RX-4801SA:UB0 PURE SN

Real Time Clock Overview

The RX-4801SA:UB0 PURE SN is a Real-Time Clock (RTC) integrated circuit manufactured by Epson Timing. It features an SPI bus interface and supports YY-MM-DD-dd date formats along with HH:MM:SS time formats in both 12-hour and 24-hour modes. 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. Packaged in a 14-SOP format, it includes alarm and leap year capabilities without battery backup switching.

Real Time Clock Feature Summary

• SPI bus interface for digital communication
• Operates on 1.6 V to 5.5 V power supply
• Includes alarm and leap year functionality
• Available in 14-SOP surface mount package

Real Time Clock Applications

• General purpose clock/calendar systems
• Industrial control units requiring precise timing
• Consumer electronics with real-time tracking needs

Real Time Clock Procurement Notes

Verify current availability status as the component may be subject to limited supply or discontinuation notices. Confirm that the specific suffix :UB0 matches the required pinout and electrical characteristics for the target design, as ordering suffixes can indicate variations in packaging or specifications.

Real Time Clock Selection Notes

Select this component when an SPI interface is preferred over I2C for RTC applications. Ensure the system voltage falls within the 1.6 V to 5.5 V range. Consider the 14-SOP package size for PCB layout constraints. Verify if the absence of a battery backup switch aligns with the application's power loss requirements.

Real Time Clock Part Context

This part belongs to the RX-4801SA series from Epson Timing, which offers various RTC solutions with different interfaces and packages. The RX-4801SA:UB0 specifically denotes the SPI variant in a 14-SOP package. Other variants in the family may include I2C interfaces or different package types such as SOP-8.

Real Time Clock Replacement Considerations

Check for direct substitutes within the RX-4801SA series or compatible SPI RTCs from other manufacturers. Ensure pin compatibility and electrical parameter alignment before substitution.