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| STM32F405XX_13 Datasheet, PDF (172/185 Pages) STMicroelectronics – ARM Cortex-M4 32b MCU+FPU, 210DMIPS, up to 1MB Flash/192+4KB RAM, USB OTG HS/FS | |||
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Application block diagrams
STM32F405xx, STM32F407xx
Figure 88. USB controller configured in dual mode and used in full speed mode
VDD
5 V to VDD
voltage regulator (1)
GPIO
GPIO+IRQ
EN
Overcurrent
VDD
Current limiter 5 V Pwr
power switch(2)
STM32F4xx
PA9/PB13
OSC_IN
PA11/PB14
PA12/PB15
PA10/PB12
OSC_OUT
VBUS
DM
DP
ID(3)
VSS
MS19002V3
1. External voltage regulator only needed when building a VBUS powered device.
2.
The current limiter is required only if the application has to support
switch can be used if 5 V are available on the application board.
a
VBUS
powered
device.
A
basic
power
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.
172/185
DocID022152 Rev 4
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