Nuvoton ARM Cortex-M NuMicro NUC472 Series, User Manual, Page: 30 / 37

MuMaker-PFM-NUC472
June 17, 2016 Page 30 of 37 Rev 1.00
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UMA
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USB OTG and Host 4.14
Figure 4-14 shows the USB OTG and Host circuits for the NUC472 series MCU.
Figure 4-14 USB OTG and Host Circuit
VCC
VDD5V
GND
N51
USB_D-
DP
USB_D-
USB_D+
USB_VBUS
USB_ID
USB_OC#
USB_OC#
DM
USB_D+
USB_PWR_EN
USB_PWR_EN
USB_VBUS
VDD5V
USB_OC#
GND
USB_ID
USB_VBUS
DP
DM
USB_ID
R19
4.7K
R0603
+
CT13
33uF/6.3V
TANT-A
R20
0
R0603
+
CT12
10uF/10V
TANT-A
CB14
0.1u
C0603
CB15
0.1u
C0603
R21
10K
R0603
JP1
HEADER 2.54 5X1 (NC)
1
2
3
4
5
CON2
USB MICRO-AB RECEP.
VBUS
1
D-
2
D+
3
GND
5
ID
4
Shield
6
Shield
7
Shield
8
Shield
9
U3
NCT3520U
OUT
1
GND
2
OC#
3
IN
5
EN/EN#
4
R22 0
R0603
VCC
VDD5V
USB_ID
USB_OC#
USB_D-
USB_D+
USB_VBUS
USB_PWR_EN
USB Host/Device
Off-page Connector
VDD5V
GND
VCC
USB OTG and HOST
NCT3520U
pin3(OC#) is
Open Drain Pin
NCT3520U Low Active
U14
USB A-ty pe receptacle
VBUS
1
D-
2
D+
3
GND
4
Shield
5
Shield
6
USB_VBUS
R47 33
R48 33
DM
DP