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Real Time Clocks

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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
DS1339U-33+T&R Analog Devices Inc./Maxim Integrated

DS1339U-33+T&R

IC RTC CLOCK/CALENDAR I2C 8UMAX

Analog Devices Inc./Maxim Integrated

8,681 -
Datasheet - 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.97V ~ 5.5V 1.3V ~ 3.7V 200µA @ 5.5V -40°C ~ 85°C Surface Mount - - 8-uMAX/uSOP
DS1302+ Analog Devices Inc./Maxim Integrated

DS1302+

IC RTC CLK/CALENDAR SER 8DIP

Analog Devices Inc./Maxim Integrated

1,350 -
Datasheet - 8-DIP (0.300", 7.62mm) Tube Active 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 Through Hole - - 8-PDIP
DS1302Z+ Analog Devices Inc./Maxim Integrated

DS1302Z+

IC RTC CLK/CALENDAR SER 8SOIC

Analog Devices Inc./Maxim Integrated

2,283 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Active 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 - - 8-SOIC
MAX31343ETAY+T Analog Devices Inc./Maxim Integrated

MAX31343ETAY+T

ACCURATE/ROBUST RTC WITH INTEGRA

Analog Devices Inc./Maxim Integrated

434 -
Datasheet - 8-VFBGA, WLBGA Tape & Reel (TR) Active - Clock/Calendar Alarm, Leap Year, RAM, Square Wave Output, SRAM, Trickle Charger 64B HH:MM:SS (24 hr) YY-MM-DD-dd I2C 1.6V ~ 5.5V 1.6V ~ 5.5V 1.2µA ~ 2µA @ 1.6V ~ 5.5V -40°C ~ 85°C (TA) Surface Mount - - 8-WLP (2.07x2.27)
DS1374U-18+ Analog Devices Inc./Maxim Integrated

DS1374U-18+

IC RTC BINARY COUNTER I2C 10UMAX

Analog Devices Inc./Maxim Integrated

3,996 -
Datasheet - 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Not Verified Binary Counter Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer - Binary Binary I2C, 2-Wire Serial 1.71V ~ 1.89V 1.3V ~ 3.7V 100µA @ 1.71V ~ 1.89V -40°C ~ 85°C Surface Mount - - 10-uMAX/uSOP
DS1391U-33+ Analog Devices Inc./Maxim Integrated

DS1391U-33+

IC RTC CLK/CALENDAR SPI 10UMAX

Analog Devices Inc./Maxim Integrated

1,534 -
Datasheet - 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd SPI 2.97V ~ 5.5V 1.3V ~ 5.5V 175µA @ 2.97V ~ 5.5V -40°C ~ 85°C Surface Mount - - 10-uMAX/uSOP
DS1338Z-33+ Analog Devices Inc./Maxim Integrated

DS1338Z-33+

IC RTC CLK/CALENDAR I2C 8SOIC

Analog Devices Inc./Maxim Integrated

1,307 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Active Not Verified Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 3V ~ 5.5V 1.3V ~ 3.7V 125µA ~ 200µA @ 3.63V ~ 5.5V -40°C ~ 85°C Surface Mount - - 8-SOIC
DS1307+ Analog Devices Inc./Maxim Integrated

DS1307+

IC RTC CLOCK/CALENDAR I2C 8DIP

Analog Devices Inc./Maxim Integrated

3,574 -
Datasheet - 8-DIP (0.300", 7.62mm) Tube Active Not Verified Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 2V ~ 3.5V 200µA @ 5V 0°C ~ 70°C Through Hole - - 8-PDIP
RX8901CE XS A06 EPSON

RX8901CE XS A06

IC RTC CLK/CALENDAR I2C 10SMD

EPSON

670 -
Datasheet RX8901CE 10-SMD, No Lead Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm - HH:MM:SS YY-MM-DD I2C 1.6V ~ 5.5V - 1.5µA @ 3V -40°C ~ 105°C (TA) Surface Mount - - 10-SMD
DS1307ZN+ Analog Devices Inc./Maxim Integrated

DS1307ZN+

IC RTC CLK/CALENDAR I2C 8SOIC

Analog Devices Inc./Maxim Integrated

2,053 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Active Not Verified Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 2V ~ 3.5V 200µA @ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
DS1338Z-18+ Analog Devices Inc./Maxim Integrated

DS1338Z-18+

IC RTC CLK/CALENDAR I2C 8SOIC

Analog Devices Inc./Maxim Integrated

2,429 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Active Not Verified Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.71V ~ 5.5V 1.3V ~ 3.7V 100µA @ 1.89V -40°C ~ 85°C Surface Mount - - 8-SOIC
DS1340Z-33+ Analog Devices Inc./Maxim Integrated

DS1340Z-33+

IC RTC CLK/CALENDAR I2C 8SOIC

Analog Devices Inc./Maxim Integrated

789 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Active Not Verified Clock/Calendar Leap Year, Trickle-Charger - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.97V ~ 5.5V 1.3V ~ 5.5V 150µA @ 5.5V -40°C ~ 85°C Surface Mount - - 8-SOIC
DS1374U-33+ Analog Devices Inc./Maxim Integrated

DS1374U-33+

IC RTC BINARY COUNTER I2C 10UMAX

Analog Devices Inc./Maxim Integrated

3,517 -
Datasheet - 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Not Verified Binary Counter Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer - Binary Binary I2C, 2-Wire Serial 2.97V ~ 5.5V 1.3V ~ 5.5V 175µA @ 2.97V ~ 5.5V -40°C ~ 85°C Surface Mount - - 10-uMAX/uSOP
DS1390U-33+ Analog Devices Inc./Maxim Integrated

DS1390U-33+

IC RTC CLK/CALENDAR SPI 10UMAX

Analog Devices Inc./Maxim Integrated

2,498 -
Datasheet - 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd SPI 2.97V ~ 5.5V 1.3V ~ 5.5V 175µA @ 2.97V ~ 5.5V -40°C ~ 85°C Surface Mount - - 10-uMAX/uSOP
DS1302ZN+ Analog Devices Inc./Maxim Integrated

DS1302ZN+

IC RTC CLK/CALENDAR SER 8SOIC

Analog Devices Inc./Maxim Integrated

2,770 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Active 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 -40°C ~ 85°C Surface Mount - - 8-SOIC
DS1339U-33+ Analog Devices Inc./Maxim Integrated

DS1339U-33+

IC RTC CLOCK/CALENDAR I2C 8UMAX

Analog Devices Inc./Maxim Integrated

1,866 -
Datasheet - 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.97V ~ 5.5V 1.3V ~ 3.7V 200µA @ 5.5V -40°C ~ 85°C Surface Mount - - 8-uMAX/uSOP
DS1683S+T&R Analog Devices Inc./Maxim Integrated

DS1683S+T&R

IC RTC ELAPSED CNT I2C 8SOIC

Analog Devices Inc./Maxim Integrated

6,268 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Verified Elapsed Time Counter Alarm, EEPROM 16B Binary Binary I2C, 2-Wire Serial 2.5V ~ 5.5V - - -40°C ~ 85°C Surface Mount - - 8-SOIC
DS1683S+ Analog Devices Inc./Maxim Integrated

DS1683S+

IC RTC ELAPSED CNT I2C 8SOIC

Analog Devices Inc./Maxim Integrated

1,747 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Active Verified Elapsed Time Counter Alarm, EEPROM 16B Binary Binary I2C, 2-Wire Serial 2.5V ~ 5.5V - - -40°C ~ 85°C Surface Mount - - 8-SOIC
RX-8025SA:AA3 EPSON

RX-8025SA:AA3

IC RTC CLK/CALENDAR I2C 14SOP

EPSON

18,649 -
Datasheet RX-8025SA 14-SOIC (0.197", 5.00mm Width) 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 1.7V ~ 5.5V - 1.2µA ~ 1.8µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 14-SOP
AB-RTCMC-32.768KHZ-EOA9-S3-DBT Abracon LLC

AB-RTCMC-32.768KHZ-EOA9-S3-DBT

IC RTC CLK/CALENDAR SPI MODULE

Abracon LLC

1,205 -
Datasheet - 10-SMD Module Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Trickle-Charger 8B HH:MM:SS (12/24 hr) YY-MM-DD-dd SPI 1.4V ~ 5.5V 1.4V ~ 5.5V 1.5µA ~ 2.2µA @ 1.4V ~ 5V -40°C ~ 85°C Surface Mount - - Module
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Real Time Clocks FAQ

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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.