R01UH0823EJ0100 Rev.1.00
Page 917 of 1823
Jul 31, 2019
RX23W Group
32. USB 2.0 Host/Function Module (USBc)
shows an example of host connection of the USB connector.
Figure 32.5
Sample Host Connection of USB Connector
External connection
MCU
Power
supply IC
for non-
OTG USB
host
*1
VBUS
USB0_DP
USB0_DM
USB
A connector
D+
D–
VBUS
USB0_VBUSEN
USB
transceiver
USB0_OVRCURA
Z
DRV
Z
DRV
R
PD
R
PD
Z
DRV
: Output impedance
R
PD
: Pull-down resistor
At least 120 µF
*1
Note 1. When Battery Charging Spec. Rev.1.2 is to be
supported, ensure that the power supply IC and the
VBUS wiring width are enough for at least 1.5 A.