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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) 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	Qualification	Packaging
Real Time Clock 64K (8Kx8) 100ns M48T18-100PC1 STMicroelectronics 1: Rp861.528,16 1.351In Stock	Mfr. Part No. M48T18-100PC1 Mouser Part No 511-M48T1810PC1	STMicroelectronics	Real Time Clock 64K (8Kx8) 100ns	Datasheet	1.351In Stock	Rp861.528,16 Rp696.414,16 Rp653.667,98 Rp640.458,86	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	M48T18	Through Hole		Tube
Real Time Clock I2C GP RTCC 64B SRAM MCP7940N-I/MS Microchip Technology 1: Rp16.511,40 2.005In Stock	Mfr. Part No. MCP7940N-I/MS Mouser Part No 579-MCP7940N-I/MS	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	2.005In Stock	Rp16.511,40 Rp15.227,18 Rp14.676,80	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	MSOP-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT		Tube
Real Time Clock I2C GP RTCC 64B SRAM MCP7940N-I/SN Microchip Technology 1: Rp15.594,10 10.207In Stock	Mfr. Part No. MCP7940N-I/SN Mouser Part No 579-MCP7940N-I/SN	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	10.207In Stock	Rp15.594,10 Rp14.493,34 Rp14.126,42	Min.: 1 Mult.: 1	Serial 2-Wire, 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 I2C GP RTCC 1Kb EE 64B SRAM ID MCP79410-I/MS Microchip Technology 1: Rp19.813,68 1.547In Stock	Mfr. Part No. MCP79410-I/MS Mouser Part No 579-MCP79410-I/MS	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	1.547In Stock	Rp19.813,68 Rp18.529,46 Rp18.125,85	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	MSOP-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT		Tube
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID MCP79410-I/SN Microchip Technology 1: Rp19.079,84 3.746In Stock	Mfr. Part No. MCP79410-I/SN Mouser Part No 579-MCP79410-I/SN	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	3.746In Stock	Rp19.079,84 Rp17.612,16 Rp16.951,70	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 I2C GP RTCC 1Kb EE 64B SRAM EUI-64 MCP79412-I/SN Microchip Technology 1: Rp20.730,98 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	Rp20.730,98 Rp19.263,30 Rp18.896,38	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 GP RTCC 1Kb EE 64B SRAM ID MCP79510-I/MS Microchip Technology 1: Rp23.666,34 1.127In Stock 1.600Expected 02/11/2026	Mfr. Part No. MCP79510-I/MS Mouser Part No 579-MCP79510-I/MS	Microchip Technology	Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	1.127In Stock 1.600Expected 02/11/2026	Rp23.666,34 Rp22.015,20 Rp21.281,36	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	MSOP-10	Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C		SMD/SMT		Tube
Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID MCP79520-I/MS Microchip Technology 1: Rp25.500,94 8.158In Stock	Mfr. Part No. MCP79520-I/MS Mouser Part No 579-MCP79520-I/MS	Microchip Technology	Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	8.158In Stock	Rp25.500,94 Rp23.482,88 Rp22.382,12	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	MSOP-10	Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C		SMD/SMT		Tube
Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-64 MCP79522-I/MS Microchip Technology 1: Rp27.152,08 1.395In Stock	Mfr. Part No. MCP79522-I/MS Mouser Part No 579-MCP79522-I/MS	Microchip Technology	Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-64 Learn More about Microchip Technology microchip mcp795xx	Datasheet	1.395In Stock	Rp27.152,08 Rp25.134,02 Rp23.849,80	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	MSOP-10	Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C		SMD/SMT		Tube
Real Time Clock 1Kb EE 64B SRAM WD TED ID MCP795W10-I/ST Microchip Technology 1: Rp33.206,26 3.232In Stock	Mfr. Part No. MCP795W10-I/ST Mouser Part No 579-MCP795W10-I/ST	Microchip Technology	Real Time Clock 1Kb EE 64B SRAM WD TED ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	3.232In Stock	Rp33.206,26 Rp30.454,36 Rp29.720,52	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-14	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT		Tube
Real Time Clock 64k NV SRAM with Phantom Clock DS1243Y-120+ Analog Devices / Maxim Integrated 1: Rp1.100.943,46 1.398In Stock	Mfr. Part No. DS1243Y-120+ Mouser Part No 700-DS1243Y-120	Analog Devices / Maxim Integrated	Real Time Clock 64k NV SRAM with Phantom Clock	Datasheet	1.398In Stock	Rp1.100.943,46 Rp899.871,30 Rp849.236,34 Rp825.753,46 View Rp767.596,64 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-28	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS1243Y	Through Hole		Tube
Real Time Clock 4096k NV SRAM with Phantom Clock DS1251Y-70+ Analog Devices / Maxim Integrated 1: Rp1.392.094,48 89In Stock	Mfr. Part No. DS1251Y-70+ Mouser Part No 700-DS1251Y-70	Analog Devices / Maxim Integrated	Real Time Clock 4096k NV SRAM with Phantom Clock	Datasheet	89In Stock	Rp1.392.094,48 Rp1.154.513,78 Rp1.085.165,90 Rp1.009.580,38	Min.: 1 Mult.: 1	Parallel, Phantom Clock	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-32	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS1251Y	Through Hole		Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302S+ Analog Devices / Maxim Integrated 1: Rp110.259,46 439In Stock	Mfr. Part No. DS1302S+ Mouser Part No 700-DS1302S	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	439In Stock	Rp110.259,46 Rp84.575,06 Rp78.153,96 Rp70.999,02 View Rp67.513,28 Rp65.495,22 Rp64.761,38 Rp64.027,54	Min.: 1 Mult.: 1	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 70 C	DS1302S	SMD/SMT		Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302SN+ Analog Devices / Maxim Integrated 1: Rp65.678,68 531In Stock	Mfr. Part No. DS1302SN+ Mouser Part No 700-DS1302SN	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	531In Stock	Rp65.678,68 Rp64.211,00 Rp62.743,32 Rp61.459,10 View Rp60.541,80 Rp59.624,50 Rp58.707,20 Rp57.973,36	Min.: 1 Mult.: 1	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1302SN	SMD/SMT		Tube
Real Time Clock Serial Alarm Real-Time Clock DS1306N+ Analog Devices / Maxim Integrated 1: Rp242.350,66 185In Stock	Mfr. Part No. DS1306N+ Mouser Part No 700-DS1306N	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	185In Stock	Rp242.350,66 Rp189.697,64 Rp176.488,52 Rp161.995,18 View Rp157.592,14 Rp150.987,58 Rp147.685,30 Quote	Min.: 1 Mult.: 1	Serial 3-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	DIP-16	Backup Switching	2 V	5.5 V	0 C	+ 70 C	DS1306N	Through Hole		Tube
Real Time Clock 64 x 8, Serial, I C Real-Time Clock DS1307N+ Analog Devices / Maxim Integrated 1: Rp143.282,26 364In Stock	Mfr. Part No. DS1307N+ Mouser Part No 700-DS1307N	Analog Devices / Maxim Integrated	Real Time Clock 64 x 8, Serial, I C Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1307	Datasheet	364In Stock	Rp143.282,26 Rp110.626,38 Rp99.985,70 Rp93.381,14 View Rp87.693,88 Rp86.409,66 Rp84.024,68 Rp81.823,16	Min.: 1 Mult.: 1	I2C	YY-MM-DD	HH:MM:SS:hh (12 hr, 24 hr)	PDIP-8	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1307N	Through Hole		Tube
Real Time Clock Low-Current I C RTCs for High-ESR Crystals DS1342U+ Analog Devices / Maxim Integrated 1: Rp48.249,98 1.063In Stock	Mfr. Part No. DS1342U+ Mouser Part No 700-DS1342U	Analog Devices / Maxim Integrated	Real Time Clock Low-Current I C RTCs for High-ESR Crystals Learn More about Analog Devices / Maxim Integrated maxim ds134x	Datasheet	1.063In Stock	Rp48.249,98 Rp47.149,22 Rp46.231,92 Rp45.314,62 View Rp44.580,78 Rp43.846,94 Rp43.296,56 Rp42.562,72	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	uSOP-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	DS1342U	SMD/SMT		Tube
Real Time Clock I C, 32-Bit Binary Counter Watchdog Clock DS1371U+ Analog Devices / Maxim Integrated 1: Rp87.877,34 2.094In Stock	Mfr. Part No. DS1371U+ Mouser Part No 700-DS1371U	Analog Devices / Maxim Integrated	Real Time Clock I C, 32-Bit Binary Counter Watchdog Clock	Datasheet	2.094In Stock	Rp87.877,34 Rp75.218,60 Rp63.844,08 Rp62.376,40 View Rp60.358,34 Rp59.624,50 Rp59.074,12 Quote	Min.: 1 Mult.: 1	I2C	Binary	Binary	uSOP-8	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	DS1371U	SMD/SMT		Tube
Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output DS1374C-33# Analog Devices / Maxim Integrated 1: Rp241.433,36 240In Stock	Mfr. Part No. DS1374C-33# Mouser Part No 700-DS1374C-33#	Analog Devices / Maxim Integrated	Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output	Datasheet	240In Stock	Rp241.433,36 Rp188.963,80 Rp171.351,64 Rp161.261,34 View Rp156.307,92 Rp150.437,20 Rp147.134,92 Quote	Min.: 1 Mult.: 1	I2C	Binary	Binary	SO-16	Backup Switching	2.97 V	5.5 V	- 40 C	+ 85 C	DS1374C	SMD/SMT		Tube
Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle DS1390U-3+ Analog Devices / Maxim Integrated 1: Rp67.880,20 365In Stock	Mfr. Part No. DS1390U-3+ Mouser Part No 700-DS1390U-3	Analog Devices / Maxim Integrated	Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle	Datasheet	365In Stock	Rp67.880,20 Rp66.412,52 Rp64.944,84 Rp63.660,62 View Rp62.559,86 Rp61.642,56 Rp60.725,26 Rp59.807,96	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	uSOP-10	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1390U	SMD/SMT		Tube
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R DS1746W-120+ Analog Devices / Maxim Integrated 1: Rp1.267.525,14 110In Stock	Mfr. Part No. DS1746W-120+ Mouser Part No 700-DS1746W-120	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R	Datasheet	110In Stock	Rp1.267.525,14 Rp1.047.006,22 Rp991.601,30 Rp979.309,48 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	2.97 V	3.63 V	0 C	+ 70 C	DS1746W	Through Hole		Tube
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R DS1747-70+ Analog Devices / Maxim Integrated 1: Rp1.599.954,66 285In Stock	Mfr. Part No. DS1747-70+ Mouser Part No 700-DS1747-70	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R	Datasheet	285In Stock	Rp1.599.954,66 Rp1.332.103,06 Rp1.254.132,56 Rp1.184.601,22 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS1747	Through Hole		Tube
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R DS1747W-120IND+ Analog Devices / Maxim Integrated 1: Rp1.608.210,36 221In Stock	Mfr. Part No. DS1747W-120IND+ Mouser Part No 700-DS1747W-120IND	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R	Datasheet	221In Stock	Rp1.608.210,36 Rp1.338.891,08 Rp1.260.553,66 Rp1.190.655,40 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	2.97 V	3.63 V	- 40 C	+ 85 C	DS1747W	Through Hole		Tube
Real Time Clock 5ppm, I C Real-Time Clock with SRAM DS3232MZ/V+ Analog Devices / Maxim Integrated 1: Rp248.221,38 179In Stock	Mfr. Part No. DS3232MZ/V+ Mouser Part No 700-DS3232MZ/V+	Analog Devices / Maxim Integrated	Real Time Clock 5ppm, I C Real-Time Clock with SRAM	Datasheet	179In Stock	Rp248.221,38 Rp195.201,44 Rp165.847,84 Rp158.509,44 View Rp150.070,28 Rp147.685,30 Quote	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	2.3 V	4.5 V	- 40 C	+ 85 C	DS3232MZ	SMD/SMT	AEC-Q100	Tube
Real Time Clock 16K (2Kx8) 150ns M48T02-150PC1 STMicroelectronics 1: Rp574.229,80 637In Stock	Mfr. Part No. M48T02-150PC1 Mouser Part No 511-M48T0215PC1	STMicroelectronics	Real Time Clock 16K (2Kx8) 150ns	Datasheet	637In Stock	Rp574.229,80 Rp456.448,48 Rp417.371,50 Rp395.356,30 Rp380.312,58	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