Real Time Clocks
Use the filters and product table below to compare Real Time Clocks components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.
If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.
| 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 | - |
|
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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DS17285SN-5IC RTC CLK/CALENDAR PAR 24SOIC |
1,728 | - |
|
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 | - |
|
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 |
|
DS17285E-3IC RTC CLK/CALENDAR PAR 28TSOP |
4,855 | - |
|
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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DS12885T/T&RIC RTC CLK/CALENDAR PAR 32TQFP |
4,517 | - |
|
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) |
|
DS1558WIC RTC CLK/CALENDAR PAR 48LQFP |
4,691 | - |
|
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 | - |
|
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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DS1689SN/T&RIC RTC CLK/CALENDAR PAR 28SOIC |
3,546 | - |
|
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 |
|
DS2404S-001IC RTC BINARY CTR 1-WIRE 16SOIC |
3,547 | - |
|
Datasheet | EconoRAM | 16-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Binary Counter | Alarm, Square Wave Output, SRAM | 512B | Binary | Binary | 1-Wire® and 3-Wire | 2.8V ~ 5.5V | 2.8V ~ 5.5V | 500µA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 16-SOIC |
Real Time Clocks FAQ
Common questions about filtering, comparing and sourcing Real Time Clocks components.
How can I narrow the Real Time Clocks selection?
Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.
Should I confirm the datasheet before selecting a part?
Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.
Can Winsun (HK) Electronics help source a specific Real Time Clocks part number?
Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.
Do you support BOM, shortage or alternative-part requirements?
Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.
