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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RX-4803SAUA0 PURE SNIC RTC CLK/CALENDAR SER 14SOP |
3,037 | - |
|
Datasheet | RX-4803SA | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm | - | HH:MM:SS | YY-MM-DD-dd | 4-Wire Serial | 1.6V ~ 5.5V | 1.6V ~ 5.5V | 2.1µA ~ 3.4µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP |
|
DS1343E-33+T&RIC RTC CLK/CALENDAR SPI 20TSSOP |
4,322 | - |
|
Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | 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 | 3V ~ 5.5V | 1.3V ~ 5.5V | 120µA ~ 160µA @ 3.63V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 20-TSSOP |
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RX-4574LCBX PURE SNMODULE RTC SPI 32.768KHZ 12VSOJ |
3,500 | - |
|
Datasheet | - | - | Tape & Reel (TR) | Obsolete | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
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RTC-4543SB:B3 ROHSIC RTC CLK/CALENDAR SER 18SOP |
3,532 | - |
|
Datasheet | RTC-4543SB | 18-SOIC (0.213", 5.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 3-Wire Serial | 2.5V ~ 5.5V | - | 1µA ~ 3µA @ 2V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOP |
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DS1344E-33+T&RIC RTC CLK/CALENDAR SPI 20TSSOP |
2,164 | - |
|
Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | 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 | 3V ~ 5.5V | 1.3V ~ 5.5V | 120µA ~ 160µA @ 3.63V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 20-TSSOP |
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RX-8035SA:B PURE SN RIC RTC TIME EVENT REC I2C 14SOP |
3,225 | - |
|
Datasheet | RX-8035SA | 14-SOIC (0.197", 5.00mm Width) | Tube | 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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DS12R885S-33+T&RIC RTC CLK/CALENDAR PAR 24SOIC |
4,630 | - |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 2V ~ 3.05V | 2mA @ 2.97V ~ 3.63V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOIC |
|
DS12R885S-5+T&RIC RTC CLK/CALENDAR PAR 24SOIC |
4,478 | - |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2V ~ 3.05V | 2mA @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOIC |
|
DS1374C-3#T&RIC RTC BINARY COUNTER I2C 16SOIC |
3,500 | - |
|
Datasheet | - | 16-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Binary Counter | Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer | - | Binary | Binary | I2C, 2-Wire Serial | 2.7V ~ 3.3V | 1.3V ~ 3.7V | 125µA @ 2.7V ~ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 16-SOIC |
|
RX4111CE A3IC RTC CLK/CALENDAR SPI 10SMD |
3,068 | - |
|
Datasheet | RX4111CE | 10-SMD, No Lead | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, RAM | - | HH:MM:SS | YY-MM-DD | SPI, 4-Wire Serial | 1.6V ~ 5.5V | - | 3µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SMD |
|
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DS1678S/T&RIC RTC TIME EVENT REC I2C 8SOIC |
3,839 | - |
|
Datasheet | - | 8-SOIC (0.209", 5.30mm Width) | Tape & Reel (TR) | Obsolete | 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 |
|
RV-3049-C3-TB-QA-OPT BLINEAR IC |
4,992 | - |
|
Datasheet | - | - | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
M41T11MH6EIC RTC CLK/CALENDAR I2C 28SOH |
4,444 | - |
|
Datasheet | - | 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year, NVSRAM | 56B | HH:MM:SS | YY-MM-DD-dd | I2C, 2-Wire Serial | 2V ~ 5.5V | 2.5V ~ 3.5V | 70µA @ 2V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 28-SOH |
|
DS1685SN-3IC RTC CLK/CALENDAR PAR 24SOIC |
2,246 | - |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 3V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOIC |
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DS1685EN-3IC RTC CLK/CALENDAR PAR 24TSSOP |
4,895 | - |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 3V | -40°C ~ 85°C | Surface Mount | - | - | 24-TSSOP |
|
DS1685SN-5/T&RIC RTC CLK/CALENDAR PAR 24SOIC |
4,740 | - |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | 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 | -40°C ~ 85°C | Surface Mount | - | - | 24-SOIC |
|
DS1685EN-3/T&RIC RTC CLK/CALENDAR PAR 24TSSOP |
4,017 | - |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 3V | -40°C ~ 85°C | Surface Mount | - | - | 24-TSSOP |
|
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DS1388Z-3+T&RIC RTC CLK/CALENDAR I2C 8SOIC |
4,863 | - |
|
Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer | 512B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 3.3V | 1.3V ~ 5.5V | 140µA @ 2.7V ~ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
|
DS1602+IC RTC ELAPSED CNT SER 8DIP |
3,266 | - |
|
Datasheet | - | 8-DIP (0.300", 7.62mm) | Tube | Obsolete | Not Verified | Elapsed Time Counter | - | - | Binary | Binary | 3-Wire Serial | 4.5V ~ 5.5V | 2.5V ~ 3.5V | 50µA @ 5V | -40°C ~ 85°C | Through Hole | - | - | 8-PDIP |
|
DS1302S-16IC RTC CLK/CALENDAR SER 16SOIC |
4,740 | - |
|
Datasheet | - | 16-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Trickle-Charger | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3-Wire Serial | 2V ~ 5.5V | 2V ~ 5.5V | 0.3µA ~ 1µA @ 2V ~ 5V | 0°C ~ 70°C | Surface Mount | - | - | 16-SOIC |
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.
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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.
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Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.
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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.