X1227S8IZ-2.7A

Overview

The X1227S8IZ-2.7A is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation, housed in an 8-SOIC surface-mount package. It operates within a supply voltage range of 2.7V to 5.5V and supports battery backup from 1.8V to 5.5V. The device communicates via I2C or 2-wire serial interfaces. Key electrical characteristics include a maximum current consumption of 10µA to 20µA at 2.7V to 5V. It features time formats for HH:MM:SS (12/24-hour) and date formats for YY-MM-DD-dd.

Feature Summary

• Integrated Real-Time Clock with Calendar functionality
• Supports I2C and 2-Wire Serial interfaces
• Includes Alarm, Leap Year, Monitor, and Watchdog Timer features

Applications

• Systems requiring precise timekeeping and calendar tracking
• Devices utilizing I2C communication protocols
• Applications needing low-power RTC operation with battery backup

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'A' against official datasheets to ensure correct revision and pinout compatibility. Check for End-of-Life (EOL) status and lead times due to potential obsolescence.

Selection Notes

Select this component when an I2C-compatible RTC with watchdog timer capabilities is required in an 8-SOIC package. Ensure the system voltage aligns with the 2.7V to 5.5V operating range. Consider the 1.8V minimum battery voltage for backup scenarios.

Part Context

This part belongs to the X1227 series of real-time clocks from Renesas. It is designed for applications needing accurate timekeeping with minimal power consumption. The 8-SOIC package offers a compact solution for space-constrained designs.

Replacement Considerations

Consult official substitution guides for compatible RTCs with similar interface and package requirements. Verify functional equivalence regarding voltage ranges and feature sets before replacement.