USB Control PCB Design

flux

Work done
  • U1 DP_P0 → J1 Pin_9
  • U1 DM_P0 → J1 Pin_10
  • Disconnected U1 VBUS from GND
  • U1 VBUS → J1 Pin_19
  • J1 Pin_3 → GND
  • Confirmed SSTX+/SSTX– on J1 Pin_1/Pin_2
  • Confirmed SSRX+/SSRX– on J1 Pin_4/Pin_5
  • Fetched DRC results: no unresolved airwires in the upstream USB path
Tasks I cannot do
  • Run an automated connectivity review (please run manually)
Success criteria review
  • ✅ USB2 DP/DM routed to J1 pins 9 and 10
  • ✅ VBUS isolated from GND and connected to J1 pin 19
  • ✅ J1 pin 3 tied to ground
  • ✅ SuperSpeed mappings unchanged and correct
  • ✅ No airwires in upstream USB path
Next step Proceed with schematic review to verify functional completeness before PCB layout.
sosaemi

sosaemi

the STM32 needs to connecto to the hub as one of the usb ports. Connect it.

flux

Net Connections to be added

Table

NetConnections
DP_P4U1:DP_P4, U2:PA12
DM_P4U1:DM_P4, U2:PA11
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MCU-Controlled 7-Port USB 3.0/2.0 Hub with Dual Extra USB 3.0 Downstream Ports, Per-Port 900mA Power Switches, High-Speed TVS/CMC Protection, Controlled Line Impedance (85Ω SS / 90Ω USB2), and ≥6.3A Total Current Output

Properties

mm
mm
mm
A
Diagram



  
    
  
  
    
  



Power_&_Protection


Hub_&_Control


Connectors


Added_Protection












Control (I²C/GPIO)

Enumerates As USB Device

USB2 D+/D−

USB2 D+/D−

USB2 D+/D−













5 V Supply
PTC Resettable Fuses
Per-Port Load Switches
Microcontroller
USB 3.0 Hub IC
USB3 Upstream Header
USB2 Header 1
USB2 Header 2
USB2 Header 3
TVS/CMC/Series R per Port 6
TVS/CMC/Series R per Port 7
A4
A5
Ω
mm
mm
Ω
mm
mm

Pricing & Availability

Distributor

Qty 1

Arrow

$35.59–$40.56

Digi-Key

$19.72–$19.94

LCSC

$64.73

Mouser

$43.67

TME

$12.24

Verical

$36.36–$50.96

Controls