X1226V8Z

Overview

The X1226V8Z is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation. It provides clock/calendar functionality with alarm and leap year features, supporting HH:MM:SS time formats in both 12-hour and 24-hour modes, and YY-MM-DD-dd date formats. The device communicates via an I²C, 2-wire serial interface. It operates within a supply voltage range of 2.7V to 5.5V, with battery backup support from 1.8V to 5.5V. Timekeeping current consumption ranges from 10µA to 20µA at 2.7V to 5V. The component is housed in an 8-SOIC package (0.154", 3.90mm width) and is rated for operation between 0°C and 70°C.

Feature Summary

• I²C 2-Wire Serial Interface
• Alarm and Leap Year Support
• 12/24 Hour Time Format
• 8-SOIC Surface Mount Package

Applications

• Clock/Calendar Systems
• Real-Time Data Logging
• Battery-Backed Timing Applications

Procurement Notes

Verify the product status as obsolete or end-of-life before procurement planning. Confirm that the 8-SOIC package dimensions match the target PCB footprint. Ensure compatibility with the required operating temperature range of 0°C to 70°C for the specific application environment.

Selection Notes

Select this component when an I²C-connected RTC with low power consumption is required. Compare the 0°C to 70°C commercial temperature range against industrial requirements. Verify that the 2.7V to 5.5V supply voltage aligns with the system's power rails. Consider the 8-SOIC package size for space-constrained designs.

Part Context

The X1226V8Z belongs to the X1226 series of real-time clock ICs. It shares core functionalities with variants like the X1226S8Z and X1226V8I, differing primarily in package type (SOIC vs. TSSOP) and potentially temperature ratings. This part represents a standard solution for non-critical timing applications requiring simple I²C integration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate compatible RTCs with I²C interfaces and similar pinouts if direct replacement is necessary.