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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	Time Keeping Current	Packaging
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	1.2 uA	Tube
Real Time Clock 1Kb EE 64B SRAM WD TED EUI-48 MCP795W11-I/ST Microchip Technology 1: $2.57 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	$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	700 nA	Tube
Real Time Clock 2Kb EE 64B SRAM WD TED ID MCP795W20-I/SL Microchip Technology 1: $2.52 298In 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	298In 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	700 nA	Tube
Real Time Clock 2Kb EE 64B SRAM WD TED ID MCP795W20-I/ST Microchip Technology 1: $2.57 166In 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	166In 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	700 nA	Tube
Real Time Clock 2Kb EE 64B SRAM WD TED EUI-48 MCP795W21-I/SL Microchip Technology 1: $2.64 269In 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	269In 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	700 nA	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	700 nA	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	700 nA	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 A 595-B Q4802YDWR A 595-BQ4 A 595-BQ4802YDWR BQ4802YDW Texas Instruments 1: $42.36 7In Stock End of Life	Mfr. Part No. BQ4802YDW Mouser Part No 595-BQ4802YDW End of Life	Texas Instruments	Real Time Clock Parallel RTC A 595-B Q4802YDWR A 595-BQ4 A 595-BQ4802YDWR	Datasheet	7In Stock	$42.36 $33.86 $31.74 $29.42 View $28.30 $27.64	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-28	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	BQ4802Y	SMD/SMT	300 nA	Tube
Real Time Clock Parallel RTC BQ4802YPW Texas Instruments 1: $19.72 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	$19.72 $15.45 $14.38 $13.21 View $13.07 $12.31 $12.02 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	300 nA	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												70 nA	Reel, Cut Tape, MouseReel
Real Time Clock 256k NV SRAM with Phantom Clock DS1244Y-70+ Analog Devices / Maxim Integrated 1: $90.25 38In 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	38In 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	5 mA	Tube
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	5 mA	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	5 mA	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	500 nA	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	140 uA	Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302+ Analog Devices / Maxim Integrated 1: $9.57 462In 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	462In 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	450 nA	Tube
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	450 nA	Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302ZN+T&R Analog Devices / Maxim Integrated 1: $8.73 1,409In 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	1,409In 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	450 nA	Reel, Cut Tape, MouseReel
Real Time Clock Trickle-Charge Timekeeping Chip DS1302Z+T&R Analog Devices / Maxim Integrated 1: $7.56 1,113In 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	1,113In Stock	Cut Tape $7.56 $5.89 $5.45 $4.98 $4.94 $4.32 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	450 nA	Reel, Cut Tape, MouseReel
Real Time Clock Serial Alarm Real-Time Clock DS1305+ Analog Devices / Maxim Integrated 1: $16.48 645In Stock	Mfr. Part No. DS1305+ Mouser Part No 700-DS1305	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	645In Stock	$16.48 $13.03 $11.06 $11.03 View $10.92 $10.27 $10.04 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	1 uA	Tube
Real Time Clock Serial Alarm Real-Time Clock DS1305EN+ Analog Devices / Maxim Integrated 1: $14.40 1,778In Stock	Mfr. Part No. DS1305EN+ Mouser Part No 700-DS1305EN	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	1,778In Stock	$14.40 $11.25 $9.96 $9.57 View $9.08 $8.91 $8.70 Quote	Min.: 1 Mult.: 1	Serial 3-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	TSSOP-20	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1305EN	SMD/SMT	1 uA	Tube
Real Time Clock Serial Alarm Real-Time Clock DS1305EN+T&R Analog Devices / Maxim Integrated 1: $13.57 780In Stock	Mfr. Part No. DS1305EN+T&R Mouser Part No 700-DS1305ENT&R	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	780In Stock	Cut Tape $13.57 $11.25 $10.46 $9.59 View $9.10 $8.92 $8.72 $8.24 MouseReel Available	Min.: 1 Mult.: 1	Serial 3-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	TSSOP-20	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1305EN	SMD/SMT	1 uA	Reel, Cut Tape, MouseReel
Real Time Clock Serial Alarm Real-Time Clock DS1306E+ Analog Devices / Maxim Integrated 1: $10.69 812In Stock	Mfr. Part No. DS1306E+ Mouser Part No 700-DS1306E	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	812In Stock	$10.69 $9.38 $8.70 $7.94 View $7.58 $7.37 $7.17 Quote	Min.: 1 Mult.: 1	Serial 3-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	TSSOP-20	Backup Switching	2 V	5.5 V	0 C	+ 70 C	DS1306E	SMD/SMT	81 uA	Tube
Real Time Clock Serial Alarm Real-Time Clock DS1306EN+ Analog Devices / Maxim Integrated 1: $13.18 517In Stock	Mfr. Part No. DS1306EN+ Mouser Part No 700-DS1306EN	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	517In Stock	$13.18 $10.20 $9.34 $8.64 View $8.26 $8.01 $7.79 Quote	Min.: 1 Mult.: 1	Serial 3-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	TSSOP-20	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1306EN	SMD/SMT	81 uA	Tube