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Real Time Clock

Real Time Clocks are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many real time clock manufacturers including Analog Devices, Epson, Microchip, Micro Crystal, NXP, Renesas Electronics, STMicroelectronics & more.
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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 1Kb EE 64B SRAM WD TED ID MCP795W10-I/SL Microchip Technology 1: $1.75 438In Stock	Mfr. Part No. MCP795W10-I/SL Mouser Part No 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	$1.75 $1.63 $1.58	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 1Kb EE 64B SRAM WD TED EUI-48 MCP795W11-I/ST Microchip Technology 1: $1.89 195In Stock	Mfr. Part No. MCP795W11-I/ST Mouser Part No 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	195In Stock	$1.89 $1.75 $1.71	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	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: $1.85 333In Stock	Mfr. Part No. MCP795W20-I/SL Mouser Part No 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	$1.85 $1.71 $1.66	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 2Kb EE 64B SRAM WD TED ID MCP795W20-I/ST Microchip Technology 1: $1.89 192In Stock	Mfr. Part No. MCP795W20-I/ST Mouser Part No 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	$1.89 $1.75 $1.71	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	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: $1.94 270In Stock	Mfr. Part No. MCP795W21-I/SL Mouser Part No 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	$1.94 $1.80 $1.76	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 2Kb EE 64B SRAM WD TED EUI-48 MCP795W21-I/ST Microchip Technology 1: $1.98 121In Stock	Mfr. Part No. MCP795W21-I/ST Mouser Part No 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	$1.98 $1.84 $1.79	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	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: $1.94 5In Stock	Mfr. Part No. MCP795W22-I/SL Mouser Part No 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	$1.94 $1.80 $1.76	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 RTC IC with 114x8 NV SRAM BQ3285S-SB2 Texas Instruments 1: $18.29 17In Stock End of Life	Mfr. Part No. BQ3285S-SB2 Mouser Part No 595-BQ3285S-SB2 End of Life	Texas Instruments	Real Time Clock RTC IC with 114x8 NV SRAM	Datasheet	17In Stock	$18.29 $15.10 $12.83 $12.50 View $11.92 $11.71 $11.70	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-24	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	BQ3285	SMD/SMT	Tube
Real Time Clock Parallel RTC BQ4802YPW Texas Instruments 1: $12.61 76In Stock End of Life	Mfr. Part No. BQ4802YPW Mouser Part No 595-BQ4802YPW End of Life	Texas Instruments	Real Time Clock Parallel RTC	Datasheet	76In Stock	$12.61 $9.87 $9.19 $8.44 View $8.36 $7.87 $7.69 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	TSSOP-28	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	BQ4802Y	SMD/SMT	Tube
Real Time Clock Ultra-Low power 12C Real Time clock w/ p Analog Devices / Maxim Integrated MAX31331TETB+T MAX31331TETB+T Analog Devices / Maxim Integrated 1: $3.71 3,559In Stock	Mfr. Part No. MAX31331TETB+T Mouser Part No 700-MAX31331TETB+T	Analog Devices / Maxim Integrated	Real Time Clock Ultra-Low power 12C Real Time clock w/ p Learn More about Analog Devices / Maxim Integrated maxim max31331 real time clock	Datasheet	3,559In Stock	Cut Tape $3.71 $2.78 $2.55 $2.29 Reel $2.14 View $2.17 $2.14 $1.89 MouseReel Available	Min.: 1 Mult.: 1 : 2,500												Reel, Cut Tape, MouseReel
Real Time Clock 256k NV SRAM with Phantom Clock DS1244Y-70+ Analog Devices / Maxim Integrated 1: $66.36 54In Stock	Mfr. Part No. DS1244Y-70+ Mouser Part No 700-DS1244Y-70	Analog Devices / Maxim Integrated	Real Time Clock 256k NV SRAM with Phantom Clock	Datasheet	54In Stock	$66.36 $54.81 $51.92 $51.26	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-28	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS1244Y	Through Hole	Tube
Real Time Clock 1024k NV SRAM with Phantom Clock DS1248WP-120+ Analog Devices / Maxim Integrated 1: $46.23 3In Stock	Mfr. Part No. DS1248WP-120+ Mouser Part No 700-DS1248WP-120	Analog Devices / Maxim Integrated	Real Time Clock 1024k NV SRAM with Phantom Clock	Datasheet	3In Stock	$46.23 $45.21 $44.23 $43.34 View $42.68 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	PowerCap Module-34	Backup Switching	2.97 V	3.63 V	0 C	+ 70 C	DS1248WP	SMD/SMT	Tray
Real Time Clock 1024k NV SRAM with Phantom Clock DS1248Y-70+ Analog Devices / Maxim Integrated 1: $73.53 147In Stock	Mfr. Part No. DS1248Y-70+ Mouser Part No 700-DS1248Y-70	Analog Devices / Maxim Integrated	Real Time Clock 1024k NV SRAM with Phantom Clock	Datasheet	147In Stock	$73.53 $60.77 $57.51 $54.83	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-32	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS1248Y	Through Hole	Tube
Real Time Clock 4096k NV SRAM with Phantom Clock DS1251YP-70IND+ Analog Devices / Maxim Integrated 1: $91.49 88In Stock	Mfr. Part No. DS1251YP-70IND+ Mouser Part No 700-DS1251YP-70IND	Analog Devices / Maxim Integrated	Real Time Clock 4096k NV SRAM with Phantom Clock	Datasheet	88In Stock	$91.49 $76.19 $71.72 $65.51 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	PowerCap Module-34	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1251YP	SMD/SMT	Tray
Real Time Clock Real-Time Clocks DS12885N+ Analog Devices / Maxim Integrated 1: $15.49 21In Stock	Mfr. Part No. DS12885N+ Mouser Part No 700-DS12885N	Analog Devices / Maxim Integrated	Real Time Clock Real-Time Clocks	Datasheet	21In Stock	$15.49 $12.13 $11.28 $9.94 View $9.86 $9.32 $9.14 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD	HH:MM:SS (24 hr)	PDIP-24	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS12885N	Through Hole	Tube
Real Time Clock Real-Time Clocks DS12885S+ Analog Devices / Maxim Integrated 1: $8.59 55In Stock	Mfr. Part No. DS12885S+ Mouser Part No 700-DS12885S	Analog Devices / Maxim Integrated	Real Time Clock Real-Time Clocks	Datasheet	55In Stock	$8.59 $8.40 $8.22 $8.05 View $7.93 $7.81 $7.69 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-24	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	DS12885S	SMD/SMT	Tube
Real Time Clock Real-Time Clocks DS12885SN+ Analog Devices / Maxim Integrated 1: $16.87 41In Stock	Mfr. Part No. DS12885SN+ Mouser Part No 700-DS12885SN	Analog Devices / Maxim Integrated	Real Time Clock Real-Time Clocks	Datasheet	41In Stock	$16.87 $13.23 $12.25 $11.14 View $10.96 $10.45 $10.32 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-24	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS12885SN	SMD/SMT	Tube
Real Time Clock RTCs with Constant-Voltage Trickle Charg DS12R885S-33+ Analog Devices / Maxim Integrated 1: $7.95 33In Stock	Mfr. Part No. DS12R885S-33+ Mouser Part No 700-DS12R885S-33	Analog Devices / Maxim Integrated	Real Time Clock RTCs with Constant-Voltage Trickle Charg	Datasheet	33In Stock	$7.95 $6.13 $5.68 $5.17 View $4.78 $4.63 $4.41	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-24	Backup Switching	2.97 V	3.63 V	- 40 C	+ 85 C	DS12R885S	SMD/SMT	Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302+ Analog Devices / Maxim Integrated 1: $7.04 577In Stock	Mfr. Part No. DS1302+ Mouser Part No 700-DS1302	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	577In Stock	$7.04 $5.40 $4.93 $4.53 View $4.31 $4.18 $4.13 $4.05	Min.: 1 Mult.: 1	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	PDIP-8	Backup Switching	2 V	5.5 V	0 C	+ 70 C	DS1302	Through Hole	Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302SN+T&R Analog Devices / Maxim Integrated 1: $6.35 937In Stock	Mfr. Part No. DS1302SN+T&R Mouser Part No 700-DS1302SNT&R	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	937In Stock	Cut Tape $6.35 $4.86 $4.48 $4.07 View $3.87 $3.78 $3.76 $3.62 Quote MouseReel Available	Min.: 1 Mult.: 1	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1302SN	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Trickle-Charge Timekeeping Chip DS1302Z+ Analog Devices / Maxim Integrated 1: $6.00 1,991In Stock	Mfr. Part No. DS1302Z+ Mouser Part No 700-DS1302Z	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	1,991In Stock	$6.00 $4.57 $4.21 $3.57 View $3.51 $3.46 $3.43	Min.: 1 Mult.: 1	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1302Z	SMD/SMT	Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302ZN+ Analog Devices / Maxim Integrated 1: $6.46 1,099In Stock	Mfr. Part No. DS1302ZN+ Mouser Part No 700-DS1302ZN	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	1,099In Stock	$6.46 $4.92 $4.53 $4.10 View $3.90 $3.77 $3.73 $3.69	Min.: 1 Mult.: 1	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1302ZN	SMD/SMT	Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302ZN+T&R Analog Devices / Maxim Integrated 1: $6.42 1,430In Stock	Mfr. Part No. DS1302ZN+T&R Mouser Part No 700-DS1302ZNT&R	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	1,430In Stock	Cut Tape $6.42 $4.92 $4.55 $4.14 $4.06 $3.48 MouseReel Available	Min.: 1 Mult.: 1	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1302ZN	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Trickle-Charge Timekeeping Chip DS1302Z+T&R Analog Devices / Maxim Integrated 1: $5.56 1,315In Stock	Mfr. Part No. DS1302Z+T&R Mouser Part No 700-DS1302ZT&R	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	1,315In Stock	Cut Tape $5.56 $4.33 $4.01 $3.66 $3.63 $3.18 MouseReel Available	Min.: 1 Mult.: 1	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2 V	5.5 V	0 C	+ 70 C	DS1302Z	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial Alarm Real-Time Clock DS1305+ Analog Devices / Maxim Integrated 1: $12.12 647In Stock	Mfr. Part No. DS1305+ Mouser Part No 700-DS1305	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	647In Stock	$12.12 $9.58 $8.13 $8.11 View $8.03 $7.55 $7.38 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	0 C	+ 70 C	DS1305	Through Hole	Tube