Real Time Clocks
Compare the current Real Time Clocks Clock/Timing selection by manufacturer, stock status, datasheet and technical parameters. Use these details to narrow the list to parts that match your design, maintenance or purchasing requirements.
For a specific MPN, package, electrical rating or quantity requirement, send the details to EGOO. We can help confirm availability, quotation and alternative sourcing options.
| 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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DS1557P-70INDIC RTC CLK/CALENDAR PAR 34PCM |
3,493 | - |
|
Datasheet | - | 34-PowerCap™ Module | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 512KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 3V | 6mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 34-PowerCap Module |
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DS1557P-70IND+IC RTC CLK/CALENDAR PAR 34PCM |
3,803 | - |
|
Datasheet | - | 34-PowerCap™ Module | Tray | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 512KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 3V | 6mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 34-PowerCap Module |
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DS1486-120+IC RTC CLK/CALENDAR PAR 32EDIP |
3,536 | - |
|
Datasheet | - | 32-DIP Module (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer | 128KB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 4mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 32-EDIP |
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DS1251WP-C02+IC RTC PHANTOM TIME CHIP PAR |
2,760 | - |
|
Datasheet | - | - | Tube | Obsolete | Not Verified | Phantom Time Chip | Leap Year, NVSRAM | 512KB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 3V | 7mA @ 3.3V | 0°C ~ 70°C | - | - | - | - |
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DS1251YP-70INDIC RTC PHANTOM CHIP PAR 34PCM |
3,625 | - |
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Datasheet | - | 34-PowerCap™ Module | Tube | Obsolete | Not Verified | Phantom Time Chip | Leap Year, NVSRAM | 512kb | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 3V | 10mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 34-PowerCap Module |
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DS1244W-120IND+IC RTC PHANTOM CHIP PAR 28EDIP |
2,183 | - |
|
Datasheet | - | 28-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Phantom Time Chip | Leap Year, NVSRAM | 32KB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | - | 7mA @ 3.3V | -40°C ~ 85°C | Through Hole | - | - | 28-EDIP |
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DS1251WP-120IND+IC RTC PHANTOM CHIP PAR 34PCM |
4,132 | - |
|
Datasheet | - | 34-PowerCap™ Module | Tube | Active | Not Verified | Phantom Time Chip | Leap Year, NVSRAM | 512KB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 3V | 7mA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 34-PowerCap Module |
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DS1747WP-120IC RTC CLK/CALENDAR PAR 34PCM |
4,708 | - |
|
Datasheet | - | 34-PowerCap™ Module | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 512KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 3V | 2mA @ 3.3V | 0°C ~ 70°C | Surface Mount | - | - | 34-PowerCap Module |
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DS1647-120IC RTC CLK/CALENDAR PAR 32EDIP |
2,608 | - |
|
Datasheet | - | 32-DIP Module (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year, NVSRAM | 512KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 4mA @ 4.5 V ~ 5.5 V | 0°C ~ 70°C | Through Hole | - | - | 32-EDIP |
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DS1254WB-C02IC RTC PHANTOM CHIP PAR 80BGA |
1,211 | - |
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Datasheet | - | 80-BBGA | Tray | Obsolete | Not Verified | Phantom Time Chip | Leap Year, NVSRAM | 2MB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 3V ~ 3.7V | 3V | - | - | Surface Mount | - | - | 80-BGA (40x40) |
Real Time Clocks FAQ
How can I narrow the current Real Time Clocks selection?
Use the available manufacturer and technical filters to compare matching parts by specifications, stock status, pricing and datasheet information.
Can EGOO help source hard-to-find or obsolete Real Time Clocks parts?
Yes. Send the manufacturer part number and required quantity to our sourcing team for availability, lead-time and alternative sourcing support.
Can I request a quotation for a BOM or small-batch requirement?
Yes. EGOO supports BOM sourcing, prototype quantities and small-batch purchasing. Provide your part list and quantities for a quotation review.
What information should I provide when requesting a quote?
Please provide the target part number, manufacturer, quantity and any required date code, package or delivery requirements so our team can respond more accurately.
