X1227V8Z-2.7

Overview

The X1227V8Z-2.7 is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation, designed for precise timekeeping in electronic systems. It features an I2C interface and supports both 12-hour and 24-hour time formats alongside a YY-MM-DD-dd date format. The device includes alarm functions, leap year compensation, a watchdog timer, and a monitor timer. It operates within a supply voltage range of 2.7V to 5.5V and is housed in an 8-SOIC package.

Feature Summary

• Integrated real-time clock with calendar functionality supporting leap year adjustments
• Includes alarm capabilities, watchdog timer, and system monitor timer
• Communicates via standard I2C two-wire serial interface

Applications

• Data logging systems requiring accurate timestamping
• Battery-powered consumer electronics needing low-power timekeeping
• Industrial control units utilizing watchdog and monitor timers for reliability

Procurement Notes

Verify the specific suffix 'V8' against official Renesas documentation to confirm pinout and package variations, as generic listings may not reflect exact hardware revisions. Confirm availability status as older RTC models often face end-of-life transitions. Ensure compatibility with existing I2C bus voltages before integration.

Selection Notes

Select this component when a dedicated RTC with built-in safety timers is required without external microcontroller overhead. The 8-SOIC package suits space-constrained designs. Verify that the I2C address and voltage levels match the host system requirements. Consider power consumption specifications if battery life is critical.

Part Context

This part belongs to the Renesas X1227 series of real-time clocks, which are widely used for maintaining system time in embedded applications. The series is known for integrating non-volatile memory support and multiple timer functions into a compact form factor, simplifying design for devices requiring persistent time tracking.

Replacement Considerations

Consult Renesas official substitution guides for direct replacements. Generic RTCs may lack the specific combination of watchdog and monitor timers found in this model.