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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DS1557P-70+IC RTC CLK/CALENDAR PAR 34PCM |
4,251 | - |
|
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 | 0°C ~ 70°C | Surface Mount | - | - | 34-PowerCap Module |
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DS1251WP-120+IC RTC PHANTOM CHIP PAR 34PCM |
2,927 | - |
|
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 | 0°C ~ 70°C | Surface Mount | - | - | 34-PowerCap Module |
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DS1746WP-120IND+IC RTC CLK/CALENDAR PAR 34PCM |
4,567 | - |
|
Datasheet | - | 34-PowerCap™ Module | Tray | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 128KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 3V | 2mA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 34-PowerCap Module |
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DS1747-70IND+IC RTC CLK/CALENDAR PAR 32EDIP |
4,913 | - |
|
Datasheet | - | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 512KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 4mA @ 5V | -40°C ~ 85°C | Through Hole | - | - | 32-EDIP |
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MAX31343EKA+IC RTC CLK/CALENDAR I2C 8WLP |
4,883 | - |
|
Datasheet | - | 8-VFBGA, WLBGA | Strip | Active | Not Verified | Clock/Calendar | Alarm | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | I2C | 1.6V ~ 5.5V | - | 1.2µA ~ 2µA @ 1.6V ~ 5.5V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 8-WLP (2.07x2.27) |
|
PCF85063AT/AYPCF85063AT - Tiny Real-Time Cloc |
68,624 | - |
|
Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Bulk | Active | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C | 0.9V ~ 5.5V, 1.8V ~ 5.5V | - | 0.6µA @ 3.3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 8-SOIC |
|
DS1375T2-WIRE DIGITAL INPUT RTC |
3,797 | - |
|
Datasheet | - | 6-WDFN Exposed Pad | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 16B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C | 1.7V ~ 5.5V | 1.3V ~ 5.5V | 0.5µA @ 1.7V ~ 5.5V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 6-TDFN-EP (3x3) |
|
|
R2061S02-E2-F3 WIRE INTERFACE REAL-TIME CLOCK |
2,000 | - |
|
Datasheet | * | - | Tape & Reel (TR) | Active | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
R2062L01-E23 WIRE INTERFACE REAL-TIME CLOCK |
2,634 | - |
|
Datasheet | * | - | Tape & Reel (TR) | Obsolete | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
BU9873FVM-GTTRIC RTC CLK/CALENDAR I2C 8MSOP |
269 | - |
|
Datasheet | - | 8-VSSOP, 8-MSOP (0.110", 2.80mm Width) | Tape & Reel (TR) | Not For New Designs | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 1µA ~ 1.35µA @ 3V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-MSOP |
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X1205V8IC RTC CLK/CALENDAR I2C 8TSSOP |
1,594 | - |
|
Datasheet | - | 8-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5V | 0°C ~ 70°C | Surface Mount | - | - | 8-TSSOP |
|
MAX6900ETTAEQ-TI2C-BUS-COMPATIBLE REAL-TIME CLO |
1,000 | - |
|
Datasheet | * | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
ISL12021CVZIC RTC CLK/CALENDAR I2C 14TSSOP |
601 | - |
|
Datasheet | - | 14-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, SRAM | 128B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 5.5µA ~ 6.5µA @ 3V ~ 5V | -20°C ~ 70°C | Surface Mount | - | - | 14-TSSOP |
|
PCF85263AUKZIC RTC CLK/CALENDAR I2C 12WLCSP |
39,965 | - |
|
Datasheet | - | 12-XFBGA, WLCSP | Tape & Reel (TR) | Last Time Buy | Not Verified | Clock/Calendar | Alarm, Leap Year, Watchdog Timer | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | I2C | 0.9V ~ 5.5V, 1.8V ~ 5.5V | 0.9V ~ 5.5V | 0.885µA @ 3.3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 12-WLCSP (1.19x0.94) |
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DS2417XIC RTC BINARY CNT 1-WIRE 6FLIP |
6,802 | - |
|
Datasheet | - | 6-VFBGA, FCBGA | Bulk | Active | Not Verified | Binary Counter | Unique ID | - | Binary | Binary | 1-Wire® Serial | 2.5V ~ 5.5V | - | 0.45µA @ 2.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 6-FlipChip (1.09x1.37) |
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ISL12058IRTZ-TIC RTC CLK/CALENDAR I2C 8TDFN |
1,521 | - |
|
Datasheet | - | 8-WDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 3.6V | - | 0.65µA @ 1.8V | -40°C ~ 85°C | Surface Mount | - | - | 8-TDFN (3x3) |
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DS1685XE/T&RIC RTC CLOCK/CALENDAR PAR |
9,030 | - |
|
Datasheet | - | - | Bulk | Active | Not Verified | Clock/Calendar | Alarm, Daylight Savings, NVRAM, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | - | - | - | 0°C ~ 70°C (TA) | - | - | - | - |
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BQ3285ESS-TR1RTC, NON-VOLATILE, 1 TIMER(S) |
3,051 | - |
|
Datasheet | - | 24-SSOP (0.154", 3.90mm Width) | Bulk | Active | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 4V | 300µA @ 5V | 0°C ~ 70°C | Surface Mount | - | - | 24-SSOP |
|
ISL1208IU8IC RTC CLK/CALENDAR I2C 8MSOP |
3,747 | - |
|
Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | 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 | - | - | 8-MSOP |
|
DS1337IC RTC CLOCK/CALENDAR I2C 8DIP |
2,703 | - |
|
Datasheet | - | 8-DIP (0.300", 7.62mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.6µA @ 1.3V ~ 1.8V | -40°C ~ 85°C | Through Hole | - | - | 8-PDIP |
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.
Can Winsun help source specific Real Time Clocks part numbers?
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.
Do you support shortage, obsolete or hard-to-find Real Time Clocks parts?
Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.
How do I request a quote for Real Time Clocks components?
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.
