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STM32F427AI 数据表(PDF) 228 Page - STMicroelectronics |
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STM32F427AI 数据表(HTML) 228 Page - STMicroelectronics |
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228 / 240 page  Application block diagrams STM32F427xx STM32F429xx 228/240 DS9405 Rev 12 Figure 97. USB controller configured in dual mode and used in full speed mode 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 a VBUS 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. STM32F4xx VDD VBUS DP VSS PA9/PB13 PA12/PB15 PA11/PB14 DM GPIO+IRQ GPIO EN Overcurrent 5 V Pwr 5 V to VDD voltage regulator (1) VDD ID (3) PA10/PB12 OSC_IN OSC_OUT MS19002V3 Current limiter power switch(2) |
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