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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900CE UA3 Epson Timing 1: $9.71 1,019In Stock	Mfr. Part No. RX8900CE UA3 Mouser Part No 732-RX8900CEUA3	Epson Timing	Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus Learn More about Epson Timing epson rx8900ce rtc modules	Datasheet	1,019In Stock	Cut Tape $9.71 $7.56 $7.02 $6.43 Reel $6.09 View $5.96 $5.82 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus RX8900SA UC3 PURE SN Epson Timing 1: $5.99 771In Stock	Mfr. Part No. RX8900SA UC3 PURE SN Mouser Part No 732-RX8900SAUC3SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus Learn More about Epson Timing epson rx8900sa rtc modules	Datasheet	771In Stock	Cut Tape $5.99 $4.59 $4.24 $3.86 Reel $3.67 View $3.56 $3.52 $3.47 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900SA UA0 PURE SN Epson Timing 1: $4.89 921In Stock	Mfr. Part No. RX8900SA UA0 PURE SN Mouser Part No 732-RX8900SAUA0SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus Learn More about Epson Timing epson rx8900ce rtc modules	Datasheet	921In Stock	Cut Tape $4.89 $3.69 $3.39 $3.06 Reel $2.70 View $2.90 $2.88 $2.64 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX8804CE:XA3 REAL TIME CLOCK +/-3.4PPM DTCXO 250TR RX8804CE XA3 Epson Timing 1: $10.56 245In Stock	Mfr. Part No. RX8804CE XA3 Mouser Part No 732-RX8804CEXA3	Epson Timing	Real Time Clock RX8804CE:XA3 REAL TIME CLOCK +/-3.4PPM DTCXO 250TR	Datasheet	245In Stock	Cut Tape $10.56 $8.22 $7.63 $6.99 Reel $6.60 View $6.59 $6.53 Quote	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX8804CE	SMD/SMT	Reel, Cut Tape
Real Time Clock RX8804CE:XB0 REAL TIME CLOCK +/-5.0PPM DTCXO 1K TR RX8804CE XB0 Epson Timing 1: $3.78 990In Stock	Mfr. Part No. RX8804CE XB0 Mouser Part No 732-RX8804CEXB0	Epson Timing	Real Time Clock RX8804CE:XB0 REAL TIME CLOCK +/-5.0PPM DTCXO 1K TR Learn More about Epson Timing epson rx8804ce clock modules	Datasheet	990In Stock	Cut Tape $3.78 $2.85 $2.62 $2.36 Reel $2.01 View $2.22 $2.16 $1.94 $1.91	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	+ 105 C		SMD/SMT	Reel, Cut Tape
Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900SA UA3 PURE SN Epson Timing 1: $9.94 14In Stock	Mfr. Part No. RX8900SA UA3 PURE SN Mouser Part No 732-RX8900SAUA3SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus Learn More about Epson Timing epson rx8900sa rtc modules	Datasheet	14In Stock	Cut Tape $9.94 $7.73 $7.18 $6.57 Reel $6.23 View $6.11 $5.96 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 AB-RTC-XPA-32.768KHZ-2-T1 ABRACON 1: $2.91 900In Stock New Product	Mfr. Part No. AB-RTC-XPA-32.768KHZ-2-T1 Mouser Part No 815-AB-XPA-32768K2T1 New Product	ABRACON	Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 Learn More about ABRACON ultra low power rtc modules	Datasheet	900In Stock	Cut Tape $2.91 $2.17 $1.98 $1.78 Reel $1.56 View $1.68 $1.64 $1.51 $1.48 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C			DFN-8	Integrated Battery	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XPA-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 AB-RTC-XL-32.768KHZ-2-T1 ABRACON 1: $2.92 852In Stock New Product	Mfr. Part No. AB-RTC-XL-32.768KHZ-2-T1 Mouser Part No 815-RTCXL32768KHZ2T1 New Product	ABRACON	Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 Learn More about ABRACON ab rtc xl low power rtcs	Datasheet	852In Stock	Cut Tape $2.92 $2.18 $1.99 $1.79 Reel $1.59 View $1.69 $1.65 $1.53 $1.51 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C		HH:MM:SS (24 hr)	SON-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XL	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 AB-RTC-XP-32.768KHZ-2-T1 ABRACON 1: $2.80 900In Stock New Product	Mfr. Part No. AB-RTC-XP-32.768KHZ-2-T1 Mouser Part No 815-XP32762T1 New Product	ABRACON	Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 Learn More about ABRACON ultra low power rtc modules	Datasheet	900In Stock	Cut Tape $2.80 $2.09 $1.91 $1.71 Reel $1.50 View $1.62 $1.58 $1.45 $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C			DFN-8	Integrated Battery	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XP-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CEXS A0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS A06 Epson Timing 1: $5.85 1,988In Stock	Mfr. Part No. RX4901CE XS A06 Mouser Part No 732-RX4901CEXSA06	Epson Timing	Real Time Clock RX4901CEXS A0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1,988In Stock	Cut Tape $5.85 $4.46 $4.11 $3.73 View Reel $3.25 $3.54 $3.43 $3.34 $3.25 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX4901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 250TR RX6110SA:B3 PURE SN Epson Timing 1: $4.95 411In Stock	Mfr. Part No. RX6110SA:B3 PURE SN Mouser Part No 732-RX6110SAB3PURESN	Epson Timing	Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 250TR	Datasheet	411In Stock	Cut Tape $4.95 $3.77 $3.47 $3.15 Reel $2.94 View $2.87 $2.82 $2.74 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial, I2C, SPI	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX6110SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CE XS B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS B06 Epson Timing 1: $5.85 1,695In Stock	Mfr. Part No. RX4901CE XS B06 Mouser Part No 732-RX4901CEXSB06	Epson Timing	Real Time Clock RX4901CE XS B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1,695In Stock	Cut Tape $5.85 $4.46 $4.11 $3.73 View Reel $3.24 $3.54 $3.43 $3.34 $3.24 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX4901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS D06 Epson Timing 1: $5.93 1,920In Stock	Mfr. Part No. RX4901CE XS D06 Mouser Part No 732-RX4901CEXSD06	Epson Timing	Real Time Clock RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1,920In Stock	Cut Tape $5.93 $4.53 $4.18 $3.80 View Reel $3.20 $3.61 $3.53 $3.32 $3.20 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX4901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus RX8900SA UB0 PURE SN Epson Timing 1: $3.05 529In Stock	Mfr. Part No. RX8900SA UB0 PURE SN Mouser Part No 732-RX8900SAUB0SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus Learn More about Epson Timing epson rx8900sa rtc modules	Datasheet	529In Stock	Cut Tape $3.05 $2.28 $2.08 $1.87 Reel $1.60 View $1.77 $1.76 $1.56 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RTC VSOJ 12PIN 5+/-23PPM 250TR Epson Timing RX-4571LC:B3 PURE SN RX-4571LC:B3 PURE SN Epson Timing 1: $7.68 250In Stock	Mfr. Part No. RX-4571LC:B3 PURE SN Mouser Part No 732-RX4571LCB3PURESN	Epson Timing	Real Time Clock RTC VSOJ 12PIN 5+/-23PPM 250TR	Datasheet	250In Stock	Cut Tape $7.68 $5.92 $5.49 $5.00 Reel $4.72 View $4.57 $4.40 $4.39 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 3-Wire			VSOJ-12	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-4571LC	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus AB-RTC-TH-32.768kHz-2-T3 ABRACON 1: $3.30 2,960In Stock New Product	Mfr. Part No. AB-RTC-TH-32.768kHz-2-T3 Mouser Part No 815-ABRTCTH32768K2T3 New Product	ABRACON	Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus Learn More about ABRACON ab rtc tx 32 modules	Datasheet	2,960In Stock	Cut Tape $3.30 $2.47 $2.26 $2.04 Reel $1.86 View $1.93 $1.88 $1.87 $1.78 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	I2C				Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	AB-RTC-TH-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RTC TCXO I2C 3ppm 3215 AB-RTC-TN-32.768kHz-2-T1 ABRACON 1: $5.22 826In Stock New Product	Mfr. Part No. AB-RTC-TN-32.768kHz-2-T1 Mouser Part No 815-ABRTCTN32768K2T1 New Product	ABRACON	Real Time Clock RTC TCXO I2C 3ppm 3215 Learn More about ABRACON ab rtc tn real time clocks	Datasheet	826In Stock	Cut Tape $5.22 $3.98 $3.67 $3.33 Reel $3.05 View $3.17 $3.09 $2.95 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C			DFN-8	Backup Switching	1.5 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RTC TCXO I2C 3ppm 3215 AEC-Q200 AB-RTC-TNA-32.768kHz-2-T1 ABRACON 1: $5.44 990In Stock New Product	Mfr. Part No. AB-RTC-TNA-32.768kHz-2-T1 Mouser Part No 815-BRTCTNA32768K2T1 New Product	ABRACON	Real Time Clock RTC TCXO I2C 3ppm 3215 AEC-Q200 Learn More about ABRACON ab rtc tn real time clocks	Datasheet	990In Stock	Cut Tape $5.44 $4.15 $3.82 $3.47 Reel $3.18 View $3.30 $3.22 $3.08 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C			DFN-8	Backup Switching	1.5 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus AB-RTC-TA-32.768kHz-2-T3 ABRACON 1: $1.90 2,086In Stock New Product	Mfr. Part No. AB-RTC-TA-32.768kHz-2-T3 Mouser Part No 815-ABRTCTA32768K2T3 New Product	ABRACON	Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus Learn More about ABRACON ab rtc tx 32 modules	Datasheet	2,086In Stock	Cut Tape $1.90 $1.39 $1.26 $1.12 Reel $0.994 View $1.10 $0.868 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	I2C			SOP-8	Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	AB-RTC-TA-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus AB-RTC-TC-32.768kHz-2-T ABRACON 1: $3.67 2,049In Stock New Product	Mfr. Part No. AB-RTC-TC-32.768kHz-2-T Mouser Part No 815-ABRTCTC32768K2T3 New Product	ABRACON	Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus Learn More about ABRACON ab rtc tx 32 modules	Datasheet	2,049In Stock	Cut Tape $3.67 $2.77 $2.54 $2.30 Reel $2.03 View $2.18 $2.11 $1.95 MouseReel Available	Min.: 1 Mult.: 1 : 1,300	I2C				Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	AB-RTC-TC-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Built-In XO Real Time Clock Module with I2C Bus AB-RTC-XB-32.768kHz-2-T3 ABRACON 1: $2.65 1,968In Stock New Product	Mfr. Part No. AB-RTC-XB-32.768kHz-2-T3 Mouser Part No 815-ABRTCXB32768K2T3 New Product	ABRACON	Real Time Clock Built-In XO Real Time Clock Module with I2C Bus Learn More about ABRACON ab rtc xb 32 module	Datasheet	1,968In Stock	Cut Tape $2.65 $1.97 $1.80 $1.61 Reel $1.46 View $1.53 $1.47 $1.45 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	I2C				Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C	AB-RTC-XB-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7mm RV-8263-C8 32.768kHz-20PPM-TA-QC Micro Crystal 1: $1.51 4,312In Stock	Mfr. Part No. RV-8263-C8 32.768kHz-20PPM-TA-QC Mouser Part No 428-204208-MC01	Micro Crystal	Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7mm Learn More about Micro Crystal rv 8263 c8 rtc modules	Datasheet	4,312In Stock	Cut Tape $1.51 $1.11 $0.991 $0.879 Reel $0.792 View $0.826 $0.793 $0.749 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SON-8		900 mV	5.5 V	- 40 C	+ 85 C	RV-8263-C8	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C GP RTCC 64B SRAM MCP7940NT-I/SN Microchip Technology 1: $0.92 41,659In Stock	Mfr. Part No. MCP7940NT-I/SN Mouser Part No 579-MCP7940NT-I/SN	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	41,659In Stock	Cut Tape $0.92 $0.918 Reel $0.77 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	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	Reel, Cut Tape, MouseReel
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID MCP79410T-I/SN Microchip Technology 1: $1.11 14,619In Stock	Mfr. Part No. MCP79410T-I/SN Mouser Part No 579-MCP79410T-I/SN	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	14,619In Stock	Cut Tape $1.11 Reel $0.924 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	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	Reel, Cut Tape, MouseReel
Real Time Clock I C RTC with Trickle Charger DS1340U-33+T&R Analog Devices / Maxim Integrated 1: $6.51 5,993In Stock	Mfr. Part No. DS1340U-33+T&R Mouser Part No 700-DS1340U-33T&R	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with Trickle Charger Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	5,993In Stock	Cut Tape $6.51 $4.99 $4.61 $4.20 $4.09 Reel $3.59 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	uSOP-8	Backup Switching	2.97 V	5.5 V	- 40 C	+ 85 C	DS1340U	SMD/SMT	Reel, Cut Tape, MouseReel