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Reel Real Time Clock

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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	Qualification	Packaging
Real Time Clock Serial SPI bus RTC M41T93ZMY6F STMicroelectronics 1: $10.97 757In Stock	Mfr. Part No. M41T93ZMY6F Mouser Part No 511-M41T93ZMY6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	757In Stock	Cut Tape $10.97 $8.56 $7.97 $7.30 Reel $6.45 View $6.99 $6.73 $6.28 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOX-18	Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41T94MQ6F STMicroelectronics 1: $5.48 2,618In Stock 5,000Expected 2027/04/28	Mfr. Part No. M41T94MQ6F Mouser Part No 511-M41T94MQ6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	2,618In Stock 5,000Expected 2027/04/28	Cut Tape $5.48 $4.18 $3.86 $3.50 View Reel $3.01 $3.33 $3.26 $3.23 $3.01 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-16	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T94	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock 256K (32Kx8) 70ns M48T35Y-70MH1F STMicroelectronics 1: $24.20 235In Stock	Mfr. Part No. M48T35Y-70MH1F Mouser Part No 511-M48T35Y-70MH1F	STMicroelectronics	Real Time Clock 256K (32Kx8) 70ns	Datasheet	235In Stock	Cut Tape $24.20 $19.39 $18.18 $16.85 View Reel $15.47 $16.49 $15.47 $15.47 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOX-28	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	M48T35Y	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock I2C GP RTCC 64B SRAM MCP7940NT-I/MNY Microchip Technology 1: $1.01 9,596In Stock	Mfr. Part No. MCP7940NT-I/MNY Mouser Part No 579-MCP7940NT-I/MNY	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	9,596In Stock	Cut Tape $1.01 Reel $0.858 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TDFN-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/MNY Microchip Technology 1: $1.22 3,167In Stock	Mfr. Part No. MCP79410T-I/MNY Mouser Part No 579-MCP79410T-I/MNY	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	3,167In Stock	Cut Tape $1.22 Reel $1.04 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TDFN-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 EUI-48 MCP79411T-I/SN Microchip Technology 1: $1.23 5,458In Stock	Mfr. Part No. MCP79411T-I/SN Mouser Part No 579-MCP79411TISN	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	5,458In Stock	Cut Tape $1.23 Reel $1.04 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 SPI GP RTCC 2Kb EE 64B SRAM ID MCP79520T-I/MS Microchip Technology 1: $1.49 1,890In Stock 2,500Expected 2026/11/10	Mfr. Part No. MCP79520T-I/MS Mouser Part No 579-MCP79520T-I/MS	Microchip Technology	Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	1,890In Stock 2,500Expected 2026/11/10	Cut Tape $1.49 Reel $1.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial, I2C, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C		SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock Serial RTC A 595-BQ3 2000D A 595-BQ32000 A 595-BQ32000D BQ32000DR Texas Instruments 1: $2.33 2,566In Stock 5,000Expected 2027/02/25	Mfr. Part No. BQ32000DR Mouser Part No 595-BQ32000DR	Texas Instruments	Real Time Clock Serial RTC A 595-BQ3 2000D A 595-BQ32000 A 595-BQ32000D	Datasheet	2,566In Stock 5,000Expected 2027/02/25	Cut Tape $2.33 $1.71 $1.56 $1.40 Reel $1.19 View $1.31 $1.27 $1.23 $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	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		Reel, Cut Tape, MouseReel
Real Time Clock 2-wire Real Time Clock S-35390A-I8T1U ABLIC 1: $1.85 2,726In Stock	Mfr. Part No. S-35390A-I8T1U Mouser Part No 628-S-35390A-I8T1U	ABLIC	Real Time Clock 2-wire Real Time Clock Learn More about ABLIC seiko s 35390a clocks	Datasheet	2,726In Stock	Cut Tape $1.85 $1.36 $1.24 $1.10 View Reel $0.898 $1.04 $0.985 $0.98 $0.947 $0.898 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SNT-A-8	No Backup Switching	1.3 V	5.5 V	- 40 C	+ 85 C	S-35390	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock Real Time Clock S-35390A-T8T1U ABLIC 1: $1.85 2,585In Stock	Mfr. Part No. S-35390A-T8T1U Mouser Part No 628-S-35390A-T8T1U	ABLIC	Real Time Clock Real Time Clock Learn More about ABLIC seiko s 35390a clocks	Datasheet	2,585In Stock	Cut Tape $1.85 $1.36 $1.24 $1.10 View Reel $0.854 $1.04 $0.985 $0.98 $0.947 $0.854 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	No Backup Switching	1.3 V	5.5 V	- 40 C	+ 85 C	S-35390	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock Real-time Clock Mod I2C Bus PT7C4337WEX Diodes Incorporated 1: $1.08 3,983In Stock	Mfr. Part No. PT7C4337WEX Mouser Part No 729-PT7C4337WEX	Diodes Incorporated	Real Time Clock Real-time Clock Mod I2C Bus Learn More about Diodes Incorporated diodes timing solutions	Datasheet	3,983In Stock	Cut Tape $1.08 $0.775 $0.676 $0.614 View Reel $0.513 $0.592 $0.58 $0.57 $0.513 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		No Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C		SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock Automotive RTC IC with 400 kHz I2C interface in TSSOP8 package. PCA85073ADP/Q900Z NXP Semiconductors 1: $1.65 3,225In Stock 32,500On Order	Mfr. Part No. PCA85073ADP/Q900Z Mouser Part No 771-PCA85073ADPQ900Z	NXP Semiconductors	Real Time Clock Automotive RTC IC with 400 kHz I2C interface in TSSOP8 package. Learn More about NXP Semiconductors nxp pca85073a cmos rtc	Datasheet	3,225In Stock 32,500On Order On Order Ship Dates Mfr. No: PCA85073ADP/Q900Z Stock: 3,225 Can Dispatch Immediately On Order: 17,500 Expected 2027/02/16 15,000 Expected 2027/03/22 Factory Lead Time: 27 Weeks	Cut Tape $1.65 $1.21 $1.10 $0.973 View Reel $0.82 $0.915 $0.88 $0.856 $0.82 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TSSOP-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 105 C	PCA85073A	SMD/SMT	AEC-Q100	Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package. PCF85063ATT/AJ NXP Semiconductors 1: $0.95 6,045In Stock 27,500On Order	Mfr. Part No. PCF85063ATT/AJ Mouser Part No 771-PCF85063ATT/AJ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package. Learn More about NXP Semiconductors nxp pcf85063 clocks	Datasheet	6,045In Stock 27,500On Order On Order Ship Dates Mfr. No: PCF85063ATT/AJ Stock: 6,045 Can Dispatch Immediately On Order: 15,000 Expected 2027/03/01 12,500 Expected 2027/07/05 Factory Lead Time: 27 Weeks	Cut Tape $0.95 $0.647 $0.582 $0.541 View Reel $0.455 $0.504 $0.483 $0.475 $0.455 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85063A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz SPI Interface in HXSON10 package. PCF85063BTL/1,118 NXP Semiconductors 1: $0.80 13,377In Stock	Mfr. Part No. PCF85063BTL/1,118 Mouser Part No 771-PCF85063BTL1118	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz SPI Interface in HXSON10 package. Learn More about NXP Semiconductors nxp pcf85063 clocks	Datasheet	13,377In Stock	Cut Tape $0.80 $0.579 $0.526 $0.479 View Reel $0.381 $0.447 $0.426 $0.414 $0.404 $0.381 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	DFN2626-10	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85063B	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP8 package. PCF85263ATT/AJ NXP Semiconductors 1: $1.38 7,080In Stock 40,000Expected 2027/02/15	Mfr. Part No. PCF85263ATT/AJ Mouser Part No 771-PCF85263ATT/AJ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP8 package. Learn More about NXP Semiconductors nxp pcf85263a rtc	Datasheet	7,080In Stock 40,000Expected 2027/02/15	Cut Tape $1.38 $1.01 $0.907 $0.804 View Reel $0.679 $0.754 $0.725 $0.709 $0.679 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85263A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP10 package. PCF85263ATT1/AZ NXP Semiconductors 1: $1.45 5,392In Stock 7,500Expected 2026/12/07	Mfr. Part No. PCF85263ATT1/AZ Mouser Part No 771-PCF85263ATT1/AZ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP10 package. Learn More about NXP Semiconductors nxp pcf85263a rtc	Datasheet	5,392In Stock 7,500Expected 2026/12/07	Cut Tape $1.45 $1.06 $0.955 $0.844 Reel $0.714 View $0.791 $0.759 $0.733 $0.69 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-10	Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85263A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in TSSOP8 package. PCF85363ATT/AJ NXP Semiconductors 1: $1.76 8,231In Stock 5,000Expected 2027/05/03	Mfr. Part No. PCF85363ATT/AJ Mouser Part No 771-PCF85363ATT/AJ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in TSSOP8 package. Learn More about NXP Semiconductors nxp pcf85063 clocks	Datasheet	8,231In Stock 5,000Expected 2027/05/03	Cut Tape $1.76 $1.28 $1.16 $1.03 Reel $0.861 View $0.965 $0.928 $0.911 $0.847 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85363A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package. PCF8563TS/5,118 NXP Semiconductors 1: $1.83 10,139In Stock 6,495Expected 2026/11/10	Mfr. Part No. PCF8563TS/5,118 Mouser Part No 771-PCF8563TS/5118	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package.	Datasheet	10,139In Stock 6,495Expected 2026/11/10	Cut Tape $1.83 $1.34 $1.22 $1.10 Reel $0.943 View $1.04 $1.01 $0.99 $0.902 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TSSOP-8	No Backup Switching	1 V	5.5 V	- 40 C	+ 85 C	PCF8563	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock Hi Prec I2C-Bus Real Time Clock Mod R2025S-E2-FE Nisshinbo 1: $4.48 2,262In Stock	Mfr. Part No. R2025S-E2-FE Mouser Part No 848-R2025S-E2-FE	Nisshinbo	Real Time Clock Hi Prec I2C-Bus Real Time Clock Mod Learn More about Nisshinbo ricoh r2025 i2c bus rtc module	Datasheet	2,262In Stock	Cut Tape $4.48 $3.40 $3.12 $2.83 Reel $2.54 View $2.67 $2.64 $2.42 $2.33 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	R2025S/D	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock 4-Wire Real Time Clock IC R2043T-E2-F Nisshinbo 1: $1.51 2,176In Stock	Mfr. Part No. R2043T-E2-F Mouser Part No 848-R2043TE2F	Nisshinbo	Real Time Clock 4-Wire Real Time Clock IC	Datasheet	2,176In Stock	Cut Tape $1.51 $1.10 $0.987 $0.876 Reel $0.741 View $0.822 $0.79 $0.782 $0.726 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Serial 4-Wire, SPI	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	R2043T	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock 2-Wire Real Time Clock IC R2051S01-E2-F Nisshinbo 1: $1.78 4,120In Stock	Mfr. Part No. R2051S01-E2-F Mouser Part No 848-R2051S01E2F	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC	Datasheet	4,120In Stock	Cut Tape $1.78 $1.31 $1.19 $1.05 Reel $0.885 View $0.983 $0.944 $0.927 $0.865 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SSOP-16	Backup Switching	750 mV	5.5 V	- 40 C	+ 85 C	R2051S	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock 2-Wire Real Time Clock IC R2221T-E2-F Nisshinbo 1: $1.66 2,268In Stock	Mfr. Part No. R2221T-E2-F Mouser Part No 848-R2221TE2F	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC	Datasheet	2,268In Stock	Cut Tape $1.66 $1.22 $1.10 $0.976 Reel $0.821 View $0.918 $0.882 $0.864 $0.802 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	R2221T	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK ENHANC CD ESD & MOISTURESIS ISL12022MAIBZ-T Renesas / Intersil 1: $7.72 900In Stock	Mfr. Part No. ISL12022MAIBZ-T Mouser Part No 968-ISL12022MAIBZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLK ENHANC CD ESD & MOISTURESIS	Datasheet	900In Stock	Cut Tape $7.72 $5.97 $5.52 $5.04 Reel $4.52 View $4.73 $4.72 $4.36 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	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		Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL ISL12022MIBZ-T Renesas / Intersil 1: $7.52 585In Stock	Mfr. Part No. ISL12022MIBZ-T Mouser Part No 968-ISL12022MIBZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL	Datasheet	585In Stock	Cut Tape $7.52 $5.80 $5.37 $4.90 Reel $4.40 View $4.61 $4.24 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	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		Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP ISL12057IUZ-T Renesas / Intersil 1: $2.92 6,056In Stock	Mfr. Part No. ISL12057IUZ-T Mouser Part No 968-ISL12057IUZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP	Datasheet	6,056In Stock	Cut Tape $2.92 $2.17 $1.99 $1.79 Reel $1.52 View $1.69 $1.64 $1.59 $1.47 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	MSOP-8	No Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C	ISL12057	SMD/SMT		Reel, Cut Tape, MouseReel