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STM32F103ZDT6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-144(20x20). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
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{
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"version": "0.1.0",
"type": "component",
"description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-144(20x20). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
"tags": [
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"component": {
"mpn": "STM32F103ZDT6",
"manufacturer": "STMicroelectronics",
"package": "LQFP-144(20x20)",
"pin_count": 144,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181455211081728",
"parts": {
"symbol": "stm32f103zdt6.kicad_sym",
"footprint": "stm32f103zdt6.kicad_mod",
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"distributor_links": {
"lcsc": "C8302",
"digikey": "497-STM32F103ZDT6-ND",
"mouser": "511-STM32F103ZDT6"
},
"distributor_check": {
"checked_at": "2026-10-11T13:40:45Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-STM32F103ZDT6-ND",
"status": "found",
"lifecycle": "Active"
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"pn": "511-STM32F103ZDT6",
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"pins": [
{
"number": "1",
"name": "PE2",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE2, alternates TRACECK and FSMC_A23."
},
{
"number": "2",
"name": "PE3",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE3, alternates TRACED0 and FSMC_A19."
},
{
"number": "3",
"name": "PE4",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE4, alternates TRACED1 and FSMC_A20."
},
{
"number": "4",
"name": "PE5",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE5, alternates TRACED2 and FSMC_A21."
},
{
"number": "5",
"name": "PE6",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE6, alternates TRACED3 and FSMC_A22."
},
{
"number": "6",
"name": "VBAT",
"type": "power_in",
"description": "Backup-domain supply for the RTC and backup registers."
},
{
"number": "7",
"name": "PC13-TAMPER-RTC",
"type": "bidirectional",
"description": "I/O supplied through the power switch, which sinks at most 3 mA, so output use is limited to 2 MHz with 30 pF maximum load and the pin must not source current such as driving an LED (note 5); alternate function TAMPER-RTC."
},
{
"number": "8",
"name": "PC14-OSC32_IN",
"type": "bidirectional",
"description": "I/O supplied through the power switch, limited to 3 mA sink, 2 MHz at 30 pF maximum load and not usable as a current source (note 5); alternate function OSC32_IN."
},
{
"number": "9",
"name": "PC15-OSC32_OUT",
"type": "bidirectional",
"description": "I/O supplied through the power switch, limited to 3 mA sink, 2 MHz at 30 pF maximum load and not usable as a current source (note 5); alternate function OSC32_OUT."
},
{
"number": "10",
"name": "PF0",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF0, alternate FSMC_A0."
},
{
"number": "11",
"name": "PF1",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF1, alternate FSMC_A1."
},
{
"number": "12",
"name": "PF2",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF2, alternate FSMC_A2."
},
{
"number": "13",
"name": "PF3",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF3, alternate FSMC_A3."
},
{
"number": "14",
"name": "PF4",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF4, alternate FSMC_A4."
},
{
"number": "15",
"name": "PF5",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF5, alternate FSMC_A5."
},
{
"number": "16",
"name": "VSS_5",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "17",
"name": "VDD_5",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "18",
"name": "PF6",
"type": "bidirectional",
"description": "I/O (not marked 5 V tolerant in the table); default function PF6, alternates ADC3_IN4 and FSMC_NIORD."
},
{
"number": "19",
"name": "PF7",
"type": "bidirectional",
"description": "I/O (not marked 5 V tolerant in the table); default function PF7, alternates ADC3_IN5 and FSMC_NREG."
},
{
"number": "20",
"name": "PF8",
"type": "bidirectional",
"description": "I/O (not marked 5 V tolerant in the table); default function PF8, alternates ADC3_IN6 and FSMC_NIOWR."
},
{
"number": "21",
"name": "PF9",
"type": "bidirectional",
"description": "I/O (not marked 5 V tolerant in the table); default function PF9, alternates ADC3_IN7 and FSMC_CD."
},
{
"number": "22",
"name": "PF10",
"type": "bidirectional",
"description": "I/O (not marked 5 V tolerant in the table); default function PF10, alternates ADC3_IN8 and FSMC_INTR."
},
{
"number": "23",
"name": "OSC_IN",
"type": "input",
"description": "Input of the 4-to-16 MHz high-speed external crystal oscillator (HSE)."
},
{
"number": "24",
"name": "OSC_OUT",
"type": "output",
"description": "Output of the 4-to-16 MHz high-speed external crystal oscillator (HSE)."
},
{
"number": "25",
"name": "NRST",
"type": "bidirectional",
"description": "Active-low reset pin; its characteristics are given in Section 5.3.15 (NRST pin characteristics)."
},
{
"number": "26",
"name": "PC0",
"type": "bidirectional",
"description": "I/O; default function PC0, alternate ADC123_IN10 analog input."
},
{
"number": "27",
"name": "PC1",
"type": "bidirectional",
"description": "I/O; default function PC1, alternate ADC123_IN11 analog input."
},
{
"number": "28",
"name": "PC2",
"type": "bidirectional",
"description": "I/O; default function PC2, alternate ADC123_IN12 analog input."
},
{
"number": "29",
"name": "PC3",
"type": "bidirectional",
"description": "I/O; default function PC3, alternate ADC123_IN13 analog input."
},
{
"number": "30",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground reference for the ADC and reference section."
},
{
"number": "31",
"name": "VREF-",
"type": "power_in",
"description": "Negative ADC reference voltage; can be internally connected to VSSA depending on package (Table 59 note 3)."
},
{
"number": "32",
"name": "VREF+",
"type": "power_in",
"description": "Positive ADC reference voltage, 2.4 V to VDDA; can be internally connected to VDDA depending on package (Table 59)."
},
{
"number": "33",
"name": "VDDA",
"type": "power_in",
"description": "Analog supply for the ADC, 2.4 V to 3.6 V (Table 59)."
},
{
"number": "34",
"name": "PA0-WKUP",
"type": "bidirectional",
"description": "I/O; default function PA0 with wake-up input WKUP, alternates USART2_CTS, ADC123_IN0, TIM2_CH1_ETR and TIM5_CH1/TIM8_ETR."
},
{
"number": "35",
"name": "PA1",
"type": "bidirectional",
"description": "I/O; default function PA1, alternates USART2_RTS, ADC123_IN1, TIM5_CH2 and TIM2_CH2."
},
{
"number": "36",
"name": "PA2",
"type": "bidirectional",
"description": "I/O; default function PA2, alternates USART2_TX, TIM5_CH3, ADC123_IN2 and TIM2_CH3."
},
{
"number": "37",
"name": "PA3",
"type": "bidirectional",
"description": "I/O; default function PA3, alternates USART2_RX, TIM5_CH4, ADC123_IN3 and TIM2_CH4."
},
{
"number": "38",
"name": "VSS_4",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "39",
"name": "VDD_4",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "40",
"name": "PA4",
"type": "bidirectional",
"description": "I/O; default function PA4, alternates SPI1_NSS, USART2_CK, DAC_OUT1 and ADC12_IN4."
},
{
"number": "41",
"name": "PA5",
"type": "bidirectional",
"description": "I/O; default function PA5, alternates SPI1_SCK, DAC_OUT2 and ADC12_IN5."
},
{
"number": "42",
"name": "PA6",
"type": "bidirectional",
"description": "I/O; default function PA6, alternates SPI1_MISO, TIM8_BKIN, ADC12_IN6, TIM3_CH1 and TIM1_BKIN."
},
{
"number": "43",
"name": "PA7",
"type": "bidirectional",
"description": "I/O; default function PA7, alternates SPI1_MOSI, TIM8_CH1N, ADC12_IN7, TIM3_CH2 and TIM1_CH1N."
},
{
"number": "44",
"name": "PC4",
"type": "bidirectional",
"description": "I/O; default function PC4, alternate ADC12_IN14 analog input."
},
{
"number": "45",
"name": "PC5",
"type": "bidirectional",
"description": "I/O; default function PC5, alternate ADC12_IN15 analog input."
},
{
"number": "46",
"name": "PB0",
"type": "bidirectional",
"description": "I/O; default function PB0, alternates ADC12_IN8, TIM3_CH3, TIM8_CH2N and TIM1_CH2N."
},
{
"number": "47",
"name": "PB1",
"type": "bidirectional",
"description": "I/O; default function PB1, alternates ADC12_IN9, TIM3_CH4, TIM8_CH3N and TIM1_CH3N."
},
{
"number": "48",
"name": "PB2",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB2/BOOT1."
},
{
"number": "49",
"name": "PF11",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF11, alternate FSMC_NIOS16."
},
{
"number": "50",
"name": "PF12",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF12, alternate FSMC_A6."
},
{
"number": "51",
"name": "VSS_6",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "52",
"name": "VDD_6",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "53",
"name": "PF13",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF13, alternate FSMC_A7."
},
{
"number": "54",
"name": "PF14",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF14, alternate FSMC_A8."
},
{
"number": "55",
"name": "PF15",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PF15, alternate FSMC_A9."
},
{
"number": "56",
"name": "PG0",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG0, alternate FSMC_A10."
},
{
"number": "57",
"name": "PG1",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG1, alternate FSMC_A11."
},
{
"number": "58",
"name": "PE7",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE7, alternates FSMC_D4 and TIM1_ETR."
},
{
"number": "59",
"name": "PE8",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE8, alternates FSMC_D5 and TIM1_CH1N."
},
{
"number": "60",
"name": "PE9",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE9, alternates FSMC_D6 and TIM1_CH1."
},
{
"number": "61",
"name": "VSS_7",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "62",
"name": "VDD_7",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "63",
"name": "PE10",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE10, alternates FSMC_D7 and TIM1_CH2N."
},
{
"number": "64",
"name": "PE11",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE11, alternates FSMC_D8 and TIM1_CH2."
},
{
"number": "65",
"name": "PE12",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE12, alternates FSMC_D9 and TIM1_CH3N."
},
{
"number": "66",
"name": "PE13",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE13, alternates FSMC_D10 and TIM1_CH3."
},
{
"number": "67",
"name": "PE14",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE14, alternates FSMC_D11 and TIM1_CH4."
},
{
"number": "68",
"name": "PE15",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE15, alternates FSMC_D12 and TIM1_BKIN."
},
{
"number": "69",
"name": "PB10",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB10, alternates I2C2_SCL, USART3_TX and TIM2_CH3."
},
{
"number": "70",
"name": "PB11",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB11, alternates I2C2_SDA, USART3_RX and TIM2_CH4."
},
{
"number": "71",
"name": "VSS_1",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "72",
"name": "VDD_1",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "73",
"name": "PB12",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB12, alternates SPI2_NSS, I2S2_WS, I2C2_SMBA, USART3_CK and TIM1_BKIN."
},
{
"number": "74",
"name": "PB13",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB13, alternates SPI2_SCK, I2S2_CK, USART3_CTS and TIM1_CH1N."
},
{
"number": "75",
"name": "PB14",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB14, alternates SPI2_MISO, TIM1_CH2N and USART3_RTS."
},
{
"number": "76",
"name": "PB15",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB15, alternates SPI2_MOSI, I2S2_SD and TIM1_CH3N."
},
{
"number": "77",
"name": "PD8",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD8, alternates FSMC_D13 and USART3_TX."
},
{
"number": "78",
"name": "PD9",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD9, alternates FSMC_D14 and USART3_RX."
},
{
"number": "79",
"name": "PD10",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD10, alternates FSMC_D15 and USART3_CK."
},
{
"number": "80",
"name": "PD11",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD11, alternates FSMC_A16 and USART3_CTS."
},
{
"number": "81",
"name": "PD12",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD12, alternates FSMC_A17, TIM4_CH1 and USART3_RTS."
},
{
"number": "82",
"name": "PD13",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD13, alternates FSMC_A18 and TIM4_CH2."
},
{
"number": "83",
"name": "VSS_8",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "84",
"name": "VDD_8",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "85",
"name": "PD14",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD14, alternates FSMC_D0 and TIM4_CH3."
},
{
"number": "86",
"name": "PD15",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD15, alternates FSMC_D1 and TIM4_CH4."
},
{
"number": "87",
"name": "PG2",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG2, alternate FSMC_A12."
},
{
"number": "88",
"name": "PG3",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG3, alternate FSMC_A13."
},
{
"number": "89",
"name": "PG4",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG4, alternate FSMC_A14."
},
{
"number": "90",
"name": "PG5",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG5, alternate FSMC_A15."
},
{
"number": "91",
"name": "PG6",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG6, alternate FSMC_INT2."
},
{
"number": "92",
"name": "PG7",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG7, alternate FSMC_INT3."
},
{
"number": "93",
"name": "PG8",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG8, no alternate function listed in the table."
},
{
"number": "94",
"name": "VSS_9",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "95",
"name": "VDD_9",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "96",
"name": "PC6",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PC6, alternates I2S2_MCK, TIM8_CH1, SDIO_D6 and TIM3_CH1."
},
{
"number": "97",
"name": "PC7",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PC7, alternates I2S3_MCK, TIM8_CH2, SDIO_D7 and TIM3_CH2."
},
{
"number": "98",
"name": "PC8",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PC8, alternates TIM8_CH3, SDIO_D0 and TIM3_CH3."
},
{
"number": "99",
"name": "PC9",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PC9, alternates TIM8_CH4, SDIO_D1 and TIM3_CH4."
},
{
"number": "100",
"name": "PA8",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PA8, alternates USART1_CK, TIM1_CH1 and MCO."
},
{
"number": "101",
"name": "PA9",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PA9, alternates USART1_TX and TIM1_CH2."
},
{
"number": "102",
"name": "PA10",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PA10, alternates USART1_RX and TIM1_CH3."
},
{
"number": "103",
"name": "PA11",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PA11, alternates USART1_CTS, USBDM, CAN_RX and TIM1_CH4."
},
{
"number": "104",
"name": "PA12",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PA12, alternates USART1_RTS, USBDP, CAN_TX and TIM1_ETR."
},
{
"number": "105",
"name": "PA13",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function JTMS-SWDIO (serial wire debug data)."
},
{
"number": "106",
"name": "NC",
"type": "unconnected",
"description": "Marked 'Not connected' in the LQFP144 pin definition column."
},
{
"number": "107",
"name": "VSS_2",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "108",
"name": "VDD_2",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "109",
"name": "PA14",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function JTCK-SWCLK (serial wire debug clock)."
},
{
"number": "110",
"name": "PA15",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function JTDI, alternates SPI3_NSS, I2S3_WS, TIM2_CH1_ETR and SPI1_NSS (PA15 remap)."
},
{
"number": "111",
"name": "PC10",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PC10, alternates UART4_TX, SDIO_D2 and USART3_TX."
},
{
"number": "112",
"name": "PC11",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PC11, alternates UART4_RX, SDIO_D3 and USART3_RX."
},
{
"number": "113",
"name": "PC12",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PC12, alternates UART5_TX, SDIO_CK and USART3_CK."
},
{
"number": "114",
"name": "PD0",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); on LQFP144 PD0 is available by default with no remap needed (note 9), alternates FSMC_D2 and CAN_RX."
},
{
"number": "115",
"name": "PD1",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); on LQFP144 PD1 is available by default with no remap needed (note 9), alternates FSMC_D3 and CAN_TX."
},
{
"number": "116",
"name": "PD2",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD2, alternates TIM3_ETR, UART5_RX and SDIO_CMD."
},
{
"number": "117",
"name": "PD3",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD3, alternates FSMC_CLK and USART2_CTS."
},
{
"number": "118",
"name": "PD4",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD4, alternates FSMC_NOE and USART2_RTS."
},
{
"number": "119",
"name": "PD5",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD5, alternates FSMC_NWE and USART2_TX."
},
{
"number": "120",
"name": "VSS_10",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "121",
"name": "VDD_10",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "122",
"name": "PD6",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD6, alternates FSMC_NWAIT and USART2_RX."
},
{
"number": "123",
"name": "PD7",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PD7, alternates FSMC_NE1/FSMC_NCE2 and USART2_CK."
},
{
"number": "124",
"name": "PG9",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG9, alternate FSMC_NE2/FSMC_NCE3."
},
{
"number": "125",
"name": "PG10",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG10, alternates FSMC_NCE4_1/FSMC_NE3."
},
{
"number": "126",
"name": "PG11",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG11, alternate FSMC_NCE4_2."
},
{
"number": "127",
"name": "PG12",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG12, alternate FSMC_NE4."
},
{
"number": "128",
"name": "PG13",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG13, alternate FSMC_A24."
},
{
"number": "129",
"name": "PG14",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG14, alternate FSMC_A25."
},
{
"number": "130",
"name": "VSS_11",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "131",
"name": "VDD_11",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
},
{
"number": "132",
"name": "PG15",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PG15, no alternate function listed in the table."
},
{
"number": "133",
"name": "PB3",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function JTDO, alternates SPI3_SCK, I2S3_CK, TRACESWO, TIM2_CH2 and SPI1_SCK."
},
{
"number": "134",
"name": "PB4",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function NJTRST, alternates SPI3_MISO, TIM3_CH1 and SPI1_MISO."
},
{
"number": "135",
"name": "PB5",
"type": "bidirectional",
"description": "I/O (not marked 5 V tolerant in the table); default function PB5, alternates I2C1_SMBA, SPI3_MOSI, I2S3_SD, TIM3_CH2 and SPI1_MOSI."
},
{
"number": "136",
"name": "PB6",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB6, alternates I2C1_SCL, TIM4_CH1 and USART1_TX."
},
{
"number": "137",
"name": "PB7",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB7, alternates I2C1_SDA, FSMC_NADV, TIM4_CH2 and USART1_RX."
},
{
"number": "138",
"name": "BOOT0",
"type": "input",
"description": "Boot-mode selection input; the boot mode behaviour is described in the Boot modes section (2.3.10)."
},
{
"number": "139",
"name": "PB8",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB8, alternates TIM4_CH3, SDIO_D4, I2C1_SCL and CAN_RX."
},
{
"number": "140",
"name": "PB9",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PB9, alternates TIM4_CH4, SDIO_D5, I2C1_SDA and CAN_TX."
},
{
"number": "141",
"name": "PE0",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE0, alternates TIM4_ETR and FSMC_NBL0."
},
{
"number": "142",
"name": "PE1",
"type": "bidirectional",
"description": "I/O, 5 V tolerant (FT); default function PE1, alternate FSMC_NBL1."
},
{
"number": "143",
"name": "VSS_3",
"type": "power_in",
"description": "Digital ground pin; all voltages are referenced to VSS."
},
{
"number": "144",
"name": "VDD_3",
"type": "power_in",
"description": "Digital supply for I/Os and core; application supply range 2.0 to 3.6 V."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pin 106 is marked 'Not connected' in the LQFP144 column of Table 5; it has no function and is typed ; PD0 and PD1 use the LQFP144 column with note 9: they are available by default on LQFP144 without rem; PC13, PC14 and PC15 (pins 7-9) are powered through the power switch and sink at most 3 mA; their out"
],
"pages_sent": 44,
"cost_usd": 0.3343,
"at": "2026-10-11T13:40:08"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181455211081728",
"pages": 130,
"sha256": "6cc345d224870bff",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 144,
"described": 144,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "stm32f103zdt6.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
22.0,
22.0,
1.5
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "b4d698da8bb7697b754adb5655c932342462d9b9341cdaa081b3604dbdf7559b",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "stm32f103zdt6-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
22.0,
22.0,
1.5
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "69e123182e136e09f86832b2b2d3cb43b51a88ef4bb59763a66ccc015095b7be",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}