X1227V8Z-2.7A

Overview

The X1227V8Z-2.7A is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation, designed for precise timekeeping in electronic systems. It features an I2C serial interface and supports both 12-hour and 24-hour time formats alongside a YY-MM-DD-dd date format. The device operates within a supply voltage range of 2.7V to 5.5V and includes functional features such as alarms, leap year compensation, a watchdog timer, and a monitor. It is housed in an 8-SOIC package with a width of 3.90mm and is rated for industrial operating temperatures ranging from -40°C to 85°C.

Feature Summary

• Integrated Real-Time Clock with Calendar functionality supporting HH:MM:SS and YY-MM-DD-dd formats
• I2C, 2-wire serial communication interface for system connectivity
• Built-in alarm capability, leap year compensation, watchdog timer, and power monitor
• Operates on a single supply voltage of 2.7V to 5.5V with low current consumption

Applications

• Industrial control systems requiring accurate time stamping
• Consumer electronics utilizing battery-backed timekeeping
• Embedded devices needing watchdog timer protection
• Data logging equipment requiring calendar functions

Procurement Notes

Verify the specific suffix 'V8Z' against official Renesas documentation to confirm pinout compatibility and RoHS status, as variations exist within the X1227 family. Confirm availability status, as this component may be subject to discontinuation or lifecycle changes. Ensure the selected package matches the 8-SOIC footprint requirements for the target PCB design.

Selection Notes

Select this component when an I2C-based RTC with integrated watchdog and monitoring features is required. Ensure the system voltage falls within the 2.7V to 5.5V range. Verify that the 8-SOIC package dimensions fit the mechanical constraints. Compare against the X1227S8IZ variant if different pin configurations or temperature ranges are needed.

Part Context

This part belongs to the X1227 series of Real-Time Clocks from Renesas. It shares core functionalities with other variants like the X1227S8IZ but differs in package type and specific electrical characteristics defined by the suffix. The series is designed to provide reliable timekeeping with minimal external components.

Replacement Considerations

Direct replacements should be sought within the X1227 family, such as the X1227S8IZ, ensuring package and feature parity. Cross-vendor alternatives must match the I2C interface, voltage range, and package dimensions. Verify that any substitute supports the same alarm and watchdog timer configurations.