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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.

Parametric Selection Filter options by technical parameters
Stock & Datasheets Review availability and technical references
RFQ & BOM Support Send your target MPN, quantity or BOM
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
RV-8564-C2-32.768KHZ-10PPM-TA-QC Micro Crystal AG

RV-8564-C2-32.768KHZ-10PPM-TA-QC

IC RTC CLK/CALENDAR I2C 10SON

Micro Crystal AG

2,797 -
Datasheet C2 10-TDFN Exposed Pad Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Leap Year, Programmable Clock Output, Timer - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1V ~ 5.5V - 0.35µA @ 3V -40°C ~ 85°C (TA) Surface Mount - - 10-SON (5x3.2)
RV-2123-C2-32.768KHZ-20PPM-TA-QA Micro Crystal AG

RV-2123-C2-32.768KHZ-20PPM-TA-QA

TIMING REAL TIME CLOCK

Micro Crystal AG

1,163 -
Datasheet C2 10-TDFN Exposed Pad Bulk Active - Clock/Calendar Alarm, Leap Year - HH:MM:SS YY-MM-DD-dd SPI, 4-Wire Serial 5.5V - 180nA @ 3V -40°C ~ 85°C (TA) Surface Mount Automotive AEC-Q100 10-SON (5x3.2)
RV-2123-C2-32.768KHZ-10PPM-TA-QC Micro Crystal AG

RV-2123-C2-32.768KHZ-10PPM-TA-QC

IC RTC CLK/CALENDAR SPI 10SON

Micro Crystal AG

3,088 -
Datasheet C2 10-TDFN Exposed Pad Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Leap Year, Programmable Clock Output, Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd SPI, 4-Wire Serial 1.1V ~ 5.5V - 0.18µA @ 3V -40°C ~ 85°C (TA) Surface Mount - - 10-SON (5x3.2)
RV-1805-C3-32.768KHZ-2PPM-TA-QA Micro Crystal AG

RV-1805-C3-32.768KHZ-2PPM-TA-QA

IC RTC CLK/CALENDAR I2C 10SON

Micro Crystal AG

3,991 -
Datasheet - 10-VCDFN Tape & Reel (TR) Not For New Designs Not Verified Clock/Calendar Alarm, Programmable Clock Output, RAM, Timer, Trickle Charger, Watchdog Timer 256B HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.5V ~ 3.6V - 0.08µA @ 3V -40°C ~ 85°C (TA) Surface Mount Automotive AEC-Q200 10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-A-TA-QC Micro Crystal AG

RV-3129-C3-32.768KHZ-OPTION-A-TA-QC

IC RTC CLK/CALENDAR I2C 10SON

Micro Crystal AG

3,787 -
Datasheet C3 10-VCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger 2B, 8B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.3V ~ 5.5V - 1µA @ 3V -40°C ~ 85°C (TA) Surface Mount - - 10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-A-TA-QC Micro Crystal AG

RV-3149-C3-32.768KHZ-OPTION-A-TA-QC

IC RTC CLK/CALENDAR SPI 10SON

Micro Crystal AG

3,719 -
Datasheet C3 10-VCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger 2B, 8B HH:MM:SS (12/24 hr) YY-MM-DD-dd SPI, 4-Wire Serial 1.3V ~ 5.5V - 1µA @ 3V -40°C ~ 85°C (TA) Surface Mount - - 10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-B-TA-QA Micro Crystal AG

RV-3129-C3-32.768KHZ-OPTION-B-TA-QA

IC RTC CLK/CALENDAR I2C 10SON

Micro Crystal AG

3,335 -
Datasheet C3 10-VCDFN Bulk Active Not Verified Clock/Calendar Alarm, EEPROM, RAM, Trickle Charger 2B, 8B HH:MM:SS YY-MM-DD-dd I2C, 2-Wire Serial 1.3V ~ 5.5V, 2.1V ~ 5.5V - 1µA @ 3V -40°C ~ 85°C Surface Mount - - 10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-B-TB-QC Micro Crystal AG

RV-3129-C3-32.768KHZ-OPTION-B-TB-QC

IC RTC CLK/CALENDAR I2C 10SON

Micro Crystal AG

4,045 -
Datasheet C3 10-VCDFN Bulk Active Not Verified Clock/Calendar Alarm, EEPROM, RAM, Trickle Charger 2B, 8B HH:MM:SS YY-MM-DD-dd I2C, 2-Wire Serial 1.3V ~ 5.5V, 2.1V ~ 5.5V - 1µA @ 3V -40°C ~ 125°C Surface Mount - - 10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-B-TA-QA Micro Crystal AG

RV-3149-C3-32.768KHZ-OPTION-B-TA-QA

IC RTC CLK/CALENDAR SPI 10SON

Micro Crystal AG

1,218 -
Datasheet C3 10-VCDFN Bulk Active Not Verified Clock/Calendar Alarm, EEPROM, RAM, Trickle Charger 2B, 8B HH:MM:SS YY-MM-DD-dd SPI, 4-Wire Serial 1.3V ~ 5.5V, 2.1V ~ 5.5V - 1µA @ 3V -40°C ~ 85°C Surface Mount - - 10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-A-TB-QC Micro Crystal AG

RV-3149-C3-32.768KHZ-OPTION-A-TB-QC

IC RTC CLK/CALENDAR SPI 10SON

Micro Crystal AG

4,958 -
Datasheet C3 10-VCDFN Bulk Active Not Verified Clock/Calendar Alarm, EEPROM, RAM, Trickle Charger 2B, 8B HH:MM:SS YY-MM-DD-dd SPI, 4-Wire Serial 1.3V ~ 5.5V, 2.1V ~ 5.5V - 1µA @ 3V -40°C ~ 125°C Surface Mount - - 10-SON (3.7x2.5)
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WINSUN SOURCING SUPPORT

Need Help Sourcing Real Time Clocks?

Send the target part number, manufacturer, specifications and quantity. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and alternative-part options when appropriate.

Availability and lead-time support BOM, shortage and alternative sourcing
FREQUENTLY ASKED QUESTIONS

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.