基于STM32F103ZE数据手册整理 | LQFP144封装文档说明本文档整理了STM32F103ZELQFP144封装的完整引脚定义。该芯片拥有144个引脚其中112个GPIO引脚分为GPIOA~GPIOG七组每组16个其余为电源、时钟、复位等专用引脚。⚠️重要提示本表格基于数据手册整理实际设计请以ST官方最新发布的《STM32F103ZE数据手册》为准。5V容忍FT引脚可与5V逻辑器件直接连接但需注意电平匹配。一、电源与系统引脚19个引脚编号引脚名称类型FT功能说明19, 32, 48, 64, 77, 92, 108, 121VDDS-数字电源3.3V共8个引脚18, 31, 47, 63, 76, 91, 107, 120VSSS-数字地共8个引脚35VDDAS-模拟电源3.3V为ADC/DAC供电34VSSAS-模拟地17VBATS-备用电池电源RTC和备份寄存器供电138BOOT0I-启动模式选择引脚配合BOOT1供电设计建议VDDA/VSSA建议通过磁珠与VDD/VSS隔离以减少数字噪声对模拟电路的干扰。二、时钟与复位引脚6个引脚编号引脚名称类型FT功能说明23OSC_INI-主时钟晶振输入4-16MHz24OSC_OUTO-主时钟晶振输出27OSC32_INI-RTC时钟晶振输入32.768kHz28OSC32_OUTO-RTC时钟晶振输出138NRSTI/O-硬件复位引脚低电平有效三、GPIOA端口PA0-PA1516个引脚引脚编号引脚名称类型FT主要复用功能重映射功能15PA0I/OFTTIM2_CH1/ETR, USART2_CTS, ADC123_IN0, WKUPTIM5_CH1, USART2_CTS16PA1I/OFTTIM2_CH2, USART2_RTS, ADC123_IN1TIM5_CH220PA2I/OFTTIM2_CH3, USART2_TX, ADC123_IN2TIM5_CH321PA3I/OFTTIM2_CH4, USART2_RX, ADC123_IN3TIM5_CH422PA4I/OFTSPI1_NSS, USART2_CK, ADC12_IN4SPI1_NSS25PA5I/OFTSPI1_SCK, ADC12_IN5-26PA6I/OFTSPI1_MISO, TIM3_CH1, ADC12_IN6TIM1_BKIN, TIM8_CH129PA7I/OFTSPI1_MOSI, TIM3_CH2, ADC12_IN7TIM1_CH1N, TIM8_CH237PA8I/OFTUSART1_CK, TIM1_CH1, MCO-38PA9I/OFTUSART1_TX, TIM1_CH2I2C1_SCL/TIM1_BKIN39PA10I/OFTUSART1_RX, TIM1_CH3I2C1_SDA/TIM1_CH340PA11I/OFTUSART1_CTS, CAN_RX, USBDM, TIM1_CH4-41PA12I/OFTUSART1_RTS, CAN_TX, USBDP, TIM1_ETR-42PA13I/OFTJTMS/SWDIO调试接口-43PA14I/OFTJTCK/SWCLK调试接口-44PA15I/OFTJTDI调试接口, SPI1_NSS, SPI3_NSSTIM2_CH1_ETR, USART3_TX四、GPIOB端口PB0-PB1516个引脚引脚编号引脚名称类型FT主要复用功能重映射功能45PB0I/OFTTIM3_CH3, ADC12_IN8TIM1_CH2N, TIM8_CH2N46PB1I/OFTTIM3_CH4, ADC12_IN9TIM1_CH3N, TIM8_CH3N49PB2I/O-BOOT1, TIM3_ETR-50PB3I/OFTJTDO, SPI1_SCK, SPI3_SCK/I2S3_CKTIM2_CH2, TIM8_CH1N51PB4I/OFTNJTRST, SPI1_MISO, SPI3_MISOTIM3_CH1, TIM8_CH2N52PB5I/OFTI2C1_SMBA, SPI1_MOSI, SPI3_MOSI/I2S3_SDTIM3_CH2, TIM8_CH3N53PB6I/OFTI2C1_SCL, TIM4_CH1USART1_TX54PB7I/OFTI2C1_SDA, FSMC_NADV, TIM4_CH2USART1_RX85PB8I/OFTTIM4_CH3, SDIO_D4I2C1_SCL, CAN_RX86PB9I/OFTTIM4_CH4, SDIO_D5I2C1_SDA, CAN_TX87PB10I/OFTI2C2_SCL, USART3_TX, TIM2_CH3-88PB11I/OFTI2C2_SDA, USART3_RX, TIM2_CH4-89PB12I/OFTSPI2_NSS, I2C2_SMBA, USART3_CK, TIM1_BKINFSMC_NCE, CAN2_RX90PB13I/OFTSPI2_SCK, USART3_CTS, TIM1_CH1NFSMC_NCE, CAN2_TX95PB14I/OFTSPI2_MISO, USART3_RTS, TIM1_CH2NFSMC_D0, TIM8_CH1N96PB15I/OFTSPI2_MOSI, TIM1_CH3NFSMC_D1, TIM8_CH2N五、GPIOC端口PC0-PC1516个引脚引脚编号引脚名称类型FT主要复用功能重映射功能4PC0I/OFTADC123_IN10-5PC1I/OFTADC123_IN11-6PC2I/OFTADC123_IN12-7PC3I/OFTADC123_IN13-8PC4I/OFTADC12_IN14-9PC5I/OFTADC12_IN15-10PC6I/OFTI2S2_MCK, TIM3_CH1, SDIO_D6TIM8_CH111PC7I/OFTI2S3_MCK, TIM3_CH2, SDIO_D7TIM8_CH212PC8I/OFTSDIO_D0, TIM3_CH3TIM8_CH313PC9I/OFTSDIO_D1, TIM3_CH4TIM8_CH414PC10I/OFTSDIO_D2, UART4_TX-33PC11I/OFTSDIO_D3, UART4_RX-36PC12I/OFTSDIO_CK, UART5_TX-55PC13I/O-TAMPER-RTC, RTC_AF1, WKUP2-56PC14I/O-OSC32_IN可作GPIO-57PC15I/O-OSC32_OUT可作GPIO-⚠️PC13/PC14/PC15限制这三个引脚由备份电源域供电输出驱动能力受限约3mA。建议不要用于驱动LED等大电流负载速度不超过2MHz。六、GPIOD端口PD0-PD1516个引脚引脚编号引脚名称类型FT主要复用功能重映射功能58PD0I/OFTFSMC_D2, CAN_RXOSC_IN部分封装59PD1I/OFTFSMC_D3, CAN_TXOSC_OUT部分封装60PD2I/OFTTIM3_ETR, USART3_RTS, SDIO_CMD-61PD3I/OFTFSMC_CLK, SPI2_SCK, USART2_CTS-62PD4I/OFTFSMC_NOE, USART2_RTS-63PD5I/OFTFSMC_NWE, USART2_TX-64PD6I/OFTFSMC_NWAIT, USART2_RX-65PD7I/OFTFSMC_NE1, USART2_CK-78PD8I/OFTFSMC_D13, USART3_TX-79PD9I/OFTFSMC_D14, USART3_RX-80PD10I/OFTFSMC_D15, USART3_CK-81PD11I/OFTFSMC_A16, USART3_CTS-82PD12I/OFTFSMC_A17, TIM4_CH1, USART3_RTS-83PD13I/OFTFSMC_A18, TIM4_CH2-84PD14I/OFTFSMC_D0, TIM4_CH3-85PD15I/OFTFSMC_D1, TIM4_CH4-七、GPIOE端口PE0-PE1516个引脚引脚编号引脚名称类型FT主要复用功能97PE0I/OFTTIM4_ETR, FSMC_NBL098PE1I/OFTFSMC_NBL199PE2I/OFTFSMC_A23, TIM3_ETR100PE3I/OFTFSMC_A19, TIM3_CH1101PE4I/OFTFSMC_A20, TIM3_CH2102PE5I/OFTFSMC_A21, TIM3_CH3103PE6I/OFTFSMC_A22, TIM3_CH4104PE7I/OFTFSMC_D4, TIM1_ETR105PE8I/OFTFSMC_D5, TIM1_CH1106PE9I/OFTFSMC_D6, TIM1_CH2107PE10I/OFTFSMC_D7, TIM1_CH3108PE11I/OFTFSMC_D8, TIM1_CH4109PE12I/OFTFSMC_D9, TIM1_BKIN, SPI1_SCK110PE13I/OFTFSMC_D10, TIM1_CH1N, SPI1_MISO111PE14I/OFTFSMC_D11, TIM1_CH2N, SPI1_MOSI112PE15I/OFTFSMC_D12, TIM1_CH3N, SPI1_NSS八、GPIOF端口PF0-PF1516个引脚引脚编号引脚名称类型FT主要复用功能1PF0I/OFTFSMC_A0, I2C2_SDA2PF1I/OFTFSMC_A1, I2C2_SCL3PF2I/OFTFSMC_A24PF3I/OFTFSMC_A35PF4I/OFTFSMC_A46PF5I/OFTFSMC_A57PF6I/OFTFSMC_NIORD, TIM11_CH18PF7I/OFTFSMC_NREG, TIM12_CH19PF8I/OFTFSMC_NIOWR, TIM13_CH110PF9I/OFTFSMC_CD, TIM14_CH111PF10I/OFTFSMC_INTR, TIM11_CH212PF11I/OFTFSMC_NCE4_1, TIM12_CH213PF12I/OFTFSMC_A6, TIM13_CH214PF13I/OFTFSMC_A7, TIM14_CH215PF14I/OFTFSMC_A8, TIM11_CH316PF15I/OFTFSMC_A9, TIM12_CH3九、GPIOG端口PG0-PG1516个引脚引脚编号引脚名称类型FT主要复用功能72PG0I/OFTFSMC_A10, TIM8_ETR, SPI1_NSS73PG1I/OFTFSMC_A11, TIM8_CH1, SPI1_SCK74PG2I/OFTFSMC_A12, TIM8_CH2, SPI1_MISO75PG3I/OFTFSMC_A13, TIM8_CH3, SPI1_MOSI76PG4I/OFTFSMC_A14, TIM8_CH4, SPI1_NSS77PG5I/OFTFSMC_A15, TIM8_BKIN, SPI1_SCK78PG6I/OFTFSMC_INT2, TIM8_CH1N, SPI1_MISO79PG7I/OFTFSMC_INT3, TIM8_CH2N, SPI1_MOSI80PG8I/OFTFSMC_NCE, TIM8_CH3N, SPI1_NSS81PG9I/OFTFSMC_NE2, TIM8_CH4, USART1_TX82PG10I/OFTFSMC_NE3, TIM8_ETR, USART1_RX83PG11I/OFTFSMC_NCE4_2, TIM8_BKIN, USART3_TX84PG12I/OFTFSMC_NE4, TIM8_CH1, USART3_RX85PG13I/OFTFSMC_A24, TIM8_CH2, USART3_CTS86PG14I/OFTFSMC_A25, TIM8_CH3, USART3_RTS87PG15I/OFTFSMC_A26, TIM8_CH4, USART3_CK十、调试接口引脚已包含在GPIO中引脚编号主要功能调试功能说明42PA13JTMS/SWDIOSWD数据I/O / JTAG测试模式选择43PA14JTCK/SWCLKSWD时钟 / JTAG测试时钟44PA15JTDIJTAG测试数据输入50PB3JTDO/TRACESWOJTAG测试数据输出 / 跟踪输出51PB4NJTRSTJTAG测试复位调试注意事项默认情况下上述5个引脚用于调试功能。如需释放为普通GPIO使用需要在代码中禁用调试功能并配置AFIO重映射。关键设计注意事项1. 5V容忍FT标记说明表格中“FT”标记表示该引脚支持5V输入。在数据手册中带有FT标记的引脚可以直接连接5V逻辑器件而不需要电平转换。2. PC13/PC14/PC15使用限制这三个引脚由备份电源域供电输出驱动能力约3mA远低于普通GPIO最大速度2MHz不建议驱动LED或大电流负载当进入待机模式或备份域由VBAT供电时这些引脚会进入模拟输入模式3. 复用功能与重映射复用功能一个GPIO可配置为多种外设功能如USART、SPI、定时器等但同一时间只能启用一个功能重映射可通过软件将外设功能映射到备用引脚上提高PCB布线灵活性重映射需要在RCC_APB2ENR中使能AFIO时钟后方可配置4. 电源去耦建议每个VDD引脚附近建议放置0.1μF陶瓷电容VDDA/VSSA建议通过磁珠与数字电源隔离可考虑在电源输入端并联4.7μF~10μF的钽电容5. 未使用引脚处理建议将未使用的GPIO引脚配置为推挽输出低电平或带上拉的输入模式避免浮空输入引入噪声和额外功耗。6. 启动模式配置BOOT0BOOT1启动区域0X用户Flash10系统存储器内置ISP Bootloader11内置SRAMBOOT1电平通过PB2引脚读取复位时。参考资料STMicroelectronics.STM32F103ZE Datasheet- 官方数据手册STMicroelectronics.RM0008 Reference Manual- 参考手册硬件设计参考 - STM32F103ZE评估板用户手册版本信息本文档基于STM32F103ZE数据手册 Rev 7整理Doc ID 14611完整数据手册可从ST官网下载。
