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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.

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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
BQ32000DR Texas Instruments

BQ32000DR

IC RTC CLK/CALENDAR I2C 8SOIC

Texas Instruments

16,487

169+:$1.78000

Datasheet - 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 3V ~ 3.6V 1.4V ~ 3.6V 100µA @ 3.3V -40°C ~ 85°C Surface Mount - - 8-SOIC
BQ32002DR Texas Instruments

BQ32002DR

IC RTC CLK/CALENDAR I2C 8SOIC

Texas Instruments

2,915

1+:$2.09000

10+:$1.53500

25+:$1.39720

100+:$1.24580

250+:$1.17352

500+:$1.12994

1000+:$1.10769

Datasheet - 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Leap Year, Square Wave Output - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 3V ~ 3.6V 1.4V ~ 3.6V 65µA @ 3.3V -40°C ~ 85°C Surface Mount - - 8-SOIC
BQ3285S-SB2 Texas Instruments

BQ3285S-SB2

IC RTC CLK/CALENDAR PAR 24SOIC

Texas Instruments

380

1+:$19.60000

10+:$15.57900

25+:$14.57400

100+:$13.46970

Datasheet - 24-SOIC (0.295", 7.50mm Width) Bulk Active 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 - 0°C ~ 70°C Surface Mount - - 24-SOIC
BQ32002D Texas Instruments

BQ32002D

IC RTC CLK/CALENDAR I2C 8SOIC

Texas Instruments

2,708

1+:$2.45000

10+:$1.81700

75+:$1.51280

150+:$1.44213

300+:$1.38397

525+:$1.34459

1050+:$1.30367

2550+:$1.26166

5025+:$1.23592

Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Active Not Verified Clock/Calendar Leap Year, Square Wave Output - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 3V ~ 3.6V 1.4V ~ 3.6V 200µA @ 3.3V -40°C ~ 85°C (TA) Surface Mount - - 8-SOIC
BQ32000D Texas Instruments

BQ32000D

IC RTC CLK/CALENDAR I2C 8SOIC

Texas Instruments

594

1+:$2.77000

10+:$2.06200

75+:$1.72573

150+:$1.64747

300+:$1.58307

525+:$1.53947

1050+:$1.49415

2550+:$1.44765

5025+:$1.41915

Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Active Not Verified Clock/Calendar Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 3V ~ 3.6V 1.4V ~ 3.6V 100µA @ 3.3V -40°C ~ 85°C Surface Mount - - 8-SOIC
BQ4802YDWR Texas Instruments

BQ4802YDWR

IC RTC CLK/CALENDAR PAR 28SOIC

Texas Instruments

2,242

17+:$17.69000

Datasheet - 28-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.4V ~ 4V 1.5mA (Typ) @ 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount - - 28-SOIC
BQ4802LYPWR Texas Instruments

BQ4802LYPWR

IC RTC CLK/CALENDAR PAR 28TSSOP

Texas Instruments

1,622

1+:$9.37000

10+:$7.26500

25+:$6.74040

100+:$6.16290

250+:$5.95172

1000+:$5.61484

Datasheet - 28-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 3.6V 2.4V ~ 4V 1.5mA (Typ) @ 2.7 V ~ 3.6 V 0°C ~ 70°C Surface Mount - - 28-TSSOP
BQ4802LYDWR Texas Instruments

BQ4802LYDWR

IC RTC CLK/CALENDAR PAR 28SOIC

Texas Instruments

313

50+:$5.95000

Datasheet - 28-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 3.6V 2.4V ~ 4V 1.5mA (Typ) @ 2.7 V ~ 3.6 V 0°C ~ 70°C Surface Mount - - 28-SOIC
BQ4802YPW Texas Instruments

BQ4802YPW

IC RTC CLK/CALENDAR PAR 28TSSOP

Texas Instruments

5,861

1+:$12.76000

10+:$10.02100

Datasheet - 28-TSSOP (0.173", 4.40mm Width) Bulk Active Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.4V ~ 4V 1.5mA (Typ) @ 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount - - 28-TSSOP
BQ3285ESS-TR1 Texas Instruments

BQ3285ESS-TR1

RTC, NON-VOLATILE, 1 TIMER(S)

Texas Instruments

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
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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.

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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.