RX-4803LC:UCB PURE SN

Real Time Clock Overview

The RX-4803LC:UCB PURE SN is a Real Time Clock (RTC) manufactured by Epson Timing. It operates within a supply voltage range of 1.6 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. The device utilizes a Serial 2-Wire I2C bus interface for communication. It provides date formatting in YY-MM-DD-dd structure and time formatting in HH:MM:SS (24-hour) format. The component does not feature battery backup switching.

Real Time Clock Feature Summary

• I2C Bus Interface
• 1.6 V to 5.5 V Supply Voltage
• -40°C to +85°C Operating Temperature

Real Time Clock Applications

• General purpose real-time clocking in embedded systems
• Data logging applications requiring precise timekeeping
• Consumer electronics with low power requirements

Real Time Clock Procurement Notes

Verify the exact suffix configuration against official Epson documentation, as variations such as UCB, UC, or UB may denote differences in packaging or specific electrical characteristics. Confirm availability through authorized distributors, noting that some variants may have restricted supply status or long production cycles. Ensure the selected part number matches the required package type and tape/reel specifications for the manufacturing process.

Real Time Clock Selection Notes

Select this RTC when an I2C interface is preferred over SPI for system integration. Consider the +/-5.0 PPM accuracy typical for the RX-8803LC series if applicable to similar models, though specific accuracy for this exact suffix should be confirmed in the datasheet. Evaluate the 1.6 V minimum supply voltage for compatibility with low-voltage logic levels in the target application.

Real Time Clock Part Context

This component belongs to the RX-8803LC series of Real Time Clocks from Epson Timing. The series is designed for applications requiring accurate timekeeping with minimal power consumption. Variants within the series differ primarily in packaging options (such as BULK, CUT TAPE, or REEL) and potentially slight variations in operational parameters like accuracy or temperature range, necessitating careful selection based on specific design constraints.

Real Time Clock Replacement Considerations

Direct replacements must match the I2C interface, pinout, and voltage range. Verify if alternative RTCs support the same register map for software compatibility. Check if the replacement offers similar accuracy and temperature stability. Consult Epson's official substitution guides for validated cross-references.