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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DS1678S+T&RIC RTC TIME EVENT REC I2C 8SOIC |
1,188 | - |
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Datasheet | - | 8-SOIC (0.209", 5.30mm Width) | Tape & Reel (TR) | 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 | Surface Mount | - | - | 8-SOIC |
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AB-RTCMC-32.768KHZ-EOA9-S3-HATIC RTC CLK/CALENDAR SPI MODULE |
4,801 | - |
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Datasheet | - | 10-SMD Module | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, TCXO/Crystal, Trickle-Charger | - | HH:MM:SS:hh | YY-MM-DD-dd | SPI | 1.4V ~ 5.5V, 2.1V ~ 5.5V | 1.4V ~ 5.5V | 4.6µA ~ 5.5µA @ 1.4V ~ 5V | -40°C ~ 125°C | Surface Mount | - | - | Module |
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AB-RTCMC-32.768KHZ-EOZ9-S3-HATIC RTC CLK/CALENDAR I2C MODULE |
3,443 | - |
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Datasheet | - | 10-SMD Module | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, TCXO/Crystal, Trickle-Charger | - | HH:MM:SS:hh | YY-MM-DD-dd | I2C | 1.4V ~ 5.5V, 2.1V ~ 5.5V | 1.4V ~ 5.5V | 4.6µA ~ 5.5µA @ 1.4V ~ 5V | -40°C ~ 125°C | Surface Mount | - | - | Module |
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M41ST87YMX6TRIC RTC CLOCK/CALENDAR I2C 28SO |
1,811 | - |
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Datasheet | - | 28-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer | 128B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 4.5V ~ 5.5V | 2.5V ~ 5.5V | 1mA @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 28-SO |
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DS17285SN-5IC RTC CLK/CALENDAR PAR 24SOIC |
1,728 | - |
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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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DS17285SN-3IC RTC CLK/CALENDAR PAR 24SOIC |
2,208 | - |
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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 | 2mA @ 2.7V ~ 3.7V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOIC |
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DS17285E-3IC RTC CLK/CALENDAR PAR 28TSOP |
4,855 | - |
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Datasheet | - | 28-TSSOP (0.465", 11.80mm Width) | Bag | 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 | - | - | 28-TSOP |
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M41ST87YMX6IC RTC CLOCK/CALENDAR I2C 28SO |
4,653 | - |
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Datasheet | - | 28-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer | 128B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 4.5V ~ 5.5V | 2.5V ~ 5.5V | 1mA @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 28-SO |
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RX-4571NB:BIC RTC CLK/CALENDAR SER 22SON |
3,701 | - |
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Datasheet | RX-4571NB | 22-LFDFN | Strip | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | - | - | 3-Wire Serial | 1.6V ~ 5.5V | - | 0.95µA ~ 1µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON (6.3x4.8) |
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RX-4571NB:BX PURE SNIC RTC CLK/CALENDAR SER 22SON |
3,547 | - |
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Datasheet | RX-4571NB | 22-SMD, 20 Leads, Flat Leads | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | - | - | 3-Wire Serial | 1.6V ~ 5.5V | - | 0.95µA ~ 1µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON (6.3x4.8) |
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RX-4801SA:UB3 PURE SNIC RTC CLK/CALENDAR SPI 14SOP |
1,632 | - |
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Datasheet | RX-4801SA | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | SPI | 1.6V ~ 5.5V | - | 2.1µA ~ 3.4µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP |
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DS12885T/T&RIC RTC CLK/CALENDAR PAR 32TQFP |
4,517 | - |
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Datasheet | - | 32-TQFP | Tape & Reel (TR) | 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 | - | - | 32-TQFP (7x7) |
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DS1558WIC RTC CLK/CALENDAR PAR 48LQFP |
4,691 | - |
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Datasheet | - | 48-LQFP | Bag | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Watchdog Timer, Y2K | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 2.5V ~ 3.7V | 2mA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 48-LQFP (7x7) |
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DS1558YIC RTC CLK/CALENDAR PAR 48LQFP |
4,905 | - |
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Datasheet | - | 48-LQFP | Bag | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Watchdog Timer, Y2K | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 6mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 48-LQFP (7x7) |
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M41ST87WMX6IC RTC CLOCK/CALENDAR I2C 28SO |
1,452 | - |
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Datasheet | - | 28-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer | 128B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 3.6V | 2.5V ~ 3.6V | 0.5mA @ 2.7V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 28-SO |
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DS1689SN/T&RIC RTC CLK/CALENDAR PAR 28SOIC |
3,546 | - |
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Datasheet | - | 28-SOIC (0.337", 8.56mm Width) | Tape & Reel (TR) | 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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DS1689SN+T&RIC RTC CLK/CALENDAR PAR 28SOIC |
4,374 | - |
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Datasheet | - | 28-SOIC (0.337", 8.56mm Width) | Tape & Reel (TR) | 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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BQ4802YDWRG4IC RTC CLK/CALENDAR PAR 28SOIC |
2,234 | - |
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Datasheet | - | 28-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 4V | 1.5mA (Typ) @ 4.5 V ~ 5.5 V | 0°C ~ 70°C | Surface Mount | - | - | 28-SOIC |
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RTC-4574JE:B3 ROHSIC RTC CLK/CALENDAR SER 20VSOJ |
1,048 | - |
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Datasheet | RTC-4574JE | 20-LSSOJ (0.213", 5.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 3-Wire Serial | 1.6V ~ 5.5V | - | 1µA ~ 2µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 20-VSOJ |
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RTC-4574NB:B3 ROHSIC RTC CLK/CALENDAR SER 22SON |
1,538 | - |
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Datasheet | RTC-4574NB | 22-LFDFN | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 3-Wire Serial | 1.6V ~ 5.5V | - | 1µA ~ 2µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON (6.3x4.8) |
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.
