Real Time Clocks
Browse available Real Time Clocks part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.
For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.
| Photo | Mfr. Part # | Availability | Price | 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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DS1284Q/T&RIC RTC CLK/CALENDAR PAR 28PLCC |
2,594 | - |
|
Datasheet | - | 28-LCC (J-Lead) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 50B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 3.5V | 7mA @ 5V | 0°C ~ 70°C | Surface Mount | - | - | 28-PLCC (11.51x11.51) |
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DS1284Q+T&RIC RTC CLK/CALENDAR PAR 28PLCC |
2,716 | - |
|
Datasheet | - | 28-LCC (J-Lead) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 50B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 3.5V | 7mA @ 5V | 0°C ~ 70°C | Surface Mount | - | - | 28-PLCC (11.51x11.51) |
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RX8901CE XS B0BIC RTC CLK/CALENDAR I2C 10SMD |
4,797 | - |
|
Datasheet | - | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
RX8901CE XS A0BIC RTC CLK/CALENDAR I2C 10SMD |
2,837 | - |
|
Datasheet | - | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
RX4901CE XS C0BIC RTC CLK/CALENDAR SPI 10SMD |
2,795 | - |
|
Datasheet | - | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
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RX4901CE XS D0BIC RTC CLK/CALENDAR SPI 10SMD |
4,464 | - |
|
Datasheet | - | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
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RX4901CE XS B0BIC RTC CLK/CALENDAR SPI 10SMD |
4,935 | - |
|
Datasheet | - | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
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RX4901CE XS A0BIC RTC CLK/CALENDAR SPI 10SMD |
2,285 | - |
|
Datasheet | - | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
RX-8025NBAC3 PURE SNIC RTC CLK/CALENDAR I2C 22SON |
3,619 | - |
|
Datasheet | RX-8025NB | 22-SMD, 20 Leads, Flat Leads | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm | - | HH:MM:SS | YY-MM-DD | I2C | 1.7V ~ 5.5V | 1.15V ~ 5.5V | 1.2µA ~ 1.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON (6.3x4.8) |
|
DS1500WENIC RTC CLK/CALENDAR PAR 32TSOP |
2,240 | - |
|
Datasheet | - | 32-LFSOP (0.724", 18.40mm Width) | Bag | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | 256B | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 3V ~ 3.6V | 2.5V ~ 3.7V | 4mA @ 3V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 32-TSOP |
|
|
DS1500YENIC RTC CLK/CALENDAR PAR 32TSOP |
3,344 | - |
|
Datasheet | - | 32-LFSOP (0.724", 18.40mm Width) | Bag | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | 256B | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 5mA @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 32-TSOP |
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DS1284QNIC RTC CLK/CALENDAR PAR 28PLCC |
1,002 | - |
|
Datasheet | - | 28-LCC (J-Lead) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 50B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 3.5V | 7mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 28-PLCC (11.51x11.51) |
|
RX-4035SAACB PURE SNIC RTC CLK/CALENDAR SPI 14SOP |
1,980 | - |
|
Datasheet | RX-4035SA | 14-SOIC (0.197", 5.00mm Width) | Bulk | Active | Not Verified | Clock/Calendar | Alarm | - | - | - | SPI | 2.4V ~ 5.5V | 1V ~ 5.5V | 2.5µA @ 3V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP |
|
DS1689SN+IC RTC CLK/CALENDAR PAR 28SOIC |
1,891 | - |
|
Datasheet | - | 28-SOIC (0.337", 8.56mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | NVSRAM | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.3V, 4.5V ~ 5.5V | 2.5V ~ 3.7V | 2mA @ 3V, 3mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 28-SOIC |
|
DS1673E-3+T&RIC RTC SYST CTRLR SER 20TSSOP |
2,518 | - |
|
Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | 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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DS1284QN/T&RIC RTC CLK/CALENDAR PAR 28PLCC |
1,918 | - |
|
Datasheet | - | 28-LCC (J-Lead) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 50B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 3.5V | 7mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 28-PLCC (11.51x11.51) |
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DS1284QN+T&RIC RTC CLK/CALENDAR PAR 28PLCC |
1,035 | - |
|
Datasheet | - | 28-LCC (J-Lead) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 50B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 3.5V | 7mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 28-PLCC (11.51x11.51) |
|
DS1343D-3+T&RIC RTC CLK/CALENDAR SPI 14TDFN |
2,423 | - |
|
Datasheet | - | 14-WFDFN Exposed Pad | 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 | 2.7V ~ 5.5V | 1.3V ~ 5.5V | - | -40°C ~ 85°C | Surface Mount | - | - | 14-TDFN (3x3) |
|
|
V3025SO28A+IC RTC CLOCK/CALENDAR 28SOIC |
4,011 | - |
|
Datasheet | - | 28-SOIC (0.295", 7.50mm Width) | Tube | Last Time Buy | Not Verified | Clock/Calendar | Alarm, Leap Year, RAM | 8B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | - | 2V ~ 5.5V | - | 15µA @ 5.5V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 28-SOIC |
|
DS1678+IC RTC TIME EVENT REC I2C 8DIP |
3,785 | - |
|
Datasheet | - | 8-DIP (0.300", 7.62mm) | Tube | Active | Not Verified | Time Event Recorder | Alarm, Leap Year, NVSRAM, Y2K | 32B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 4.5V ~ 5.5V | 2.6V ~ 3.5V | - | -40°C ~ 85°C | Through Hole | - | - | 8-PDIP |
Real Time Clocks FAQ
Common questions about selecting, comparing and sourcing Real Time Clocks components through Winsun (HK) Electronics.
What should I check when selecting Real Time Clocks components?
Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.
Can Winsun help source specific Real Time Clocks part numbers?
Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.
Do you support shortage, obsolete or hard-to-find Real Time Clocks parts?
Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.
How do I request a quote for Real Time Clocks components?
Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.
