Welcome to Winsun (HK) Electronics Limited!
+86-(0755)8253 3846
EXPLORE COMPONENTS

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.

Compare Part Numbers Review available models and manufacturers
Datasheets & Specifications Access technical references quickly
RFQ & BOM Support Send quantities for sourcing and quotation
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
RX-4803SAUA0 PURE SN EPSON

RX-4803SAUA0 PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

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&R Analog Devices Inc./Maxim Integrated

DS1343E-33+T&R

IC RTC CLK/CALENDAR SPI 20TSSOP

Analog Devices Inc./Maxim Integrated

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
RX-4574LCBX PURE SN EPSON

RX-4574LCBX PURE SN

MODULE RTC SPI 32.768KHZ 12VSOJ

EPSON

3,500 -
Datasheet - - Tape & Reel (TR) Obsolete Not Verified - - - - - - - - - - - - - -
RTC-4543SB:B3 ROHS EPSON

RTC-4543SB:B3 ROHS

IC RTC CLK/CALENDAR SER 18SOP

EPSON

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
DS1344E-33+T&R Analog Devices Inc./Maxim Integrated

DS1344E-33+T&R

IC RTC CLK/CALENDAR SPI 20TSSOP

Analog Devices Inc./Maxim Integrated

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
RX-8035SA:B PURE SN R EPSON

RX-8035SA:B PURE SN R

IC RTC TIME EVENT REC I2C 14SOP

EPSON

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
DS12R885S-33+T&R Analog Devices Inc./Maxim Integrated

DS12R885S-33+T&R

IC RTC CLK/CALENDAR PAR 24SOIC

Analog Devices Inc./Maxim Integrated

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&R Analog Devices Inc./Maxim Integrated

DS12R885S-5+T&R

IC RTC CLK/CALENDAR PAR 24SOIC

Analog Devices Inc./Maxim Integrated

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&R Analog Devices Inc./Maxim Integrated

DS1374C-3#T&R

IC RTC BINARY COUNTER I2C 16SOIC

Analog Devices Inc./Maxim Integrated

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 A3 EPSON

RX4111CE A3

IC RTC CLK/CALENDAR SPI 10SMD

EPSON

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
DS1678S/T&R Analog Devices Inc./Maxim Integrated

DS1678S/T&R

IC RTC TIME EVENT REC I2C 8SOIC

Analog Devices Inc./Maxim Integrated

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 B EM Microelectronic

RV-3049-C3-TB-QA-OPT B

LINEAR IC

EM Microelectronic

4,992 -
Datasheet - - Tape & Reel (TR) Active - - - - - - - - - - - - - - -
M41T11MH6E STMicroelectronics

M41T11MH6E

IC RTC CLK/CALENDAR I2C 28SOH

STMicroelectronics

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-3 Analog Devices Inc./Maxim Integrated

DS1685SN-3

IC RTC CLK/CALENDAR PAR 24SOIC

Analog Devices Inc./Maxim Integrated

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
DS1685EN-3 Analog Devices Inc./Maxim Integrated

DS1685EN-3

IC RTC CLK/CALENDAR PAR 24TSSOP

Analog Devices Inc./Maxim Integrated

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&R Analog Devices Inc./Maxim Integrated

DS1685SN-5/T&R

IC RTC CLK/CALENDAR PAR 24SOIC

Analog Devices Inc./Maxim Integrated

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&R Analog Devices Inc./Maxim Integrated

DS1685EN-3/T&R

IC RTC CLK/CALENDAR PAR 24TSSOP

Analog Devices Inc./Maxim Integrated

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
DS1388Z-3+T&R Analog Devices Inc./Maxim Integrated

DS1388Z-3+T&R

IC RTC CLK/CALENDAR I2C 8SOIC

Analog Devices Inc./Maxim Integrated

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+ Analog Devices Inc./Maxim Integrated

DS1602+

IC RTC ELAPSED CNT SER 8DIP

Analog Devices Inc./Maxim Integrated

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-16 Analog Devices Inc./Maxim Integrated

DS1302S-16

IC RTC CLK/CALENDAR SER 16SOIC

Analog Devices Inc./Maxim Integrated

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
Total 2405 Record«Prev1... 6061626364656667...121Next»
WINSUN SOURCING SUPPORT

Need Real Time Clocks Sourcing Support?

Send the manufacturer, part number, quantity and target delivery requirement. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and hard-to-find or obsolete components.

Global component sourcing support BOM, shortage and EOL support
FREQUENTLY ASKED QUESTIONS

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.