Real Time Clocks
Browse available Real Time Clocks components by manufacturer and part number. Review stock status, datasheets and key technical parameters to compare suitable options for design, maintenance, replacement or purchasing.
If you already have a target MPN or BOM, send it to EGOO with the required quantity. Our sourcing team can check availability, lead time and quotation options, including hard-to-find and obsolete parts.
| 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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DS1689SNIC RTC CLK/CALENDAR PAR 28SOIC |
4,970 | - |
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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 |
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RX-8581NB:B3 PURE SNIC RTC CLK/CALENDAR I2C 22SON |
2,112 | - |
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Datasheet | RX-8581NB | 22-LFDFN | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.8µA ~ 1.2µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON (6.3x4.8) |
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RX-8581NB:B3IC RTC CLK/CALENDAR I2C 22SON |
2,648 | - |
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Datasheet | RX-8581NB | 22-SMD, 20 Leads, Flat Leads | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.8µA ~ 1.2µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON |
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DS1338C-18#IC RTC CLK/CALENDAR I2C 16SOIC |
1,904 | - |
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Datasheet | - | 16-SOIC (0.295", 7.50mm 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 | 1.71V ~ 5.5V | 1.3V ~ 3.7V | 100µA @ 1.89V | -40°C ~ 85°C | Surface Mount | - | - | 16-SOIC |
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RX-8035SA:AC3 PURE SNIC RTC TIME EVENT REC I2C 14SOP |
4,579 | - |
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Datasheet | RX-8035SA | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Time Event Recorder | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.4V ~ 5.5V | 1V ~ 5.5V | 2.5µA @ 3V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP |
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ISL1221IUZ-TIC RTC EVENT REC I2C 10MSOP |
4,668 | - |
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Datasheet | - | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Time Event Recorder | Alarm, Leap Year, SRAM | 2B | 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 | - | - | 10-MSOP |
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DS1685S-5+T&RIC RTC CLK/CALENDAR PAR 24SOIC |
4,181 | - |
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Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 3mA @ 5V | 0°C ~ 70°C | Surface Mount | - | - | 24-SOIC |
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M41ST85WMH6EIC RTC CLK/CALENDAR I2C 28SOH |
2,171 | - |
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Datasheet | - | 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer | 44B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 3.6V | 2.5V ~ 3.5V | 0.5mA @ 2.7V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 28-SOH |
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DS1685Q-5+T&RIC RTC CLK/CALENDAR PAR 28PLCC |
1,310 | - |
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Datasheet | - | 28-LCC (J-Lead) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 3mA @ 5V | 0°C ~ 70°C | Surface Mount | - | - | 28-PLCC (11.51x11.51) |
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A3024SO20A+IC RTC CLOCK/CALENDAR 20SO |
3,037 | - |
|
Datasheet | - | 20-SOIC (0.295", 7.50mm Width) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, RAM | 8B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | - | 2V ~ 5.5V | - | 10µA ~ 15µA @ 3V ~ 5V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 20-SO |
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M41T62LC6FIC RTC CLK/CALENDAR I2C 8LCC |
2,255 | - |
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Datasheet | Timekeeper® | 8-LCC | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Watchdog Timer | - | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.3V ~ 4.4V | - | 0.7µA ~ 0.95µA @ 1.3V ~ 4.4V | -40°C ~ 85°C | Surface Mount | - | - | 8-LCC (1.5x3.2) |
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DS17485-3IC RTC CLK/CALENDAR PAR 24DIP |
1,168 | - |
|
Datasheet | - | 24-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 4KB | 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 | Through Hole | - | - | 24-PDIP |
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RX8804CE XBBIC RTC CLK/CALENDAR I2C 10SMD |
2,072 | - |
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Datasheet | RX8804CE | 10-SMD, No Lead | Bulk | Active | Not Verified | Clock/Calendar | Alarm, Watchdog Timer | - | HH:MM:SS | YY-MM-DD | I2C | 1.6V ~ 5.5V | 1.5V ~ 5.5V | 1.5µA ~ 1.6µA @ 3V ~ 5V | -40°C ~ 105°C (TA) | Surface Mount | - | - | 10-SMD |
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DS12885TNIC RTC CLK/CALENDAR PAR 32TQFP |
1,857 | - |
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Datasheet | - | 32-TQFP | Tray | 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 | -40°C ~ 85°C | Surface Mount | - | - | 32-TQFP (7x7) |
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DS3232MZ/V+TIC RTC CLK/CALENDAR I2C 8SOIC |
2,072 | - |
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Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Not For New Designs | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 236B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.3V ~ 4.5V | 2.3V ~ 4.5V | 175µA @ 2.3V ~ 4.5V | -40°C ~ 85°C | Surface Mount | Automotive | AEC-Q100 | 8-SOIC |
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RV-3129-C3-32.768KHZ-OPTION-A-TA-QCIC RTC CLK/CALENDAR I2C 10SON |
3,787 | - |
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Datasheet | C3 | 10-VCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger | 2B, 8B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.3V ~ 5.5V | - | 1µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SON (3.7x2.5) |
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RV-3149-C3-32.768KHZ-OPTION-A-TA-QCIC RTC CLK/CALENDAR SPI 10SON |
3,719 | - |
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Datasheet | C3 | 10-VCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger | 2B, 8B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI, 4-Wire Serial | 1.3V ~ 5.5V | - | 1µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SON (3.7x2.5) |
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DS1501WEN/T&RIC RTC CLK/CALENDAR PAR 28TSOP |
2,236 | - |
|
Datasheet | - | 28-TSSOP (0.465", 11.80mm Width) | Tape & Reel (TR) | 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 | - | - | 28-TSOP |
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MAX6909EO33+IC RTC CLK/CAL/SUPER I2C 20QSOP |
3,023 | - |
|
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 | 3V ~ 3.6V | - | - | - | Surface Mount | - | - | 20-QSOP |
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MAX6916EO33+IC RTC CLK/CAL/SUPER SPI 20QSOP |
3,408 | - |
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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 ~ 3.6V | - | - | - | Surface Mount | - | - | 20-QSOP |
Real Time Clocks FAQ
What Real Time Clocks components can I source from EGOO?
You can browse available Real Time Clocks product families, manufacturers and part numbers on this page, then review stock, datasheets and technical information for suitable options.
Can EGOO help with hard-to-source or obsolete Real Time Clocks parts?
Yes. EGOO provides sourcing support for shortage, obsolete and hard-to-find electronic components. Send us the target manufacturer part number and quantity for checking.
Does EGOO support BOM and small-batch sourcing?
Yes. We support BOM sourcing, prototype requirements and small-batch supply, together with stock, lead-time and quotation assistance.
How do I request pricing and availability?
Submit the manufacturer part number, required quantity and any package, date-code or delivery requirements through the RFQ form, and our team will review available sourcing options.
