. ISL12022IBZ-T7A Mouser Part No 968-ISL12022IBZ-T7A	Renesas / Intersil	Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L	Datasheet	47In Stock 2,500On Order On Order Ship Dates Mfr. No: ISL12022IBZ-T7A Stock: 47 Can Dispatch Immediately On Order: 1,000 Expected 26/07/2027 1,500 Expected 30/07/2027 Factory Lead Time: 36 Weeks	Cut Tape £4.00 £3.04 £2.81 £2.55 Reel £2.42 View £2.32 £2.28 £2.23 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12022	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK ENHANC CD ESD & MOISTURESIS ISL12022MAIBZ-T Renesas / Intersil 1: £5.80 900In Stock	Mfr. Part No. ISL12022MAIBZ-T Mouser Part No 968-ISL12022MAIBZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLK ENHANC CD ESD & MOISTURESIS	Datasheet	900In Stock	Cut Tape £5.80 £4.48 £4.15 £3.78 Reel £3.40 View £3.55 £3.54 £3.27 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-20	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12022	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL ISL12022MIBZ-T Renesas / Intersil 1: £5.65 585In Stock	Mfr. Part No. ISL12022MIBZ-T Mouser Part No 968-ISL12022MIBZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL	Datasheet	585In Stock	Cut Tape £5.65 £4.36 £4.03 £3.68 Reel £3.30 View £3.46 £3.19 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-20	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12022	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP ISL12057IBZ-T Renesas / Intersil 1: £2.14 97In Stock 17,500On Order	Mfr. Part No. ISL12057IBZ-T Mouser Part No 968-ISL12057IBZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP	Datasheet	97In Stock 17,500On Order On Order Ship Dates Mfr. No: ISL12057IBZ-T Stock: 97 Can Dispatch Immediately On Order: 7,500 Expected 16/04/2027 10,000 Expected 14/06/2027 Factory Lead Time: 36 Weeks	Cut Tape £2.14 £1.60 £1.47 £1.32 Reel £1.15 View £1.25 £1.20 £1.18 £1.09 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	3.6 V	- 40 C	+ 85 C	ISL12057	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP ISL12057IUZ Renesas / Intersil 1: £2.23 751In Stock 6,450On Order	Mfr. Part No. ISL12057IUZ Mouser Part No 968-ISL12057IUZ	Renesas / Intersil	Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP	Datasheet	751In Stock 6,450On Order On Order Ship Dates Mfr. No: ISL12057IUZ Stock: 751 Can Dispatch Immediately On Order: 3,100 Expected 25/01/2027 3,350 Expected 08/03/2027 Factory Lead Time: 36 Weeks	£2.23 £1.67 £1.46 £1.36 View £1.28 £1.24 £1.18 £1.15 £1.13	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	MSOP-8	No Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C	ISL12057	SMD/SMT	Tube
Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS ISL12058IBZ Renesas / Intersil 1: £2.14 566In Stock	Mfr. Part No. ISL12058IBZ Mouser Part No 968-ISL12058IBZ	Renesas / Intersil	Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS	Datasheet	566In Stock	£2.14 £1.60 £1.47 £1.32 View £1.25 £1.20 £1.13 £1.10 £1.08	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	No Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C	ISL12058	SMD/SMT	Tube
Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L ISL12022IBZ Renesas / Intersil 1: £4.04 6,360On Order	Mfr. Part No. ISL12022IBZ Mouser Part No 968-ISL12022IBZ	Renesas / Intersil	Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L	Datasheet	6,360On Order On Order Ship Dates Mfr. No: ISL12022IBZ Stock: 0 On Order: 3,420 Expected 29/12/2026 2,940 Expected 08/01/2027 Factory Lead Time: 36 Weeks	£4.04 £3.03 £2.80 £2.55 View £2.44 £2.37 £2.26 £2.23	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12022	SMD/SMT	Tube
Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L ISL12022IBZ-T Renesas / Intersil 1: £3.92 2,467Expected 12/01/2027	Mfr. Part No. ISL12022IBZ-T Mouser Part No 968-ISL12022IBZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L	Datasheet	2,467Expected 12/01/2027	Cut Tape £3.92 £2.98 £2.75 £2.50 £2.47 Reel £2.47 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12022	SMD/SMT	Reel, Cut Tape, MouseReel

Real Time Clocks for Instrument Clusters

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Real Time Clocks for Instrument Clusters

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