Renesas RX and RA Families: Design Guide for Main Clock Circuits and Sub-Clock Circuits

This application note from Renesas provides essential guidance for engineers working with the Renesas RX and RA microcontroller families. It focuses on the critical aspects of selecting and implementing external resonators for both main clock and sub-clock circuits.

The document details:

• Recommended resonators and evaluation results from leading manufacturers.
• Methods for evaluating oscillator circuit performance, including negative resistance and oscillation amplitude.
• Key considerations for board design to ensure stable oscillation, covering routing, grounding, and component placement.
• Procedures for measuring and calculating external resonator frequency accuracy.

This guide aims to help designers achieve optimal clock circuit performance and reliability for their embedded systems. For more information, visit Renesas Electronics.