RX8900CEUCB

Real Time Clock Overview

The RX8900CEUCB is a Real Time Clock (RTC) IC from the Epson Timing RX8900CE series. It features an I2C bus interface for serial communication and supports date formats of YY-MM-DD-dd and time formats of HH:MM:SS in 24-hour mode. The device operates within a supply voltage range of 2.5 V to 5.5 V and includes backup switching capabilities. It is designed for surface mount installation in bulk packaging, with a standard factory package quantity of one unit per package.

Real Time Clock Feature Summary

• I2C Bus Interface for serial data communication
• Backup Switching capability for continuous operation
• Surface Mount Device (SMD/SMT) installation style
• Bulk packaging format

Real Time Clock Applications

• General purpose real-time clocking in embedded systems
• Data logging applications requiring precise time stamping
• Consumer electronics requiring calendar and time functions

Real Time Clock Procurement Notes

Verify the specific suffix 'UCB' against official Epson documentation to confirm exact packaging and handling specifications. The component is listed under the RX8900CE series. Confirm availability status as inventory levels may vary by distributor. Ensure compatibility with I2C bus voltage levels before integration into the target circuit design.

Real Time Clock Selection Notes

Select this model when a bulk-packaged RTC is required for prototyping or low-volume assembly. Compare against reel-packaged variants like the RX8900CE:UB3 if automated pick-and-place manufacturing is planned. Verify that the 10-SMD package dimensions fit the PCB footprint constraints. Check operating temperature ranges if the application exceeds standard commercial limits.

Real Time Clock Part Context

This part belongs to the Epson RX8900CE family of real-time clocks. It shares core functional characteristics with other suffixes in the series, differing primarily in packaging type and shipping configuration. The UC suffix typically denotes specific packaging variations within the broader CE product line.

Real Time Clock Replacement Considerations

Direct pin-compatible replacements within the same series include RX8900CE:UB3 and RX8900CE:UB6. These alternatives offer identical electrical performance but differ in packaging (Reel/Cut Tape vs. Bulk). Verify that the change in packaging does not impact existing assembly processes.