X1226V8IT2

Real Time Clock Overview

The X1226V8IT2 is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation. It provides clock/calendar functionality with an I2C, 2-wire serial interface. The device supports HH:MM:SS time format in both 12 and 24-hour modes, and YY-MM-DD-dd date format. Key features include alarm capabilities and leap year compensation. It operates within a supply voltage range of 2.7V to 5.5V, with battery backup support from 1.8V to 5.5V. Maximum current consumption during timekeeping is 10µA to 20µA at 2.7V to 5V. The component is housed in an 8-TSSOP package with a width of 4.40mm.

Real Time Clock Feature Summary

• I2C 2-Wire Serial Interface
• Alarm Functionality
• Leap Year Compensation
• Battery Backup Support

Real Time Clock Applications

• Clock/Calendar Systems
• Data Logging Devices
• Industrial Control Equipment

Real Time Clock Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors or secondary market suppliers. Check for RoHS compliance status as indicated in manufacturer documentation. Ensure compatibility with existing PCB footprints for the 8-TSSOP package. Review lead times carefully due to potential discontinuation.

Real Time Clock Selection Notes

Select this RTC when I2C connectivity and low power consumption are required. Verify that the operating temperature range meets application needs. Consider the 8-TSSOP package size constraints. Evaluate if the specific alarm and leap year features align with system requirements. Compare against newer replacements if long-term supply is critical.

Real Time Clock Part Context

The X1226V8IT2 belongs to the X1226 series of real-time clocks from Renesas. This series is designed for applications requiring accurate timekeeping with minimal power usage. The 'V8I' suffix typically denotes the 8-TSSOP package and industrial temperature range variants within the family. Related parts include the X1226S8Z and ISL12026 series components.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers include ISL12026IBZ-T and PCA8565TS/1,118. These alternatives offer similar I2C RTC functionality. Verify pinout compatibility and feature parity before substitution. Check for any differences in supply voltage ranges or package dimensions.