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Microchip Real Time Clock

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	RTC Bus Interface	Date Format	Time Format	Memory Size	Package / Case	Battery Backup Switching	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Packaging
Real Time Clock I2C GP RTCC,64B SRAM MCP7940N-I/P Microchip Technology 1: ¥152.8 518In Stock	Mfr. Part # MCP7940N-I/P Mouser Part # 579-MCP7940N-I/P	Microchip Technology	Real Time Clock I2C GP RTCC,64B SRAM Learn More about Microchip Technology microchip real time clocks	Datasheet	518In Stock	¥152.8 ¥141.2 ¥135	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	PDIP-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	Through Hole	Tube
Real Time Clock I2C GP RTCC 64B SRAM MCP7940N-I/ST Microchip Technology 1: ¥149.5 90In Stock 500Expected 10/13/2026	Mfr. Part # MCP7940N-I/ST Mouser Part # 579-MCP7940N-I/ST	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	90In Stock 500Expected 10/13/2026	¥149.5 ¥137.9 ¥136.4	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	TSSOP-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: ¥179.4 507In Stock	Mfr. Part # MCP79410-I/MS Mouser Part # 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	507In Stock	¥179.4 ¥167.8 ¥164.1	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	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/ST Microchip Technology 1: ¥179.4 767In Stock	Mfr. Part # MCP79410-I/ST Mouser Part # 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	767In Stock	¥179.4 ¥167.8 ¥164.1	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	TSSOP-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-48 MCP79411-I/MS Microchip Technology 1: ¥196 711In Stock	Mfr. Part # MCP79411-I/MS Mouser Part # 579-MCP79411IMS	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	711In Stock	¥196 ¥179.4 ¥171.1	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	MSOP-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 EUI-48 MCP79511-I/MS Microchip Technology 1: ¥230.9 544In Stock	Mfr. Part # MCP79511-I/MS Mouser Part # 579-MCP79511-I/MS	Microchip Technology	Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp795xx	Datasheet	544In Stock	¥230.9 ¥212.6 ¥207.6	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	MSOP-10	Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C	SMD/SMT	Tube
Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-64 MCP79512-I/MS Microchip Technology 1: ¥230.9 609In Stock	Mfr. Part # MCP79512-I/MS Mouser Part # 579-MCP79512-I/MS	Microchip Technology	Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-64 Learn More about Microchip Technology microchip mcp795xx	Datasheet	609In Stock	¥230.9 ¥212.6 ¥207.6	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	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/SL Microchip Technology 1: ¥290.7 438In Stock	Mfr. Part # MCP795W10-I/SL Mouser Part # 579-MCP795W10-I/SL	Microchip Technology	Real Time Clock 1Kb EE 64B SRAM WD TED ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	438In Stock	¥290.7 ¥270.7 ¥262.4	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	1 kB	SOIC-14	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	SMD/SMT	Tube
Real Time Clock 1Kb EE 64B SRAM WD TED EUI-48 MCP795W11-I/ST Microchip Technology 1: ¥313.9 5In Stock 192Expected 10/2/2026	Mfr. Part # MCP795W11-I/ST Mouser Part # 579-MCP795W11-I/ST	Microchip Technology	Real Time Clock 1Kb EE 64B SRAM WD TED EUI-48 Learn More about Microchip Technology microchip mcp795xx	Datasheet	5In Stock 192Expected 10/2/2026	¥313.9 ¥290.7 ¥284	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	1 kB	TSSOP-14	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	SMD/SMT	Tube
Real Time Clock 2Kb EE 64B SRAM WD TED ID MCP795W20-I/SL Microchip Technology 1: ¥307.3 333In Stock	Mfr. Part # MCP795W20-I/SL Mouser Part # 579-MCP795W20-I/SL	Microchip Technology	Real Time Clock 2Kb EE 64B SRAM WD TED ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	333In Stock	¥307.3 ¥284 ¥275.7	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	2 kB	SOIC-14	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	SMD/SMT	Tube
Real Time Clock 2Kb EE 64B SRAM WD TED ID MCP795W20-I/ST Microchip Technology 1: ¥313.9 192In Stock	Mfr. Part # MCP795W20-I/ST Mouser Part # 579-MCP795W20-I/ST	Microchip Technology	Real Time Clock 2Kb EE 64B SRAM WD TED ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	192In Stock	¥313.9 ¥290.7 ¥284	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	2 kB	TSSOP-14	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	SMD/SMT	Tube
Real Time Clock 2Kb EE 64B SRAM WD TED EUI-48 MCP795W21-I/SL Microchip Technology 1: ¥322.2 270In Stock	Mfr. Part # MCP795W21-I/SL Mouser Part # 579-MCP795W21-I/SL	Microchip Technology	Real Time Clock 2Kb EE 64B SRAM WD TED EUI-48 Learn More about Microchip Technology microchip mcp795xx	Datasheet	270In Stock	¥322.2 ¥299 ¥292.3	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	2 kB	SOIC-14	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	SMD/SMT	Tube
Real Time Clock 2Kb EE 64B SRAM WD TED EUI-48 MCP795W21-I/ST Microchip Technology 1: ¥328.9 121In Stock	Mfr. Part # MCP795W21-I/ST Mouser Part # 579-MCP795W21-I/ST	Microchip Technology	Real Time Clock 2Kb EE 64B SRAM WD TED EUI-48 Learn More about Microchip Technology microchip mcp795xx	Datasheet	121In Stock	¥328.9 ¥305.6 ¥297.3	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	2 kB	TSSOP-14	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	SMD/SMT	Tube
Real Time Clock 2Kb EE 64B SRAM WD TED EUI-64 MCP795W22-I/SL Microchip Technology 1: ¥322.2 5In Stock	Mfr. Part # MCP795W22-I/SL Mouser Part # 579-MCP795W22-I/SL	Microchip Technology	Real Time Clock 2Kb EE 64B SRAM WD TED EUI-64 Learn More about Microchip Technology microchip mcp795xx	Datasheet	5In Stock	¥322.2 ¥299 ¥292.3	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	2 kB	SOIC-14	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-48 MCP79411-I/ST Microchip Technology 1: ¥201 608In Stock	Mfr. Part # MCP79411-I/ST Mouser Part # 579-MCP79411IST	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	608In Stock	¥201 ¥184.4 ¥176.1 ¥174.4 ¥171.1	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	TSSOP-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	SMD/SMT	Tube
Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID MCP79520T-I/MN Microchip Technology 1: ¥524.9 2,905In Stock	Mfr. Part # MCP79520T-I/MN Mouser Part # 579-MCP79520T-I/MN	Microchip Technology	Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	2,905In Stock	Cut Tape ¥524.9 Reel ¥232.5 Quote Quote	Min.: 1 Mult.: 1 : 3,300												Reel, Cut Tape
Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-48 MCP79521-I/MS Microchip Technology 1: ¥245.8 150In Stock	Mfr. Part # MCP79521-I/MS Mouser Part # 579-MCP79521-I/MS	Microchip Technology	Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp795xx	Datasheet	150In Stock	¥245.8 ¥227.6 ¥222.6	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	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-48 MCP79521T-I/MS Microchip Technology 1: ¥265.8 730In Stock	Mfr. Part # MCP79521T-I/MS Mouser Part # 579-MCP79521T-I/MS	Microchip Technology	Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp795xx	Datasheet	730In Stock	Cut Tape ¥265.8 Reel ¥222.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial, I2C, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B		Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 1Kb EE 64B SRAM WD TED ID MCP795W10-I/ST Microchip Technology 1: ¥300.6 3,240On Order	Mfr. Part # MCP795W10-I/ST Mouser Part # 579-MCP795W10-I/ST	Microchip Technology	Real Time Clock 1Kb EE 64B SRAM WD TED ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	3,240On Order On Order Ship Dates Mfr. #: MCP795W10-I/ST Stock: 0 On Order: 2,880 Expected 10/6/2026 360 Expected 10/28/2026 Factory Lead-Time: 11 Weeks	¥300.6 ¥275.7 ¥269.1	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	1 kB	TSSOP-14	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	SMD/SMT	Tube
Real Time Clock I2C GP RTCC 64B SRAM ID MCP79400T-I/MNY Microchip Technology 3,300: ¥153.5 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # MCP79400T-I/MNY Mouser Part # 579-MCP79400TIMNY	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM ID Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel ¥153.5	Min.: 3,300 Mult.: 3,300 : 3,300												Reel
Real Time Clock I2C GP RTCC 64B SRAM ID MCP79400T-I/ST Microchip Technology 2,500: ¥147 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP79400T-I/ST Mouser Part # 579-MCP79400TIST	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM ID Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel ¥147	Min.: 2,500 Mult.: 2,500 : 2,500												Reel
Real Time Clock I2C GP RTCC 64B SRAM EUI-48 MCP79401T-I/MS Microchip Technology 2,500: ¥164.1 Non-Stocked Lead-Time 9 Weeks	Mfr. Part # MCP79401T-I/MS Mouser Part # 579-MCP79401TIMS	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel ¥164.1	Min.: 2,500 Mult.: 2,500 : 2,500												Reel
Real Time Clock I2C GP RTCC 64B SRAM EUI-48 MCP79401T-I/SN Microchip Technology 3,300: ¥153.5 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP79401T-I/SN Mouser Part # 579-MCP79401TISN	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel ¥153.5	Min.: 3,300 Mult.: 3,300 : 3,300												Reel
Real Time Clock I2C GP RTCC 64B SRAM EUI-48 MCP79401T-I/ST Microchip Technology 2,500: ¥164.1 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP79401T-I/ST Mouser Part # 579-MCP79401TIST	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel ¥164.1	Min.: 2,500 Mult.: 2,500 : 2,500												Reel
Real Time Clock I2C GP RTCC 64B SRAM EUI-64 MCP79402-I/ST Microchip Technology 1: ¥179.4 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP79402-I/ST Mouser Part # 579-MCP79402IST	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM EUI-64 Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	Non-Stocked Lead-Time 10 Weeks	¥179.4 ¥167.8 ¥164.1	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	TSSOP-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	SMD/SMT	Tube