RX8900CE:UBB

Real Time Clock Overview

The RX8900CE:UBB is a Real Time Clock (RTC) manufactured by Epson Timing, belonging to the RX8900CE series. It features an I2C bus interface for serial communication and supports a date format of YY-MM-DD-dd alongside a 24-hour time format (HH:MM:SS). The device operates within a supply voltage range of 2.5 V to 5.5 V and functions reliably across an extended temperature range from -40°C to +85°C. Key specifications include backup switching capabilities and a 10-pin surface mount package configuration.

Real Time Clock Feature Summary

• I2C Bus Interface for digital communication
• Backup Switching functionality for continuous operation
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.5 V to 5.5 V

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Consumer electronics with battery backup requirements
• Automotive embedded systems operating in extreme temperatures

Real Time Clock Procurement Notes

Verify the specific suffix 'UBB' indicates bulk packaging rather than reel or cut tape formats when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the 10-pin SMD footprint matches the target PCB layout constraints.

Real Time Clock Selection Notes

Select this component if I2C connectivity and wide temperature tolerance are required. Compare against variants like RX8900CE:UB0 or RX8900CE:UB6 which share identical electrical characteristics but differ in standard shipping packaging quantities. Validate that the 2.5V minimum voltage aligns with the system power rail.

Real Time Clock Part Context

This part is a member of the Epson RX8900CE family of real-time clocks. Variants within this series typically share core timing and interface specifications, with differences primarily defined by the final alphanumeric suffixes indicating packaging type and specific manufacturing lot configurations.

Real Time Clock Replacement Considerations

RX8900CE:UB0 and RX8900CE:UB6 are electrically compatible alternatives within the same series. These substitutes offer identical I2C and voltage specifications but utilize different standard packaging methods such as reels or cut tapes instead of bulk.