Real Time Clocks
Explore Real Time Clocks parts from multiple manufacturers, with model information, availability, datasheets and technical specifications for engineering and purchasing.
For parts that are not shown in the list, send the manufacturer part number, quantity or BOM to JIEXIN Electronics. Our team can assist with availability checks and quotation support.
| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Series | Package/Case | Packaging | Product Status | Programmable | Type | Features | Memory Size | Time Format | Date Format | Interface | Voltage - Supply | Voltage - Supply, Battery | Current - Timekeeping (Max) | Operating Temperature | Mounting Type | Grade | Qualification | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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DS12885SIC RTC CLK/CALENDAR PAR 24SOIC |
3,714 |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 4V | 15mA @ 4.5V ~ 5.5V | 0°C ~ 70°C | Surface Mount | - | - | 24-SOIC |
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ISL1218IUZIC RTC CLK/CALENDAR I2C 8MSOP |
4,025 |
|
Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, SRAM | 8B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 4µA ~ 6µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 8-MSOP |
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DS14285+IC RTC CLK/CALENDAR PAR 24DIP |
4,595 |
|
Datasheet | - | 24-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.6V | 0.5µA @ 4.5V ~ 5.5V | 0°C ~ 70°C | Through Hole | - | - | 24-PDIP |
|
MAX31329ELB+TINTEGRATED RC17 W/ QST CRYSTAL |
1,656 |
|
Datasheet | - | 10-LLGA | Tape & Reel (TR) | Last Time Buy | - | Clock/Calendar | Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger | 64B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C | 1.6V ~ 5.5V | 1.6V ~ 5.5V | 0.5µA ~ 0.7µA @ 1.6V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 10-LGA (5x5) |
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DS1673E-3/T&RIC RTC SYST CTRLR SER 20TSSOP |
2,831 |
|
Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Portable System Controller | Alarm, Leap Year, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3-Wire Serial | 2.7V ~ 3.3V | 2.5V ~ 3.7V | 100µA @ 3V | 0°C ~ 70°C | Surface Mount | - | - | 20-TSSOP |
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DS14285Q+IC RTC CLK/CALENDAR PAR 28PLCC |
3,372 |
|
Datasheet | - | 28-LCC (J-Lead) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.6V | 0.5µA @ 4.5V ~ 5.5V | 0°C ~ 70°C | Surface Mount | - | - | 28-PLCC (11.51x11.51) |
|
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DS17285S-5IC RTC CLK/CALENDAR PAR 24SOIC |
3,369 |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2KB | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 3mA @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOIC |
|
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DS17285S-3IC RTC 3V 2K NV RAM 24-SOIC |
180 |
|
Datasheet | * | 24-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2KB | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | - | - | Surface Mount | - | - | 24-SOIC |
|
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DS17285S-3/T&RIC RTC CLK/CALENDAR PAR 24SOIC |
1,730 |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2KB | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 2.7V ~ 3.7V | 0°C ~ 70°C | Surface Mount | - | - | 24-SOIC |
|
DS17285S-3/TRIC RTC CLK/CALENDAR PAR 24SOIC |
1,000 |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Bulk | Active | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2KB | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V, 4.5V ~ 5.5V | 2.5V ~ 3.7V | 2mA @ 2.7V ~ 3.7V | 0°C ~ 70°C (TA) | Surface Mount | - | - | 24-SOIC |
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ISL12026AIVZIC RTC CLK/CALENDAR I2C 8TSSOP |
950 |
|
Datasheet | - | 8-TSSOP (0.173", 4.40mm Width) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-TSSOP |
|
BQ4285P-SB2IC RTC CLK/CALENDAR PAR 24DIP |
1,541 |
|
Datasheet | - | 24-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 4V | - | 0°C ~ 70°C | Through Hole | - | - | 24-PDIP |
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DS14285N+IC RTC CLK/CALENDAR PAR 24DIP |
1,517 |
|
Datasheet | - | 24-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.6V | 0.5µA @ 4.5V ~ 5.5V | -40°C ~ 85°C | Through Hole | - | - | 24-PDIP |
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DS17285S-3NTIC RTC CLK/CALENDAR PAR 24SOIC |
1,964 |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2KB | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 2.7V ~ 3.7V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOIC |
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DS17285S-5+TRDS17285 REAL-TIME CLOCK |
580 |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Bulk | Active | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2KB | HH:MM:SS (12/24 hr) | YY-MM-DD | Parallel | 2.7V ~ 3.7V, 4.5V ~ 5.5V | 2.5V ~ 3.7V | 2mA @ 2.7V ~ 3.7V | 0°C ~ 70°C (TA) | Surface Mount | - | - | 24-SOIC |
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MAX6917EO30+IC RTC CLK/CAL/SUPER I2C 20QSOP |
4,266 |
|
Datasheet | - | 20-SSOP (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar/Supervisor | - | 96B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 3.3V | - | - | -40°C ~ 85°C | Surface Mount | - | - | 20-QSOP |
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MAX6916EO30+IC RTC CLK/CAL/SUPER SPI 20QSOP |
2,442 |
|
Datasheet | - | 20-SSOP (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar/Supervisor | - | 96B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI, 3-Wire Serial | 3V | - | - | - | Surface Mount | - | - | 20-QSOP |
|
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MAX6909EO30+IC RTC CLK/CAL/SUPER I2C 20QSOP |
2,411 |
|
Datasheet | - | 20-SSOP (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar/Supervisor | - | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 3.3V | - | - | - | Surface Mount | - | - | 20-QSOP |
|
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DS1344E-18+T&RIC RTC CLK/CALENDAR SPI 20TSSOP |
2,156 |
|
Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger | 96B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 1.71V ~ 5.5V | 1.3V ~ 5.5V | - | -40°C ~ 85°C | Surface Mount | - | - | 20-TSSOP |
|
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MAX6910EO30+IC RTC CLK/CAL/SUPER I2C 20QSOP |
3,730 |
|
Datasheet | - | 20-SSOP (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar/Supervisor | - | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 3.3V | - | - | - | Surface Mount | - | - | 20-QSOP |
Frequently Asked Questions
What are Real Time Clocks components used for?
Real Time Clocks components are used in a wide range of electronic equipment and systems. Their exact function depends on the device, circuit design and technical requirements of the application.
How do I choose the right Real Time Clocks part?
Compare the manufacturer part number, key specifications, package type, operating conditions, availability and datasheet information. For replacement projects, always verify the critical electrical and mechanical parameters before selecting an alternative.
Can JIEXIN Electronics help source obsolete or hard-to-find Real Time Clocks parts?
Yes. Send us the required manufacturer part number, quantity or BOM. Our sourcing team can help check stock availability, lead time, alternative sourcing options and quotation details.
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