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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.	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 Real Time Clock S-35190A-J8T1U ABLIC 1: ¥249.2 4,632In Stock	Mfr. Part # S-35190A-J8T1U Mouser Part # 628-35190A-G	ABLIC	Real Time Clock Real Time Clock	Datasheet	4,632In Stock	Cut Tape ¥249.2 ¥197.7 ¥184.4 ¥169.4 View Reel ¥141.7 ¥161.8 ¥157.6 ¥156.3 ¥141.8 ¥141.7 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-8	Backup Switching	1.3 V	5.5 V	- 40 C	+ 85 C	S-35190	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL ISL12022MIBZ Renesas / Intersil 1: ¥1,249.1 333In Stock	Mfr. Part # ISL12022MIBZ Mouser Part # 968-ISL12022MIBZ	Renesas / Intersil	Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL	Datasheet	333In Stock	¥1,249.1 ¥963.4 ¥789 ¥742.5 View ¥727.5 ¥722.5 ¥704.3 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 64K (8Kx8) 150ns M48T18-150PC1 STMicroelectronics 1: ¥8,383.1 396In Stock	Mfr. Part # M48T18-150PC1 Mouser Part # 511-M48T1815PC1	STMicroelectronics	Real Time Clock 64K (8Kx8) 150ns	Datasheet	396In Stock	¥8,383.1 ¥6,331.7 ¥6,054.3 ¥5,943.1 View ¥5,918.1 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	M48T18	Through Hole	Tube
Real Time Clock LW PWR RTC W/RESEAL 8LD ISL12008IB8Z-T Renesas / Intersil 1: ¥536.5 1,154In Stock	Mfr. Part # ISL12008IB8Z-T Mouser Part # 968-ISL12008IB8Z-T	Renesas / Intersil	Real Time Clock LW PWR RTC W/RESEAL 8LD	Datasheet	1,154In Stock	Cut Tape ¥536.5 ¥400.3 ¥365.4 ¥328.9 Reel ¥277.4 View ¥310.6 ¥304 ¥287.4 ¥272.4 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	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12008	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 MCP79411T-I/MS Microchip Technology 1: ¥207.6 4,734In Stock	Mfr. Part # MCP79411T-I/MS Mouser Part # 579-MCP79411TIMS	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	4,734In Stock	Cut Tape ¥207.6 Reel ¥171.1 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	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	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLKRTC IN ISL1219IUZ-T Renesas / Intersil 1: ¥674.4 2,080In Stock	Mfr. Part # ISL1219IUZ-T Mouser Part # 968-ISL1219IUZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLKRTC IN	Datasheet	2,080In Stock	Cut Tape ¥674.4 ¥508.3 ¥466.7 ¥421.9 View Reel ¥372.1 ¥400.3 ¥397 ¥373.7 ¥372.1 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	MSOP-10	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL1219	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C RTCC 64B SRAM No VBAT MCP7940M-I/ST Microchip Technology 1: ¥117.9 1,292In Stock	Mfr. Part # MCP7940M-I/ST Mouser Part # 579-MCP7940M-I/ST	Microchip Technology	Real Time Clock I2C RTCC 64B SRAM No VBAT Learn More about Microchip Technology microchip real time clocks	Datasheet	1,292In Stock	¥117.9 ¥114.9 ¥109.6 ¥103 ¥102.8	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Tube
Real Time Clock Serial RTC A 595-BQ3 2000DR A 595-BQ3200 A 595-BQ32000DR BQ32000D Texas Instruments 1: ¥380.4 673In Stock	Mfr. Part # BQ32000D Mouser Part # 595-BQ32000D	Texas Instruments	Real Time Clock Serial RTC A 595-BQ3 2000DR A 595-BQ3200 A 595-BQ32000DR	Datasheet	673In Stock	¥380.4 ¥318.9 ¥289 ¥247.5 View ¥240.8 ¥239.2 ¥234.2 ¥230.9	Min.: 1 Mult.: 1	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	3 V	3.6 V	- 40 C	+ 85 C	BQ32000	SMD/SMT	Tube
Real Time Clock 2-Wire Real Time Clock IC R2051L02-E2 Nisshinbo 1: ¥267.4 3,620In Stock	Mfr. Part # R2051L02-E2 Mouser Part # 848-R2051L02-E2	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC	Datasheet	3,620In Stock	Cut Tape ¥267.4 ¥196 ¥177.7 ¥156.8 Reel ¥123.4 View ¥147.3 ¥141.5 ¥128.4 ¥122.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	QFN023023-16	Backup Switching	750 mV	5.5 V	- 40 C	+ 85 C	R2051L	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 1Kb EE 64B SRAM WD TED EUI-64 MCP795W12-I/SL Microchip Technology 1: ¥307.3 717In Stock	Mfr. Part # MCP795W12-I/SL Mouser Part # 579-MCP795W12-I/SL	Microchip Technology	Real Time Clock 1Kb EE 64B SRAM WD TED EUI-64 Learn More about Microchip Technology microchip mcp795xx	Datasheet	717In Stock	¥307.3 ¥284 ¥269.1 ¥267.4	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-14	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Tube
Real Time Clock 4-wire Serial Interface RV5C348B-E2-F Nisshinbo 1: ¥272.4 1,445In Stock	Mfr. Part # RV5C348B-E2-F Mouser Part # 848-RV5C348B-E2-F	Nisshinbo	Real Time Clock 4-wire Serial Interface	Datasheet	1,445In Stock	Cut Tape ¥272.4 ¥199.3 ¥181 ¥159.6 Reel ¥132.4 View ¥150 ¥144.2 ¥132.5 ¥131.7 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Serial 4-Wire	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SSOP-10	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	RV5C348	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768 kHz OPTION A TEMP COMP SPI RV-3049-C3-32.768KHZ-OPTION-A-TA-QC Micro Crystal 1: ¥790.6 899In Stock NRND	Mfr. Part # RV-3049-C3-32.768KHZ-OPTION-A-TA-QC Mouser Part # 428-202184-MG01 NRND	Micro Crystal	Real Time Clock 32.768 kHz OPTION A TEMP COMP SPI	Datasheet	899In Stock	¥790.6 ¥596.3 ¥548.1 ¥493.3 View ¥468.4 ¥465.1 ¥393.7 ¥392 ¥390.3	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.3 V	5.5 V	- 40 C	+ 85 C	RV-3049-C3	SMD/SMT
Real Time Clock 4-Wire Real Time Clock IC RV5C348A-E2-F Nisshinbo 1: ¥272.4 1,720In Stock	Mfr. Part # RV5C348A-E2-F Mouser Part # 848-RV5C348AE2F	Nisshinbo	Real Time Clock 4-Wire Real Time Clock IC	Datasheet	1,720In Stock	Cut Tape ¥272.4 ¥199.3 ¥181 ¥159.6 Reel ¥132.4 View ¥150 ¥144.2 ¥132.5 ¥126.9 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Serial 4-Wire, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SSOP-10	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	RV5C348	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 3-Wire Real Time Clock IC R2033T-E2-F Nisshinbo 1: ¥247.5 1,989In Stock	Mfr. Part # R2033T-E2-F Mouser Part # 848-R2033TE2F	Nisshinbo	Real Time Clock 3-Wire Real Time Clock IC	Datasheet	1,989In Stock	Cut Tape ¥247.5 ¥181 ¥163.9 ¥145.5 View Reel ¥115.3 ¥136.5 ¥131.2 ¥116.3 ¥115.3 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-10	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	R2033T	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 2-Wire Real Time Clock IC R2223T-E2-F Nisshinbo 1: ¥270.7 1,680In Stock	Mfr. Part # R2223T-E2-F Mouser Part # 848-R2223TE2F	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC		1,680In Stock	Cut Tape ¥270.7 ¥199.3 ¥181 ¥160.8 Reel ¥123.2 View ¥152.5 ¥145.3 ¥123.4 ¥122.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-10	No Backup Switching	1.5 V	5.5 V	- 40 C	+ 85 C	R2223T	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Parallel RTC A 595-B Q4802LYDW A 595-BQ4 A 595-BQ4802LYDW BQ4802LYDWR Texas Instruments 1: ¥1,523.1 895In Stock End of Life	Mfr. Part # BQ4802LYDWR Mouser Part # 595-BQ4802LYDWR End of Life	Texas Instruments	Real Time Clock Parallel RTC A 595-B Q4802LYDW A 595-BQ4 A 595-BQ4802LYDW	Datasheet	895In Stock	Cut Tape ¥1,523.1 ¥1,179.3 ¥1,094.6 ¥999.9 Reel ¥895.3 View ¥955.1 ¥928.5 ¥873.7 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-28	Backup Switching	2.7 V	3.6 V	0 C	+ 70 C	BQ4802LY	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 3V/5V Real-Time Clock DS1685EN-3+T&R Analog Devices / Maxim Integrated 1: ¥1,365.3 1,069In Stock	Mfr. Part # DS1685EN-3+T&R Mouser Part # 700-DS1685EN-3T&R	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clock	Datasheet	1,069In Stock	Cut Tape ¥1,365.3 ¥1,335.4 ¥1,305.5 ¥1,279 View Reel ¥1,222.5 ¥1,260.7 ¥1,240.8 ¥1,222.5 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-24	Backup Switching	2.7 V	3.7 V	- 40 C	+ 85 C	DS1685EN	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 3V/5V Real-Time Clock DS1687-5IND+ Analog Devices / Maxim Integrated 1: ¥5,521.2 86In Stock	Mfr. Part # DS1687-5IND+ Mouser Part # 700-DS1687-5IND	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clock	Datasheet	86In Stock	¥5,521.2 ¥4,469.8 ¥4,205.7 ¥4,032.9 ¥3,778.8	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-24	Integrated Battery	4.5 V	5.5 V	- 40 C	+ 85 C	DS1687	Through Hole	Tube
Real Time Clock I C Serial Real-Time Clock DS1337C#T&R Analog Devices / Maxim Integrated 1: ¥883.7 1,316In Stock	Mfr. Part # DS1337C#T&R Mouser Part # 700-DS1337C#T&R-	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1337 rtc	Datasheet	1,316In Stock	Cut Tape ¥883.7 ¥865.4 ¥845.4 ¥828.8 Reel ¥792.3 View ¥817.2 ¥803.9 ¥780.7 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-16	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	DS1337C	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C Serial Real-Time Clock DS1339U-3+ Analog Devices / Maxim Integrated 1: ¥642.8 1,309In Stock	Mfr. Part # DS1339U-3+ Mouser Part # 700-DS1339U-3	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	1,309In Stock	¥642.8 ¥629.5 ¥614.6 ¥602.9 View ¥593 ¥584.7 ¥576.4 ¥568.1	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	uSOP-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1339U	SMD/SMT	Tube
Real Time Clock I C Serial Real-Time Clock DS1339U-3+T&R Analog Devices / Maxim Integrated 1: ¥642.8 423In Stock	Mfr. Part # DS1339U-3+T&R Mouser Part # 700-DS1339U-3T&R	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	423In Stock	Cut Tape ¥642.8 ¥629.5 ¥614.6 ¥602.9 View ¥593 ¥584.7 ¥576.4 ¥568.1 MouseReel Available	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	uSOP-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1339U	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial Alarm Real-Time Clock DS1305N+ Analog Devices / Maxim Integrated 1: ¥2,305.5 1,067In Stock	Mfr. Part # DS1305N+ Mouser Part # 700-DS1305N	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	1,067In Stock	¥2,305.5 ¥1,805.5 ¥1,677.6 ¥1,541.4 View ¥1,511.5 ¥1,436.8 ¥1,403.5 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	- 40 C	+ 85 C	DS1305N	Through Hole	Tube
Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks DS1501YN+ Analog Devices / Maxim Integrated 1: ¥2,285.5 162In Stock	Mfr. Part # DS1501YN+ Mouser Part # 700-DS1501YN	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks	Datasheet	162In Stock	¥2,285.5 ¥2,235.7 ¥2,187.5 ¥2,142.7 View ¥2,111.1 ¥2,077.9 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PDIP-28	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1501YN	Through Hole	Tube
Real Time Clock I C 32-Bit Binary Counter RTC DS1672S-3+T&R Analog Devices / Maxim Integrated 1: ¥528.2 1,880In Stock	Mfr. Part # DS1672S-3+T&R Mouser Part # 700-DS1672S-3T&R	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	1,880In Stock	Cut Tape ¥528.2 ¥516.6 ¥504.9 ¥495 View ¥486.7 ¥480 ¥473.4 ¥465.1 MouseReel Available	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	Binary	Binary	SOIC-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1672S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C Serial Real-Time Clock DS1337+ Analog Devices / Maxim Integrated 1: ¥968.4 2,513In Stock	Mfr. Part # DS1337+ Mouser Part # 700-DS1337	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1337 rtc	Datasheet	2,513In Stock	¥968.4 ¥737.5 ¥677.7 ¥558.1 View ¥534.8 ¥526.5 ¥513.2	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	DIP-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	DS1337	Through Hole	Tube