Datasheet

Table Of Contents
DocID022152 Rev 8 187/202
STM32F405xx, STM32F407xx Application block diagrams
Figure 95. USB controller configured in dual mode and used in full speed mode
1. External voltage regulator only needed when building a V
BUS
powered device.
2. The current limiter is required only if the application has to support a V
BUS
powered device. A basic power
switch can be used if 5 V are available on the application board.
3. The ID pin is required in dual role only.
4. The same application can be developed using the OTG HS in FS mode to achieve enhanced performance
thanks to the large Rx/Tx FIFO and to a dedicated DMA controller.
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