RX-4803LC:UA3 PURE SN

Real Time Clock Overview

The RX-4803LC:UA3 PURE SN is a digital real-time clock module manufactured by Epson Timing. It provides stable clock signals for control circuit boards, featuring high frequency stability with a tolerance of ±3.4 ppm across the -40°C to +85°C operating temperature range. The device includes a 1/100s precision time register with a capture buffer and supports synchronization with external second pulse (1PPS) signals. It utilizes serial communication for interface connectivity and is designed for applications requiring precise timing in harsh environments.

Real Time Clock Feature Summary

• High frequency stability of ±3.4 ppm over -40°C to +85°C
• Integrated 1/100s precision time register with capture buffer
• Supports external 1PPS signal synchronization
• Serial communication interface for register configuration

Real Time Clock Applications

• Automotive electronics systems
• Industrial control equipment
• Medical devices
• Energy and petrochemical monitoring

Real Time Clock Part Context

This component belongs to the RX-4803SA series of digital real-time clock modules from Epson Timing. The series is engineered for scenarios demanding exceptional frequency stability under significant temperature variations. The UA3 suffix denotes specific performance characteristics within this family, tailored for industrial-grade reliability.

Real Time Clock Replacement Considerations

Direct substitutes within the RX-4803SA series include models such as RX-4803SA:UA0, :UA1, :UA2, :UB, :UC, and :AA. Selection among these variants depends on matching the required frequency tolerance and package specifications for the specific application environment.