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STM32F217VG 数据表(PDF) 54 Page - STMicroelectronics |
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STM32F217VG 数据表(HTML) 54 Page - STMicroelectronics |
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54 / 175 page ![]() Pinouts and pin description STM32F21xxx 54/175 DocID17050 Rev 9 63 - - - - VSS S -99 143 171 C6 RFU (7) 64 100 144 172 C5 VDD S - - - 173 D4 PI4 I/O FT TIM8_BKIN, DCMI_D5, EVENTOUT - - - 174 C4 PI5 I/O FT TIM8_CH1, DCMI_VSYNC, EVENTOUT - - - 175 C3 PI6 I/O FT TIM8_CH2, DCMI_D6, EVENTOUT - - - 176 C2 PI7 I/O FT TIM8_CH3, DCMI_D7, EVENTOUT 1. Function availability depends on the chosen device. 2. PC13, PC14, PC15 and PI8 are supplied through the power switch. Since the switch only sinks a limited amount of current (3 mA), the use of GPIOs PC13 to PC15 and PI8 in output mode is limited: the speed should not exceed 2 MHz with a maximum load of 30 pF and these I/Os must not be used as a current source (e.g. to drive an LED). 3. Main function after the first backup domain power-up. Later on, it depends on the contents of the RTC registers even after reset (because these registers are not reset by the main reset). For details on how to manage these I/Os, refer to the RTC register description sections in the STM32F20x and STM32F21x reference manual, available from the STMicroelectronics website: www.st.com. 4. FT = 5 V tolerant except when in analog mode or oscillator mode (for PC14, PC15, PH0 and PH1). 5. If the device is delivered in an UFBGA176 package and if the REGOFF pin is set to VDD (Regulator OFF), then PA0 is used as an internal Reset (active low). 6. FSMC_NL pin is also named FSMC_NADV on memory devices. 7. RFU means “reserved for future use”. This pin can be tied to VDD,VSS or left unconnected. Table 7. STM32F21x pin and ball definitions (continued) Pins Pin name (function after reset)(1) Alternate functions Additional functions Table 8. FSMC pin definition Pins FSMC LQFP100 CF NOR/PSRAM/S RAM NOR/PSRAM Mux NAND 16 bit PE2 A23 A23 Yes PE3 A19 A19 Yes PE4 A20 A20 Yes PE5 A21 A21 Yes PE6 A22 A22 Yes PF0 A0 A0 - |
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