X1226V8

Real Time Clock Overview

The X1226V8 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 12/24 hour modes and YY-MM-DD-dd date formats. It includes alarm and leap year features. Supply voltage ranges from 2.7V to 5.5V, with battery supply from 1.8V to 5.5V. Current consumption is 10µA to 20µA at 2.7V to 5V. Operating temperature is -40°C to 85°C. Package is 8-TSSOP.

Real Time Clock Feature Summary

• Provides accurate real-time clock and calendar tracking via I²C interface
• Supports configurable 12/24 hour time formats and standard date structures
• Includes programmable alarm functions and automatic leap year correction

Real Time Clock Applications

• Data logging systems requiring precise timestamping
• Industrial control equipment needing time synchronization
• Consumer electronics with calendar-based features

Real Time Clock Procurement Notes

Verify component authenticity through authorized distributors due to obsolete status. Confirm package integrity for 8-TSSOP surface mount installation. Check supply voltage compatibility within specified ranges. Ensure environmental conditions meet operating temperature specifications. Validate interface signals against I²C standards before integration.

Real Time Clock Selection Notes

Consider the X1226V8 for applications requiring reliable timekeeping with low power consumption. Evaluate interface compatibility with host microcontrollers supporting I²C protocols. Assess physical space constraints for the 8-TSSOP package. Review power supply requirements against available system voltages. Compare performance needs with alternative RTC solutions if availability is critical.

Real Time Clock Part Context

The X1226V8 belongs to the X1226 series of real-time clock ICs from Renesas. It shares functional similarities with other models in the family but differs in package type. The V8 suffix indicates the 8-TSSOP packaging variant. This component serves as a dedicated timing solution for embedded systems requiring non-volatile time data retention.

Real Time Clock Replacement Considerations

ISL12026IBZ-T is a confirmed substitute part number from Renesas Electronics Corporation.