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
X1226V8 Renesas Electronics Corporation

X1226V8

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

2,827
RFQ
X1226V8 Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-TSSOP
X1226V8I Renesas Electronics Corporation

X1226V8I

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

2,573
RFQ
X1226V8I Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C Surface Mount - - 8-TSSOP
X1226V8IT1 Renesas Electronics Corporation

X1226V8IT1

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

3,387
RFQ
X1226V8IT1 Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) 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 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C Surface Mount - - 8-TSSOP
X1226V8IT2 Renesas Electronics Corporation

X1226V8IT2

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

4,216
RFQ
X1226V8IT2 Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) 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 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C Surface Mount - - 8-TSSOP
X1226V8T1 Renesas Electronics Corporation

X1226V8T1

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

1,920
RFQ
X1226V8T1 Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) 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 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-TSSOP
X1226V8T2 Renesas Electronics Corporation

X1226V8T2

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

3,954
RFQ
X1226V8T2 Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) 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 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-TSSOP
X1226V8Z Renesas Electronics Corporation

X1226V8Z

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

1,008
RFQ
X1226V8Z Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-TSSOP
X1226V8ZT1 Renesas Electronics Corporation

X1226V8ZT1

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

4,180
RFQ
X1226V8ZT1 Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) 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 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-TSSOP
X1227S8I Renesas Electronics Corporation

X1227S8I

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

4,875
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
X1227S8I-2.7 Renesas Electronics Corporation

X1227S8I-2.7

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

2,838
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
X1227S8I-2.7A Renesas Electronics Corporation

X1227S8I-2.7A

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

2,564
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
X1227S8I-4.5A Renesas Electronics Corporation

X1227S8I-4.5A

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

3,306
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
X1227S8IZ-2.7A Renesas Electronics Corporation

X1227S8IZ-2.7A

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

3,840
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
X1227S8IZ-4.5A Renesas Electronics Corporation

X1227S8IZ-4.5A

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

4,281
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C Surface Mount - - 8-SOIC
X1227S8Z Renesas Electronics Corporation

X1227S8Z

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

4,885
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-SOIC
X1227S8Z-2.7 Renesas Electronics Corporation

X1227S8Z-2.7

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

2,582
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-SOIC
X1227S8Z-2.7A Renesas Electronics Corporation

X1227S8Z-2.7A

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

1,258
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-SOIC
X1227S8Z-4.5A Renesas Electronics Corporation

X1227S8Z-4.5A

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

1,545
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-SOIC
X1227V8 Renesas Electronics Corporation

X1227V8

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

2,950
RFQ

-

- 8-TSSOP (0.173", 4.40mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-TSSOP
X1227V8-2.7 Renesas Electronics Corporation

X1227V8-2.7

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

1,117
RFQ

-

- 8-TSSOP (0.173", 4.40mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-TSSOP
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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.