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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DS1672S-2+IC RTC BINARY COUNTER I2C 8SOIC |
4,366 |
|
Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tube | Active | Not Verified | Binary Counter | Trickle-Charger | - | Binary | Binary | I2C, 2-Wire Serial | 1.8V ~ 2.2V | 1.3V ~ 3.63V | 500µA @ 2.2V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
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ISL12058IUZIC RTC CLK/CALENDAR I2C 8MSOP |
2,000 |
|
Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 3.6V | - | 0.65µA @ 1.8V | -40°C ~ 85°C | Surface Mount | - | - | 8-MSOP |
|
1337AGDCGIIC RTC CLK/CALENDAR I2C 8SOIC |
409 |
|
Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.3µA @ 1.3V ~ 1.8V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
|
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1338-31DCGIIC RTC CLK/CALENDAR I2C 8SOIC |
253 |
|
Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tube | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 3.3V ~ 5.5V | 1.3V ~ 3.7V | 5µA @ 3.63V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
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RX8900CE:UB6IC RTC CLK/CALENDAR I2C 10SMD |
1,900 |
|
Datasheet | RX8900CE | 10-SMD, No Lead | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C | 2.5V ~ 5.5V | 1.6V ~ 5.5V | 1.4µA ~ 1.5µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 10-SMD |
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RX8111CE A3IC RTC CLK/CALENDAR I2C 10SMD |
514 |
|
Datasheet | RX8111CE | 10-SMD, No Lead | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, RAM | - | HH:MM:SS | YY-MM-DD | I2C | 1.6V ~ 5.5V | - | 3µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SMD |
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DS1344E-3+IC RTC CLK/CALENDAR SPI 20TSSOP |
1,819 |
|
Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tube | Active | 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 | 2.7V ~ 5.5V | 1.3V ~ 5.5V | - | -40°C ~ 85°C | Surface Mount | - | - | 20-TSSOP |
|
ISL12008IB8Z-TIC RTC CLK/CALENDAR I2C 8SOIC |
1,570 |
|
Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS:hh (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-SOIC |
|
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RX8111CE B3IC RTC CLK/CALENDAR I2C 10SMD |
176 |
|
Datasheet | RX8111CE | 10-SMD, No Lead | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, RAM | - | HH:MM:SS | YY-MM-DD | I2C | 1.6V ~ 5.5V | - | 3µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SMD |
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RX-4045SAAA0 PURE SNIC RTC CLK/CALENDAR SPI 14SOP |
844 |
|
Datasheet | RX-4045SA | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 1.7V ~ 5.5V | - | 1.2µA ~ 1.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP |
|
DS1341T+T&RIC RTC CLK/CALENDAR I2C 8TDFN |
2,154 |
|
Datasheet | - | 8-WDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.5µA ~ 0.6µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 8-TDFN (3x3) |
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DS1672S-3+IC RTC BINARY COUNTER I2C 8SOIC |
200 |
|
Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tube | Active | Not Verified | Binary Counter | Trickle-Charger | - | Binary | Binary | I2C, 2-Wire Serial | 2.7V ~ 3.3V | 1.3V ~ 3.63V | 500µA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
|
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RX-8025SA:AA0IC TRC CLK/CALENDAR |
885 |
|
Datasheet | - | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm | - | HH:MM:SS | YY-MM-DD-dd | I2C | 1.7V ~ 5.5V | - | 1.2µA ~ 1.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP |
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DS1342T+T&RIC RTC CLK/CALENDAR I2C 8TDFN |
2,500 |
|
Datasheet | - | 8-WDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.6µA ~ 0.7µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 8-TDFN (3x3) |
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DS1393U-33+IC RTC CLK/CALENDAR SER 10UMAX |
192 |
|
Datasheet | - | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Trickle-Charger | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | 3-Wire Serial | 2.97V ~ 5.5V | 1.3V ~ 5.5V | 175µA @ 2.97V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 10-uMAX/uSOP |
|
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DS1672S-3+T&RIC RTC BINARY COUNTER I2C 8SOIC |
2,391 |
|
Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | Binary Counter | Trickle-Charger | - | Binary | Binary | I2C, 2-Wire Serial | 2.7V ~ 3.3V | 1.3V ~ 3.63V | 500µA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
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DS17285S-3+IC RTC CLK/CALENDAR PAR 24SOIC |
3,000 |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tube | 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 | 2.5V ~ 3.7V | 2mA @ 2.7V ~ 3.7V | 0°C ~ 70°C | Surface Mount | - | - | 24-SOIC |
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RX6110SA:B3 PURE SNIC RTC CLK/CALENDAR I2C 14SOP |
462 |
|
Datasheet | RX6110SA | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, RAM | 16B | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C, SPI | 1.6V ~ 5.5V | 1.1V ~ 5.5V | 0.25µA ~ 0.27µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP |
|
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DS1374U-3+T&RIC RTC BINARY COUNTER I2C 10UMAX |
2,970 |
|
Datasheet | - | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Binary Counter | Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer | - | Binary | Binary | I2C, 2-Wire Serial | 2.7V ~ 3.3V | 1.3V ~ 3.7V | 125µA @ 2.7V ~ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 10-uMAX/uSOP |
|
DS1338U-18+T&RIC RTC CLOCK/CALENDAR I2C 8UMAX |
2,674 |
|
Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.71V ~ 5.5V | 1.3V ~ 3.7V | 100µA @ 1.89V | -40°C ~ 85°C | Surface Mount | - | - | 8-uMAX/uSOP |
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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