In the context of MIPI I3C, RDSON refers to the On-Resistance of the MOSFETs (transistors) used in the bus's I/O drivers or in passive level translators/switches.

Because I3C operates at much higher speeds (up to 12.5 MHz) than traditional I2C, RDSON becomes a critical factor for signal integrity, power consumption, and backward compatibility.

This blog introduces Based on the Tower I3C Host Adapter Pro+ test chip RDSON:

Based on the Tower I3C Host Adapter Pro+ test chip RDSON (1)