Real Time Clocks

Manufacturer 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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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
PT7C43390WE Diodes Incorporated

PT7C43390WE

IC RTC CLK/CALENDAR I2C 8SOIC

Diodes Incorporated

2,176
RFQ
PT7C43390WE Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) 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 1.35V ~ 5.5V - 0.6µA ~ 0.7µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
PT7C4372AWE Diodes Incorporated

PT7C4372AWE

IC RTC CLK/CALENDAR I2C 8SOIC

Diodes Incorporated

4,476
RFQ
PT7C4372AWE Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.8V ~ 6V - 0.8µA @ 3V -40°C ~ 85°C (TA) Surface Mount - - 8-SOIC
PT7C43190AWEX Diodes Incorporated

PT7C43190AWEX

IC RTC CLK/CALENDAR SER 8SOIC

Diodes Incorporated

2,854
RFQ
PT7C43190AWEX Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output - HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 1.35V ~ 5.5V - 0.6µA ~ 14µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
PT7C4563UE Diodes Incorporated

PT7C4563UE

IC RTC CLK/CALENDAR I2C 8MSOP

Diodes Incorporated

3,840
RFQ
PT7C4563UE Datasheet

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.3V ~ 5.5V - 0.65µA ~ 0.85µA @ 3V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-MSOP
PT7C4563WE Diodes Incorporated

PT7C4563WE

IC RTC CLK/CALENDAR I2C 8SOIC

Diodes Incorporated

1,639
RFQ
PT7C4563WE Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.3V ~ 5.5V - 0.65µA ~ 0.85µA @ 3V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-SOIC
PT7C43390AWEX Diodes Incorporated

PT7C43390AWEX

IC RTC CLK/CALENDAR I2C 8SOIC

Diodes Incorporated

3,678
RFQ
PT7C43390AWEX Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.35V ~ 5.5V - 0.6µA ~ 0.7µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
PT7C4337LE Diodes Incorporated

PT7C4337LE

IC RTC CLK/CALENDAR I2C 8TSSOP

Diodes Incorporated

4,472
RFQ
PT7C4337LE Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) 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 - 0.8µA @ 1.3V ~ 1.8V -40°C ~ 85°C (TA) Surface Mount - - 8-TSSOP
PT7C4337LEX Diodes Incorporated

PT7C4337LEX

IC RTC CLK/CALENDAR I2C 8TSSOP

Diodes Incorporated

2,328
RFQ
PT7C4337LEX Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) 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 - 0.8µA @ 1.3V ~ 1.8V -40°C ~ 85°C (TA) Surface Mount - - 8-TSSOP
PT7C43190LE Diodes Incorporated

PT7C43190LE

IC RTC CLK/CALENDAR SER 8TSSOP

Diodes Incorporated

1,223
RFQ
PT7C43190LE Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output - HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 1.35V ~ 5.5V - 0.6µA ~ 14µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 8-TSSOP
PT7C43190WE Diodes Incorporated

PT7C43190WE

IC RTC CLK/CALENDAR SER 8SOIC

Diodes Incorporated

2,132
RFQ
PT7C43190WE Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output - HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 1.35V ~ 5.5V - 0.6µA ~ 14µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
PT7C4363WE Diodes Incorporated

PT7C4363WE

IC RTC CLK/CALENDAR I2C 8SOIC

Diodes Incorporated

1,992
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) 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 1.3V ~ 5.5V - 0.85µA ~ 0.9µA @ 3V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-SOIC
PT7C4363WEX Diodes Incorporated

PT7C4363WEX

IC RTC CLK/CALENDAR I2C 8SOIC

Diodes Incorporated

2,564
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) 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 1.3V ~ 5.5V - 0.85µA ~ 0.9µA @ 3V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-SOIC
PT7C4563LE Diodes Incorporated

PT7C4563LE

IC RTC CLK/CALENDAR I2C 8TSSOP

Diodes Incorporated

1,844
RFQ
PT7C4563LE Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.3V ~ 5.5V - 0.65µA ~ 0.85µA @ 3V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-TSSOP
PT7C4563LEX Diodes Incorporated

PT7C4563LEX

IC RTC CLK/CALENDAR I2C 8TSSOP

Diodes Incorporated

4,531
RFQ
PT7C4563LEX Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.3V ~ 5.5V - 0.65µA ~ 0.85µA @ 3V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-TSSOP
AS1810-PTR ams-OSRAM USA INC.

AS1810-PTR

IC RTC CLK/CALENDAR I2C 8-TDFN

ams-OSRAM USA INC.

4,122
RFQ

-

- - Tape & Reel (TR) Obsolete Not Verified - - - - - - - - - - - - - -
PT7C4302ZEEX Diodes Incorporated

PT7C4302ZEEX

IC RTC CLK/CALENDAR SER 8TDFN

Diodes Incorporated

2,018
RFQ
PT7C4302ZEEX Datasheet

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 1.2V ~ 5.5V 1.5V ~ 5.5V 25.3µA ~ 81µA @ 2V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-TDFN (2x3)
PT7C4372AZEEX Diodes Incorporated

PT7C4372AZEEX

IC RTC CLK/CALENDAR I2C 8TDFN

Diodes Incorporated

4,726
RFQ
PT7C4372AZEEX Datasheet

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.8V ~ 6V - 0.8µA @ 3V -40°C ~ 85°C (TA) Surface Mount - - 8-TDFN (2x3)
PT7C4563ZEEX Diodes Incorporated

PT7C4563ZEEX

IC RTC CLK/CALENDAR I2C 8TDFN

Diodes Incorporated

4,575
RFQ
PT7C4563ZEEX Datasheet

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.3V ~ 5.5V - 0.65µA ~ 0.85µA @ 3V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-TDFN (2x3)
PT7C4302ZEE Diodes Incorporated

PT7C4302ZEE

IC RTC CLK/CALENDAR SER 8TDFN

Diodes Incorporated

3,697
RFQ
PT7C4302ZEE Datasheet

Datasheet

- 8-WFDFN Exposed Pad Bulk Obsolete Not Verified Clock/Calendar Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 1.2V ~ 5.5V 1.5V ~ 5.5V 25.3µA ~ 81µA @ 2V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-TDFN (2x3)
PT7C4372AZEE Diodes Incorporated

PT7C4372AZEE

IC RTC CLK/CALENDAR I2C 8TDFN

Diodes Incorporated

3,763
RFQ

-

- 8-WFDFN Exposed Pad Bulk Obsolete Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.8V ~ 6V - 0.8µA @ 3V -40°C ~ 85°C (TA) Surface Mount - - 8-TDFN (2x3)
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Real Time Clocks Electronic Components Sourcing and Lifecycle Support

FPGAX is a global sourcing partner specializing in FPGA and programmable logic solutions for engineering and manufacturing organizations worldwide. For customers sourcing Real Time Clocks components, we support both current production requirements and long-term component availability across demanding product lifecycles.

Our sourcing approach combines traceability, supply stability, and technical coordination. FPGAX is certified to AS9120B, ISO 9001:2008, and ISO 14001 standards and supports procurement programs where continuity, documentation, and dependable component supply are important.

How FPGAX Supports Real Time Clocks Requirements

  • Active component sourcing: support for current FPGA, programmable logic, and related semiconductor requirements.
  • End-of-life sourcing: assistance with obsolete and hard-to-find parts when designs must remain in production.
  • Lifecycle management: sourcing support during product transitions, allocation periods, and supply interruptions.
  • Design continuity: long-term supply support intended to reduce redesign pressure and production disruption.
  • Major programmable logic brands: sourcing coverage includes Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic.

Supply Support at a Glance

Requirement FPGAX Support
Current production Active FPGA, programmable logic, and semiconductor component sourcing
Legacy programs End-of-life and hard-to-find component sourcing
Supply continuity Lifecycle transition and long-term availability support
Quality requirements Traceable sourcing and quality-management processes

Focused on FPGA and Programmable Logic Supply

FPGAX focuses on helping customers maintain access to critical programmable devices throughout the full component lifecycle. Whether the requirement is for a current design, an established production program, or an older platform facing component obsolescence, our goal is to provide a stable sourcing path and help customers maintain design and manufacturing continuity.

Real Time Clocks FAQ

Can FPGAX source both active and end-of-life Real Time Clocks components?

Yes. FPGAX supports sourcing for both active components and end-of-life or hard-to-find parts, with an emphasis on maintaining supply continuity for engineering and manufacturing programs.

Which programmable logic manufacturers does FPGAX support?

Our core sourcing coverage includes major FPGA and programmable logic manufacturers such as Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic, subject to specific part requirements and availability.

How does FPGAX help with component lifecycle changes?

We support customers through lifecycle transitions by helping locate current or legacy supply, reducing exposure to supply disruptions, and supporting long-term availability for designs that need to remain in production.

What quality and traceability standards does FPGAX follow?

FPGAX states certification to AS9120B, ISO 9001:2008, and ISO 14001 standards. Our sourcing services are structured around traceability, stable supply, and quality-management requirements.

What information should I provide for a Real Time Clocks sourcing request?

Providing the manufacturer part number, required quantity, target delivery schedule, and any lifecycle or traceability requirements helps us evaluate the sourcing request more efficiently.