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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 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator MAX31343ETAY+T Analog Devices / Maxim Integrated 1: £5.46 3,027In Stock	Mfr. Part No. MAX31343ETAY+T Mouser Part No 700-MAX31343ETAY+T	Analog Devices / Maxim Integrated	Real Time Clock 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator	Datasheet	3,027In Stock	Cut Tape £5.46 £4.20 £3.88 £3.54 £3.38 Reel £3.38 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,421 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TDFN-8	Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN AM0805AQ Ambiq 1: £0.653 2,609In Stock	Mfr. Part No. AM0805AQ Mouser Part No 222-AM0805AQ	Ambiq	Real Time Clock Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN Learn More about Ambiq artasie am08x5 clocks	Datasheet	2,609In Stock	£0.653 £0.551	Min.: 1 Mult.: 1										Artasie I2C
Real Time Clock Real-Time Clock I2C interface with power management, -40 to +85 C, 16-pin QFN AM1805AQ Ambiq 1: £0.736 13,527In Stock 15,000Expected 08/01/2027	Mfr. Part No. AM1805AQ Mouser Part No 222-AM1805AQ	Ambiq	Real Time Clock Real-Time Clock I2C interface with power management, -40 to +85 C, 16-pin QFN Learn More about Ambiq am18x5 rtcs	Datasheet	13,527In Stock 15,000Expected 08/01/2027	£0.736 £0.611	Min.: 1 Mult.: 1										Artasie I2C w/ Power Management
Real Time Clock 32.768kHz I2C 2.5ppm 3.2x1.5x0.8mm Temperature Sensor & Real Time Clock RV-3032-C7 32.768kHz-2.5PPM-TA-QC Micro Crystal 1: £3.12 1,172In Stock 36,000Expected 18/12/2026	Mfr. Part No. RV-3032-C7 32.768kHz-2.5PPM-TA-QC Mouser Part No 428-203803-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C 2.5ppm 3.2x1.5x0.8mm Temperature Sensor & Real Time Clock Learn More about Micro Crystal rv 3032 c7 rtc module	Datasheet	1,172In Stock 36,000Expected 18/12/2026	Cut Tape £3.12 £2.34 £2.15 £1.93 Reel £1.76 View £1.83 £1.79 £1.74 £1.57 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		Backup Switching	1.3 V	5.5 V	- 40 C	+ 105 C	RV-3032-C7	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41ST85WMH6F STMicroelectronics 1: £7.80 565In Stock	Mfr. Part No. M41ST85WMH6F Mouser Part No 511-M41ST85WMH6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	565In Stock	Cut Tape £7.80 £6.08 £5.66 £5.18 Reel £4.64 View £4.94 £4.77 £4.53 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOH-28	Backup Switching	2.7 V	3.6 V	- 40 C	+ 85 C	M41ST85W	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 1280 (160x8) M41ST87WMX6TR STMicroelectronics 1: £8.10 1,173In Stock	Mfr. Part No. M41ST87WMX6TR Mouser Part No 511-M41ST87WMX6TR	STMicroelectronics	Real Time Clock Serial 1280 (160x8)	Datasheet	1,173In Stock	Cut Tape £8.10 £6.32 £5.88 £5.39 Reel £4.83 View £5.12 £5.02 £4.67 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOX-28	Backup Switching	2.7 V	3.6 V	- 40 C	+ 85 C	M41ST87W	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 2.0 to 5.5V 64 (8X8) M41T00SM6F STMicroelectronics 1: £3.20 4,651In Stock 5,000Expected 25/11/2026	Mfr. Part No. M41T00SM6F Mouser Part No 511-M41T00SM6F	STMicroelectronics	Real Time Clock 2.0 to 5.5V 64 (8X8)	Datasheet	4,651In Stock 5,000Expected 25/11/2026	Cut Tape £3.20 £2.43 £2.23 £2.01 View Reel £1.73 £1.90 £1.89 £1.82 £1.73 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YYYY-MM-DD	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T00S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 64 (8X8) M41T0M6F STMicroelectronics 1: £3.53 4,034In Stock 12,500On Order	Mfr. Part No. M41T0M6F Mouser Part No 511-M41T0M6F	STMicroelectronics	Real Time Clock Serial 64 (8X8)	Datasheet	4,034In Stock 12,500On Order On Order Ship Dates Mfr. No: M41T0M6F Stock: 4,034 Can Dispatch Immediately On Order: 5,000 Expected 14/12/2026 7,500 Expected 17/05/2027 Factory Lead Time: 30 Weeks	Cut Tape £3.53 £2.66 £2.44 £2.22 View Reel £1.90 £2.10 £2.09 £1.96 £1.90 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	No Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T0	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41T11M6F STMicroelectronics 1: £2.71 2,034In Stock	Mfr. Part No. M41T11M6F Mouser Part No 511-M41T11M6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	2,034In Stock	Cut Tape £2.71 £2.04 £1.87 £1.68 Reel £1.42 View £1.58 £1.55 £1.48 £1.36 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T11	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41T11MH6F STMicroelectronics 1: £7.65 1,385In Stock	Mfr. Part No. M41T11MH6F Mouser Part No 511-M41T11MH6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	1,385In Stock	Cut Tape £7.65 £5.95 £5.53 £5.06 Reel £4.52 View £4.80 £4.53 £4.23 MouseReel Available	Min.: 1 Mult.: 1 : 936	Serial	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOX-28	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T11	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 160 (20x8) M41T80M6F STMicroelectronics 1: £4.32 1,840In Stock	Mfr. Part No. M41T80M6F Mouser Part No 511-M41T80M6F	STMicroelectronics	Real Time Clock Serial 160 (20x8)	Datasheet	1,840In Stock	Cut Tape £4.32 £3.34 £3.06 £2.79 View Reel £2.50 £2.65 £2.56 £2.52 £2.50 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	No Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T80	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T82RM6F STMicroelectronics 1: £3.25 2,402In Stock 2,500Expected 08/02/2027	Mfr. Part No. M41T82RM6F Mouser Part No 511-M41T82RM6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	2,402In Stock 2,500Expected 08/02/2027	Cut Tape £3.25 £2.44 £2.25 £2.03 Reel £1.75 View £1.93 £1.91 £1.80 £1.74 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T82	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T82SM6F STMicroelectronics 1: £2.44 3,212In Stock 5,000Expected 08/11/2027	Mfr. Part No. M41T82SM6F Mouser Part No 511-M41T82SM6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	3,212In Stock 5,000Expected 08/11/2027	Cut Tape £2.44 £1.83 £1.68 £1.51 Reel £1.26 View £1.42 £1.39 £1.35 £1.25 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	M41T82	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T82ZM6F STMicroelectronics 1: £2.66 5,426In Stock 12,500Expected 25/10/2027	Mfr. Part No. M41T82ZM6F Mouser Part No 511-M41T82ZM6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	5,426In Stock 12,500Expected 25/10/2027	Cut Tape £2.66 £2.01 £1.84 £1.65 Reel £1.46 View £1.56 £1.53 £1.48 £1.43 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T82	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock SPI RTC 32.768 kHz 365nA 2.0V to 5.5V M41T93RQA6F STMicroelectronics 1: £6.29 1,083In 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	1,083In Stock	Cut Tape £6.29 £4.85 £4.49 £4.10 Reel £3.68 View £3.79 £3.62 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: £8.01 757In Stock	Mfr. Part No. M41T93ZMY6F Mouser Part No 511-M41T93ZMY6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	757In Stock	Cut Tape £8.01 £6.25 £5.82 £5.33 Reel £4.85 View £5.11 £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 Serial 512 (64x8) M41T94MQ6F STMicroelectronics 1: £4.11 2,659In Stock 5,000Expected 28/04/2027	Mfr. Part No. M41T94MQ6F Mouser Part No 511-M41T94MQ6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	2,659In Stock 5,000Expected 28/04/2027	Cut Tape £4.11 £3.13 £2.90 £2.63 View Reel £2.26 £2.50 £2.44 £2.43 £2.26 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-16	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T94	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 16K (2Kx8) 150ns M48T02-150PC1 STMicroelectronics 1: £23.50 643In Stock	Mfr. Part No. M48T02-150PC1 Mouser Part No 511-M48T0215PC1	STMicroelectronics	Real Time Clock 16K (2Kx8) 150ns	Datasheet	643In Stock	£23.50 £18.68 £17.08 £16.18 £15.57	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-24	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T02	Through Hole	Tube
Real Time Clock 16K (2Kx8) 70ns M48T02-70PC1 STMicroelectronics 1: £22.50 430In Stock	Mfr. Part No. M48T02-70PC1 Mouser Part No 511-M48T0270PC1	STMicroelectronics	Real Time Clock 16K (2Kx8) 70ns	Datasheet	430In Stock	£22.50 £17.87 £16.87 £15.65 View £15.10 £14.57 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-24	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T02	Through Hole	Tube
Real Time Clock 64K (8Kx8) 150ns M48T08-150PC1 STMicroelectronics 1: £30.49 108In Stock 480Expected 29/10/2026	Mfr. Part No. M48T08-150PC1 Mouser Part No 511-M48T0815PC1	STMicroelectronics	Real Time Clock 64K (8Kx8) 150ns	Datasheet	108In Stock 480Expected 29/10/2026	£30.49 £24.55 £23.01 £22.31 View £20.89 £19.86 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-28	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T08	Through Hole	Tube
Real Time Clock 256K (32Kx8) 70ns M48T35-70PC1 STMicroelectronics 1: £41.01 234In Stock	Mfr. Part No. M48T35-70PC1 Mouser Part No 511-M48T3570PC1	STMicroelectronics	Real Time Clock 256K (32Kx8) 70ns	Datasheet	234In Stock	£41.01 £33.37 £31.34 £29.57 View £29.55 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-28	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T35	Through Hole	Tube
Real Time Clock 256K (32Kx8) 70ns M48T35Y-70MH1F STMicroelectronics 1: £18.17 520In Stock	Mfr. Part No. M48T35Y-70MH1F Mouser Part No 511-M48T35Y-70MH1F	STMicroelectronics	Real Time Clock 256K (32Kx8) 70ns	Datasheet	520In Stock	Cut Tape £18.17 £14.55 £13.64 £12.65 View Reel £11.61 £12.38 £11.61 £11.61 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOX-28	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	M48T35Y	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 64K (8Kx8) 70ns M48T58-70PC1 STMicroelectronics 1: £35.93 179In Stock	Mfr. Part No. M48T58-70PC1 Mouser Part No 511-M48T5870PC1	STMicroelectronics	Real Time Clock 64K (8Kx8) 70ns	Datasheet	179In Stock	£35.93 £29.24 £27.47 £26.87 View £25.28 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-28	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T58	Through Hole	Tube
Real Time Clock 64K (8Kx8) 70ns M48T58Y-70PC1 STMicroelectronics 1: £28.03 417In Stock	Mfr. Part No. M48T58Y-70PC1 Mouser Part No 511-M48T58Y70PC1	STMicroelectronics	Real Time Clock 64K (8Kx8) 70ns	Datasheet	417In Stock	£28.03 £22.58 £21.18 £20.12 View £19.21 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-28	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	M48T58Y	Through Hole	Tube
Real Time Clock I2C GP RTCC 64B SRAM MCP7940NT-I/MNY Microchip Technology 1: £0.759 9,606In Stock	Mfr. Part No. MCP7940NT-I/MNY Mouser Part No 579-MCP7940NT-I/MNY	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	9,606In Stock	Cut Tape £0.759 Reel £0.644 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	Serial 2-Wire, 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