Renesas RA6M5 User Manual

Renesas RA Family EK-RA6M5 v1 – User's Manual
R20UT4829EG0100 Rev. 1.00 Page 31 of 34
Mar.15.21
7.2 MCU and USB Current Measurement
Included in the Native Pin Access area are current measurement resistors and test points to measure the
MCU USB controller current and the MCU core power current.
The EK-RA6M5 board provides precision 5 mΩ resistors (Vishay, part number WSLP08055L000FEA18) for
current measurement of the main 3.3 V MCU power and the 3.3 V USB MCU power. Measure the voltage
drop across these resistors and use Ohm’s Law to calculate the current. For convenience, TP1 and TP3 are
provided to measure the main 3.3 V MCU power, and TP2 and TP4 are provided to measure the 3.3 V USB
MCU power. See Figure 29 for the location of TP1 and TP3.
Figure 27. RA USB Current Measurement Circuit
Figure 28. RA +3.3 V Current Measurement Circuit
Figure 29. RA MCU Current Measurement

Renesas RA6M5 Specifications

General

Brand	Renesas
Model	RA6M5
Category	Microcontrollers
Language	English