RX-4803LC:UC3 PURE SN

Real Time Clock Overview

The RX-4803LC:UC3 PURE SN is a Real Time Clock (RTC) IC from the Epson RX-4803SA series, manufactured by Epson Timing. It operates within a supply voltage range of 1.6V to 5.5V and features an I2C interface for communication. The device provides clock/calendar functions with HH:MM:SS time format and YY-MM-DD-dd date format. It supports a maximum current consumption of 1.4µA to 1.5µA at 3V to 5V during timing operations. The component is designed for surface mount installation in a 14-SOP package and functions reliably across a temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• High stability frequency characteristics with ±3.4ppm tolerance over the operating temperature range
• Integrated 1/100s precision time register with capture buffer for accurate timekeeping
• Supports external second pulse (1PPS) signal synchronization for GPS applications
• Includes alarm, timer, and calendar functions with leap year compensation

Real Time Clock Applications

• Industrial control systems requiring precise time synchronization
• Medical devices needing stable real-time clock signals
• Automotive electronics operating in wide temperature environments
• Energy and petrochemical monitoring equipment

Real Time Clock Procurement Notes

Verify the specific suffix UC3 against official Epson documentation to confirm interface and pinout compatibility. Check RoHS compliance status and moisture sensitivity level before integration. Confirm availability through authorized distributors as stock may be limited. Ensure the 14-SOP package dimensions match the target PCB footprint.

Real Time Clock Selection Notes

Select this model when high frequency stability is critical for the application. The I2C interface suits designs prioritizing fewer connection lines. Consider the 1/100s register if sub-second precision is required. Compare power consumption requirements against other RTC options to ensure it fits the system's energy budget.

Real Time Clock Part Context

This component belongs to the RX-4803SA family of digital real-time clock modules. The series is engineered for applications demanding superior frequency stability compared to standard analog RTCs. The LC variant typically denotes specific packaging or material specifications within the broader product line.

Real Time Clock Replacement Considerations

Check for direct substitutes within the RX-4803SA series such as UA or UB variants if interface differences are acceptable. Verify pin-to-pin compatibility with alternative RTCs from other manufacturers before replacement.