X1227S8IZ

Overview

The X1227S8IZ 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 time formats of HH:MM:SS in both 12-hour and 24-hour modes, and date formats of YY-MM-DD-dd. Key features include an alarm function, leap year compensation, a watchdog timer, and a monitor. It operates within a supply voltage range of 2.7V to 5.5V, with a maximum current consumption of 10µA to 20µA at these voltages. The component is housed in an 8-SOIC package (0.154", 3.90mm width) and functions across a temperature range of -40°C to 85°C.

Feature Summary

• Integrated Real-Time Clock/Calendar with I2C interface
• Supports 12/24 hour time and YY-MM-DD-dd date formats
• Includes alarm, leap year, watchdog timer, and monitor features
• Operates on 2.7V to 5.5V supply with low power consumption

Applications

• Systems requiring precise timekeeping via I2C bus
• Devices needing alarm and watchdog timer functionalities
• Industrial or consumer electronics operating in wide temperature ranges

Procurement Notes

Verify the specific suffix 'IZ' against official Renesas documentation to confirm package type and material compliance. Check for End-of-Life (EOL) status as related models in this series may be discontinued. Confirm availability through authorized distributors only, as market availability varies significantly for legacy components.

Selection Notes

Select this model if an 8-pin SOIC package is required for space-constrained designs. Ensure the system voltage aligns with the 2.7V to 5.5V operating range. Verify that the I2C interface speed matches the host controller's capabilities. Consider the -40°C to 85°C temperature range suitability for the intended environment.

Part Context

This component belongs to the X1227 series of RTC ICs from Renesas. It shares functional similarities with other models like the X1226 and X1228 but differs in package options and specific feature sets such as the inclusion of a watchdog timer. It is designed for applications requiring non-volatile timekeeping with minimal external components.