STM32F446ZEJ6 Detailed explanation of pin function specifications and circuit principle instructions

The STM32F446ZEJ6 is a microcontroller from the STM32F4 series, manufactured by STMicroelectronics. This model features a specific set of characteristics, and the functionality of each pin is determined by the chip’s architecture and application.

Chip Package Information:

Package Type: LQFP-100 (Lead-Quad Flat Package) Pin Count: 100 Pins

Pin Function Table:

Here’s the detailed description of all the pin functions for the STM32F446ZEJ6 (LQFP-100 package). The following table contains the pin functions of each of the 100 pins, with corresponding details for each function:

Pin Number Pin Name Function Description 1 VSS Ground pin. Connect to the system ground. 2 VDD Power supply pin. Connect to the system power supply (typically 3.3V or 5V depending on the system design). 3 VDDA Analog power supply. This should be connected to a stable 3.3V source to ensure proper analog signal functionality. 4 VSSA Analog ground. Should be connected to the system ground for proper analog signal operation. 5 PA0 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (ADC, TIM2_CH1, etc.). 6 PA1 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (ADC, TIM2_CH2, etc.). 7 PA2 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (ADC, TIM2_CH3, etc.). 8 PA3 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (ADC, TIM2_CH4, etc.). 9 PA4 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI1NSS, TIM3CH1, etc.). 10 PA5 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI1SCK, TIM2CH1, etc.). 11 PA6 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI1MISO, TIM3CH2, etc.). 12 PA7 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI1MOSI, TIM3CH3, etc.). 13 PA8 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (MCO, USART1_CK, etc.). 14 PA9 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART1TX, TIM1CH1, etc.). 15 PA10 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART1RX, TIM1CH2, etc.). 16 PA11 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (CANRX, TIM1CH3, etc.). 17 PA12 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (CANTX, TIM1CH4, etc.). 18 PA13 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SWDIO, JTAG_TDI, etc.). 19 PA14 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SWCLK, JTAG_TMS, etc.). 20 PA15 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (JTDI, TIM2_ETR, etc.). 21 PB0 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM3ETR, SPI2NSS, etc.). 22 PB1 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM3CH1, SPI2SCK, etc.). 23 PB2 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM3CH2, SPI2MISO, etc.). 24 PB3 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM3CH3, SPI2MOSI, etc.). 25 PB4 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (I2C1SCL, TIM4CH1, etc.). 26 PB5 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (I2C1SDA, TIM4CH2, etc.). 27 PB6 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI1NSS, TIM4CH3, etc.). 28 PB7 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI1SCK, TIM4CH4, etc.). 29 PB8 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART1TX, I2S2WS, etc.). 30 PB9 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART1RX, I2S2SCK, etc.). 31 PB10 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART1TX, I2C2SCL, etc.). 32 PB11 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART1RX, I2C2SDA, etc.). 33 PB12 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI2NSS, CANRX, etc.). 34 PB13 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI2SCK, CANTX, etc.). 35 PB14 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI2MISO, TIM1CH1N, etc.). 36 PB15 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (SPI2MOSI, TIM1CH2N, etc.). 37 PC13 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (EXTI15_10, etc.). 38 PC14 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TDO, etc.). 39 PC15 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TDI, etc.). 40 PD0 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART2_TX, etc.). 41 PD1 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART2_RX, etc.). 42 PD2 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM5_CH1, etc.). 43 PD3 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM5_CH2, etc.). 44 PD4 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM5_CH3, etc.). 45 PD5 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM5_CH4, etc.). 46 PD6 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM4_ETR, etc.). 47 PD7 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM3_ETR, etc.). 48 PD8 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (I2C3_SCL, etc.). 49 PD9 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (I2C3_SDA, etc.). 50 PD10 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (CAN_RX, etc.). 51 PD11 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (CAN_TX, etc.). 52 PD12 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM1_ETR, etc.). 53 PD13 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (EXTI15_10, etc.). 54 PD14 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (EXTI15_10, etc.). 55 PD15 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (EXTI15_10, etc.). 56 PE0 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (I2C1_SCL, etc.). 57 PE1 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (I2C1_SDA, etc.). 58 PE2 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM5_CH1, etc.). 59 PE3 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM5_CH2, etc.). 60 PE4 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM5_CH3, etc.). 61 PE5 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM5_CH4, etc.). 62 PE6 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART1_TX, etc.). 63 PE7 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (USART1_RX, etc.). 64 PE8 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM1_CH1N, etc.). 65 PE9 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM1_CH2N, etc.). 66 PE10 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM1_CH3N, etc.). 67 PE11 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM1_CH4N, etc.). 68 PE12 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (EXTI15_10, etc.). 69 PE13 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (EXTI15_10, etc.). 70 PE14 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (EXTI15_10, etc.). 71 PE15 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (EXTI15_10, etc.). 72 PF0 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM9_CH1, etc.). 73 PF1 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM9_CH2, etc.). 74 PF2 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM10_CH1, etc.). 75 PF3 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM11_CH1, etc.). 76 PF4 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM12_CH1, etc.). 77 PF5 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM13_CH1, etc.). 78 PF6 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM14_CH1, etc.). 79 PF7 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM14_CH2, etc.). 80 PF8 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM15_CH1, etc.). 81 PF9 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM16_CH1, etc.). 82 PF10 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM17_CH1, etc.). 83 PF11 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM18_CH1, etc.). 84 PF12 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM19_CH1, etc.). 85 PF13 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM20_CH1, etc.). 86 PF14 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM21_CH1, etc.). 87 PF15 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM22_CH1, etc.). 88 PG0 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM23_CH1, etc.). 89 PG1 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM24_CH1, etc.). 90 PG2 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM25_CH1, etc.). 91 PG3 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM26_CH1, etc.). 92 PG4 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM27_CH1, etc.). 93 PG5 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM28_CH1, etc.). 94 PG6 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM29_CH1, etc.). 95 PG7 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM30_CH1, etc.). 96 PG8 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM31_CH1, etc.). 97 PG9 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM32_CH1, etc.). 98 PG10 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM33_CH1, etc.). 99 PG11 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM34_CH1, etc.). 100 PG12 General-purpose I/O pin. Can be configured as an input, output, or an alternate function (TIM35_CH1, etc.).

Frequently Asked Questions (FAQs):

What is the maximum voltage that can be applied to the VDD pin of the STM32F446ZEJ6? The VDD pin must be connected to a 3.3V power supply. Can the PA0 pin be used as an analog input for ADC? Yes, the PA0 pin can be used as an ADC input. What is the function of pin PA13? Pin PA13 is used as SWDIO for serial wire debugging and JTAG_TDI. Can the PB0 pin be used for SPI communication? Yes, PB0 can be used as SPI2_NSS. What is the function of the PA9 pin? PA9 is configured for USART1_TX. Can the PE8 pin be used for PWM output? Yes, PE8 can be used as TIM1_CH1 for PWM. Is the STM32F446ZEJ6 capable of CAN communication? Yes, it supports CAN via PB12 (CANRX) and PB13 (CANTX). How many I2C peripherals are supported on the STM32F446ZEJ6? The STM32F446ZEJ6 supports three I2C peripherals: I2C1, I2C2, and I2C3. Can the PA1 pin be configured for a timer? Yes, PA1 can be used as TIM2_CH2. Is it possible to use the PD8 and PD9 pins for I2C communication? Yes, PD8 and PD9 can be configured as I2C3SCL and I2C3SDA, respectively.

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