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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F050C4 датащи(PDF) 29 Page - STMicroelectronics |
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STM32F050C4 датащи(HTML) 29 Page - STMicroelectronics |
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29 / 97 page  STM32F050xx Pinouts and pin description Doc ID 023683 Rev 1 29/97 41 28 26 - PB5 I/O FT SPI1_MOSI, I2S1_SD, I2C1_SMBA, TIM16_BKIN, TIM3_CH2 42 29 27 - PB6 I/O FTf I2C1_SCL, USART1_TX, TIM16_CH1N 43 30 28 - PB7 I/O FTf I2C1_SDA, USART1_RX, TIM17_CH1N 44 31 1 1 BOOT0 I B Boot memory selection 45 32 - - PB8 I/O FTf I2C1_SCL, TIM16_CH1 46 - - - PB9 I/O FTf I2C1_SDA, IR_OUT, TIM17_CH1, EVENTOUT 47 0 - - VSS S Ground 48 1 - - VDD S Digital power supply 1. PC13, PC14 and PC15 are supplied through the power switch. Since the switch only sinks a limited amount of current (3 mA), the use of GPIO PC13 to PC15 in output mode is limited: - The speed should not exceed 2 MHz with a maximum load of 30 pF - these GPIOs must not be used as a current sources (e.g. to drive an LED). 2. After the first backup domain power-up, PC13, PC14 and PC15 operate as GPIOs. Their function then depends on the content of the Backup registers which is not reset by the main reset. For details on how to manage these GPIOs, refer to the Battery backup domain and BKP register description sections in the STM32F05xx reference manual. 3. This alternate feature is available on standard dies only. 4. After reset, these pins are configured as SWDAT and SWCLK alternate functions, and the internal pull-up on SWDAT pin and internal pull-down on SWCLK pin are activated. Table 8. Pin definitions (continued) Pin number Pin name (function after reset) Notes Pin functions Alternate functions Additional functions |
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