System
architecture
UM2191
34/55
DocID030479 Rev 2
USB2.0 bridge between port 0 and port 1
Figure 29: P-NUCLEO-USB002 expansion board: JP100 and JP101 connectors for USB 2.0
configurations
2.3.8
P-NUCLEO-USB002 expansion board: ESD protections
The P-NUCLEO-USB002 expansion board features USB protections on:
1.
V
BUS
: each port is protected by an SMM4F24A Transil, designed to protect sensitive
equipment against electro-static discharges
2.
CCx lines: each CC line is connected to an ESDALC5-1BF4 providing low clamping,
low capacitance, bidirectional, single line ESD protection
3.
USB2.0 pins: the USB pins of both ports are connected to a USBLC6-2 ESD
protection for high speed interfaces (USB 2.0, Ethernet links and video lines) with high
integrity while still protecting sensitive chips against the worst ESD strikes