Real Time Clock – Mouser Japan

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RX-8571SA/LC Real-Time Clock Modules

Epson Timing RX-8571SA/LC Real-Time Clock Modules offer a 1.6V to 5.5V operating voltage range and 220nA typical backup current. RX-8571SA/LA modules feature a built-in frequency adjusted 32.7kHz crystal unit, I²C-Bus interface, and 128-bit user RAM. These modules have numerous functions, including timers, alarms, and full calendar. Epson Timing RX-8571SA/LC Real-Time Clock Modules operate in the -40°C to +85°C temperature range.

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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	Package / Case	Battery Backup Switching	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Mounting Style	Packaging
Real Time Clock 5+/-23PPM RTC 250TR RX-8571LC:B3 PURE SN Epson Timing 1: ¥1,207.5 844In Stock	Mfr. Part # RX-8571LC:B3 PURE SN Mouser Part # 732-RX-8571LCB3	Epson Timing	Real Time Clock 5+/-23PPM RTC 250TR Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	844In Stock	Cut Tape ¥1,207.5 ¥931.8 ¥825.5 ¥770.7 Reel ¥709.2 View ¥699.3 ¥697.6 ¥672.7 Quote	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	VSOJ-12	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8571LC	SMD/SMT	Reel, Cut Tape
Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK RX-8571LCB0 PURE SN Epson Timing 1: ¥599.6 524In Stock	Mfr. Part # RX-8571LCB0 PURE SN Mouser Part # 732-RX8571LCB0PURESN	Epson Timing	Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	524In Stock	Cut Tape ¥599.6 ¥450.1 ¥411.9 ¥368.7 Reel ¥300.6 View ¥348.8 ¥302.3 ¥297.3 ¥295.7 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8571LC	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 3.0Volt -40 to 85C I2C BUS RX-8035SA:B3 PURE SN Epson Timing 1: ¥1,195.9 216In Stock 250Expected 2/3/2027	Mfr. Part # RX-8035SA:B3 PURE SN Mouser Part # 732-RX-8035SA:B3	Epson Timing	Real Time Clock 3.0Volt -40 to 85C I2C BUS	Datasheet	216In Stock 250Expected 2/3/2027	Cut Tape ¥1,195.9 ¥918.5 ¥848.8 ¥762.4 Reel ¥727.5 View ¥709.2 ¥696 ¥691 MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	Backup Switching	2.4 V	5.5 V	- 40 C	+ 85 C	RX-8035SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR RX-8803SA:UB3 PURE SN Epson Timing 1: ¥782.3 501In Stock 500Expected 10/1/2026	Mfr. Part # RX-8803SA:UB3 PURE SN Mouser Part # 732-RX-8803SAUB3	Epson Timing	Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR	Datasheet	501In Stock 500Expected 10/1/2026	Cut Tape ¥782.3 ¥591.3 ¥543.1 ¥491.7 Reel ¥466.7 View ¥446.8 ¥418.6	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8803SA	SMD/SMT	Reel, Cut Tape
Real Time Clock 5+/-23PPM REAL TIME CLOCK 1K TR RX-8571SA:B0 PURE SN Epson Timing 1: ¥518.2 212In Stock	Mfr. Part # RX-8571SA:B0 PURE SN Mouser Part # 732-RX8571SAB0PURESN	Epson Timing	Real Time Clock 5+/-23PPM REAL TIME CLOCK 1K TR Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	212In Stock	Cut Tape ¥518.2 ¥398.6 ¥367.1 ¥333.9 Reel ¥290.7 View ¥317.3 ¥305.6 ¥282.4 ¥279 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8571SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 3.0Volt -40 to 85C I2C BUS RX-8035SA:AA3 Epson Timing 1: ¥666.1 Non-Stocked	Mfr. Part # RX-8035SA:AA3 Mouser Part # 732-RX-8035SA:AA3	Epson Timing	Real Time Clock 3.0Volt -40 to 85C I2C BUS	Datasheet	Non-Stocked	Cut Tape ¥666.1 ¥496.6 ¥455.1 ¥431.9 Reel ¥365.4 View ¥357.1 ¥345.5 ¥338.8 MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C			SOP-14		2.4 V	5.5 V	- 40 C	+ 85 C	RX-8035SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock i2C Bus -40C +85C 5 +/-23ppm 14 PIN RX-8571SA:B3 PURE SN Epson Timing 1: ¥1,117.9 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RX-8571SA:B3 PURE SN Mouser Part # 732-RX-8571SA:B3S	Epson Timing	Real Time Clock i2C Bus -40C +85C 5 +/-23ppm 14 PIN Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape ¥1,117.9 ¥858.7 ¥794 ¥722.5 Reel ¥679.3 View ¥651.1 ¥637.8 ¥626.2 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8571SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX-8571NB:B0 PURE SN 5+/-23PPM REAL TIME CLOCK 1K TR RX-8571NBB0 PURE SN Epson Timing 1,000: ¥299 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RX-8571NBB0 PURE SN Mouser Part # 732-RX8571NBB0PURESN	Epson Timing	Real Time Clock RX-8571NB:B0 PURE SN 5+/-23PPM REAL TIME CLOCK 1K TR	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel ¥299 ¥289 ¥284	Min.: 1,000 Mult.: 1,000 : 1,000										RX-8571LC		Reel
Real Time Clock RX-8803LC:UC0 PURE SN I2C-BUS RTC +/-5.0PPM-30 70C 1K T/R RX-8803LCUC0 PURE SN Epson Timing 1,000: ¥516.6 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RX-8803LCUC0 PURE SN Mouser Part # 732-RX8803LCUC0PUREN	Epson Timing	Real Time Clock RX-8803LC:UC0 PURE SN I2C-BUS RTC +/-5.0PPM-30 70C 1K T/R	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel ¥516.6	Min.: 1,000 Mult.: 1,000 : 1,000										RX-8571SA		Reel
Real Time Clock I2C-BUS RTC +/-3.4PPM-40 85C 250 T/R RX-8803SA:UA3 PURE SN Epson Timing 250: ¥1,247.4 Non-Stocked Lead-Time 20 Weeks	Mfr. Part # RX-8803SA:UA3 PURE SN Mouser Part # 732-X8803SAUA3PURESN	Epson Timing	Real Time Clock I2C-BUS RTC +/-3.4PPM-40 85C 250 T/R	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel ¥1,247.4 ¥1,225.8 ¥1,214.2 Quote Quote	Min.: 250 Mult.: 250 : 250										RX-8803SA		Reel
Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250 T/R RX-8803SA:UC3 PURE SN Epson Timing 250: ¥858.7 Non-Stocked Lead-Time 20 Weeks	Mfr. Part # RX-8803SA:UC3 PURE SN Mouser Part # 732-X8803SAUC3PURESN	Epson Timing	Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250 T/R	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel ¥858.7 ¥848.8 ¥840.5 Quote Quote	Min.: 250 Mult.: 250 : 250										RX-8803SA		Reel
Real Time Clock 5+/-23PPM RTC BULK - CUT TAPE Epson Timing RX-8571LC:B PURE SN RX-8571LC:B PURE SN Epson Timing 1: ¥1,034.8 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # RX-8571LC:B PURE SN Mouser Part # 732-RX8571LC:BPURESN	Epson Timing	Real Time Clock 5+/-23PPM RTC BULK - CUT TAPE Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	Non-Stocked Lead-Time 26 Weeks	¥1,034.8 ¥948.4 ¥797.3	Min.: 1 Mult.: 1										RX-8571LC		Bulk
Real Time Clock RTC +/-3.4PPM-40 85C 250 T/R Epson Timing RX-4803SA:UA3 PURE SN RX-4803SA:UA3 PURE SN Epson Timing 250: ¥1,335.4 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # RX-4803SA:UA3 PURE SN Mouser Part # 732-X4803SAUA3PURESN	Epson Timing	Real Time Clock RTC +/-3.4PPM-40 85C 250 T/R	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel ¥1,335.4 ¥1,290.6 ¥1,275.6 Quote Quote	Min.: 250 Mult.: 250 : 250										RX-4803SA		Reel
Real Time Clock RTC +/-5.0PPM-40 85C 250 T/R Epson Timing RX-4803SA:UB3 PURE SN RX-4803SA:UB3 PURE SN Epson Timing 250: ¥860.4 Non-Stocked Lead-Time 20 Weeks	Mfr. Part # RX-4803SA:UB3 PURE SN Mouser Part # 732-X4803SAUB3PURESN	Epson Timing	Real Time Clock RTC +/-5.0PPM-40 85C 250 T/R	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel ¥860.4 ¥852.1 ¥842.1 Quote Quote	Min.: 250 Mult.: 250 : 250										RX-4803SA		Reel
Real Time Clock REAL TIME CLOCK 0+/-5PPM 250TR Epson Timing RX-8035SA:AC3 PURE SN RX-8035SA:AC3 PURE SN Epson Timing 250: ¥808.9 Non-Stocked Lead-Time 20 Weeks	Mfr. Part # RX-8035SA:AC3 PURE SN Mouser Part # 732-X8035SAAC3PURESN	Epson Timing	Real Time Clock REAL TIME CLOCK 0+/-5PPM 250TR	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel ¥808.9 ¥787.3 ¥732.5 ¥730.8 Quote Quote	Min.: 250 Mult.: 250 : 250										RX-8035SA		Reel

RX-8571SA/LC Real-Time Clock Modules

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