RX4901CE XB A03

Real Time Clock Overview

The RX4901CE XB A03 is a Real Time Clock (RTC) module manufactured by Epson Timing. It features an I2C bus interface and supports a date format of YY-MM-DD-dd and a time format of HH:MM:SS in 24-hour mode. The device includes 256 bytes of storage capacity and utilizes a backup switching mechanism. It operates within a supply voltage range of 1.6 V to 5.5 V and functions at temperatures between -40°C and +105°C. The component is designed for surface mount installation.

Real Time Clock Feature Summary

• Integrated real-time clock functionality with calendar capabilities
• I2C bus interface for digital communication
• Backup switching support for continuous operation
• Wide operating temperature range suitability

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Data logging equipment needing timestamp accuracy
• Embedded devices with limited power availability

Real Time Clock Procurement Notes

Verify the specific suffix 'XB A03' against official Epson documentation to confirm pinout, package dimensions, and electrical characteristics. Ensure compatibility with system voltage levels and I2C address configurations before integration. Cross-reference with current datasheets for any revisions or obsolescence notices.

Real Time Clock Selection Notes

Select this component when a compact RTC with I2C interface and wide temperature tolerance is required. Consider the 256-byte storage and backup switching features for applications needing data retention during power loss. Verify that the SMD package fits the PCB layout constraints.

Real Time Clock Part Context

This part belongs to the RX4901CE series of real-time clocks from Epson Timing. The series is characterized by low power consumption and high accuracy. The RX4901CE models are designed for various electronic applications requiring reliable time and date tracking in a small form factor.

Real Time Clock Replacement Considerations

Consult Epson's official substitution guide for compatible alternatives. Verify pin-to-pin compatibility and electrical specifications before replacing with other RTC modules.