RX-8803LC:UB3 PURE SN

Real Time Clock Overview

The RX-8803LC:UB3 PURE SN is a Real-Time Clock (RTC) manufactured by Epson Timing. It features an I2C bus interface and supports date formats including YY-MM-DD-dd and time formats of HH:MM:SS in 24-hour mode. The device operates within a supply voltage range of 1.6 V to 5.5 V and functions across a temperature range of -40°C to +85°C. It utilizes a VSON-12 package for surface mount installation and does not include a battery backup switching mechanism.

Real Time Clock Feature Summary

• I2C bus interface for digital communication
• Wide operating voltage range from 1.6 V to 5.5 V
• Extended industrial temperature range (-40°C to +85°C)
• VSON-12 surface mount package

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Consumer electronics with extended temperature requirements
• Data logging devices needing reliable RTC functionality

Real Time Clock Procurement Notes

Verify the specific suffix UB3 against official Epson documentation to confirm pinout and electrical characteristics, as suffixes often denote packaging or specific variant differences. Ensure compatibility with system voltage levels between 1.6 V and 5.5 V. Confirm that the I2C address and protocol match the host controller requirements before procurement.

Real Time Clock Selection Notes

Select this component when an I2C-connected RTC is required for applications operating in temperatures up to +85°C. The wide voltage input allows flexibility in power design. Verify that the VSON-12 package footprint fits the PCB layout constraints. Compare against similar models like the RX-8803LC:UB0 if different packaging or thermal ratings are needed.

Real Time Clock Part Context

This part belongs to the RX-8803LC series of real-time clocks from Epson Timing. The series is designed for general-purpose timekeeping applications using standard I2C interfaces. The LC designation typically indicates specific performance or packaging variations within the broader RX-8803 family.

Real Time Clock Replacement Considerations

The RX-8803SA:UB is listed as a discontinued alternative in some contexts, but direct substitution requires verification of package compatibility (SOP-14 vs VSON-12) and electrical parameters. Check Epson's official replacement guides for current equivalents.