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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 (SGD) 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 I2C GP RTCC 1Kb EE 64B SRAM EUI-48 MCP79411T-I/MNY Microchip Technology 1: $1.78 18In Stock 13,200On Order	Mfr. Part No. MCP79411T-I/MNY Mouser Part No 579-MCP79411TIMNY	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	18In Stock 13,200On Order On Order Ship Dates Mfr. No: MCP79411T-I/MNY Stock: 18 Can Dispatch Immediately On Order: 6,600 Expected 5/1/2027 6,600 Expected 18/1/2027 Factory Lead Time: 12 Weeks	Cut Tape $1.78 Reel $1.48 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	I2C	YY-MM-DD-dd	HH:MM:SS (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 SPI GP RTCC 1Kb EE 64B SRAM EUI-48 MCP79511-I/MS Microchip Technology 1: $1.89 269In Stock 300Expected 12/1/2027	Mfr. Part No. MCP79511-I/MS Mouser Part No 579-MCP79511-I/MS	Microchip Technology	Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp795xx	Datasheet	269In Stock 300Expected 12/1/2027	$1.89 $1.74 $1.70	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	MSOP-10	Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C		SMD/SMT	Tube
Real Time Clock 1Kb EE 64B SRAM WD TED ID MCP795W10-I/SL Microchip Technology 1: $2.38 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	$2.38 $2.22 $2.15	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: $2.57 197In 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	197In Stock	$2.57 $2.38 $2.33	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: $2.52 308In 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	308In Stock	$2.52 $2.33 $2.26	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: $2.57 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	$2.57 $2.38 $2.33	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: $2.64 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	$2.64 $2.45 $2.39	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: $2.69 96In 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	96In Stock	$2.69 $2.50 $2.43	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: $2.64 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	$2.64 $2.45 $2.39	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: $25.66 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	$25.66 $20.37 $19.04 $17.58 View $16.69 $16.50 Quote	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: $17.26 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	$17.26 $13.53 $12.50 $12.08 View $11.97 $11.61 $11.44 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: $5.05 3,499In 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	3,499In Stock	Cut Tape $5.05 $3.78 $3.47 $3.11 Reel $2.91 View $2.95 $2.91 $2.57 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: $90.25 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	$90.25 $74.54 $70.61 $69.71	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: $62.87 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	$62.87 $61.49 $60.15 $58.94 View $58.04 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: $100.00 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	$100.00 $82.65 $78.21 $74.57	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: $124.43 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	$124.43 $103.62 $97.54 $89.09 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: $21.07 21In Stock	Mfr. Part No. DS12885N+ Mouser Part No 700-DS12885N	Analog Devices / Maxim Integrated	Real Time Clock Real-Time Clocks	Datasheet	21In Stock	$21.07 $16.50 $15.34 $13.52 View $13.41 $12.68 $12.43 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: $11.68 55In Stock	Mfr. Part No. DS12885S+ Mouser Part No 700-DS12885S	Analog Devices / Maxim Integrated	Real Time Clock Real-Time Clocks	Datasheet	55In Stock	$11.68 $11.42 $11.18 $10.95 View $10.78 $10.62 $10.46 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: $22.94 41In Stock	Mfr. Part No. DS12885SN+ Mouser Part No 700-DS12885SN	Analog Devices / Maxim Integrated	Real Time Clock Real-Time Clocks	Datasheet	41In Stock	$22.94 $17.99 $16.66 $15.15 View $14.91 $14.21 $14.04 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: $10.81 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	$10.81 $8.34 $7.72 $7.03 View $6.50 $6.30 $6.00	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: $9.57 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	$9.57 $7.34 $6.70 $6.16 View $5.86 $5.68 $5.62 $5.51	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: $8.64 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 $8.64 $6.61 $6.09 $5.54 View $5.26 $5.14 $5.11 $4.92 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: $8.16 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	$8.16 $6.22 $5.73 $4.86 View $4.77 $4.71 $4.66	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: $8.79 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	$8.79 $6.69 $6.16 $5.58 View $5.30 $5.13 $5.07 $5.02	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: $8.73 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 $8.73 $6.69 $6.19 $5.63 $5.52 $4.73 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