STM32F101ZET6

{
  "slug": "stm32f101zet6",
  "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": [
    "component",
    "embedded processors & controllers",
    "stm32f101zet6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32f101zet6.kicad_sym",
    "stm32f101zet6.kicad_mod",
    "stm32f101zet6.glb",
    "stm32f101zet6.step",
    "stm32f101zet6.lbr",
    "docs/hero.png",
    "docs/stm32f101zet6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32f101zet6-hero.glb",
    "stm32f101zet6-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32F101ZET6",
    "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/8588923589878034432",
    "parts": {
      "symbol": "stm32f101zet6.kicad_sym",
      "footprint": "stm32f101zet6.kicad_mod",
      "model_3d": "stm32f101zet6-hero.glb",
      "model_3d_plain": "stm32f101zet6.glb",
      "model_3d_step": "stm32f101zet6-etched.step",
      "model_3d_step_plain": "stm32f101zet6.step",
      "lbr": "stm32f101zet6.lbr"
    },
    "distributor_links": {
      "lcsc": "C1343193",
      "digikey": "497-6439-ND",
      "mouser": "511-STM32F101ZET6"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T23:55:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-6439-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32F101ZET6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE2; alternate functions TRACECLK and FSMC_A23."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE3; alternate functions TRACED0 and FSMC_A19."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE4; alternate functions TRACED1 and FSMC_A20."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE5; alternate functions TRACED2 and FSMC_A21."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE6; alternate functions TRACED3 and FSMC_A22."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup supply pin for the RTC and backup registers (VBAT supply)."
      },
      {
        "number": "7",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "Supplied through the power switch, which sinks only 3 mA, so output speed must not exceed 2 MHz at 30 pF and the pin must not source current such as driving an LED; alternate function TAMPER-RTC."
      },
      {
        "number": "8",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "Supplied through the power switch (3 mA limit), so output speed must not exceed 2 MHz at 30 pF and it must not be used as a current source; alternate function OSC32_IN."
      },
      {
        "number": "9",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Supplied through the power switch (3 mA limit), so output speed must not exceed 2 MHz at 30 pF and it must not be used as a current source; alternate function OSC32_OUT."
      },
      {
        "number": "10",
        "name": "PF0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF0; alternate function FSMC_A0."
      },
      {
        "number": "11",
        "name": "PF1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF1; alternate function FSMC_A1."
      },
      {
        "number": "12",
        "name": "PF2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF2; alternate function FSMC_A2."
      },
      {
        "number": "13",
        "name": "PF3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF3; alternate function FSMC_A3."
      },
      {
        "number": "14",
        "name": "PF4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF4; alternate function FSMC_A4."
      },
      {
        "number": "15",
        "name": "PF5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF5; alternate function FSMC_A5."
      },
      {
        "number": "16",
        "name": "VSS_5",
        "type": "power_in",
        "description": "Digital ground pin VSS_5."
      },
      {
        "number": "17",
        "name": "VDD_5",
        "type": "power_in",
        "description": "Digital supply pin VDD_5; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "18",
        "name": "PF6",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PF6; alternate function FSMC_NIORD."
      },
      {
        "number": "19",
        "name": "PF7",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PF7; alternate function FSMC_NREG."
      },
      {
        "number": "20",
        "name": "PF8",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PF8; alternate function FSMC_NIOWR."
      },
      {
        "number": "21",
        "name": "PF9",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PF9; alternate function FSMC_CD."
      },
      {
        "number": "22",
        "name": "PF10",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PF10; alternate function FSMC_INTR."
      },
      {
        "number": "23",
        "name": "OSC_IN",
        "type": "input",
        "description": "HSE oscillator input pin (OSC_IN); on this package PD0 is available by default as a remap-free alternate function (footnote 7 and 8)."
      },
      {
        "number": "24",
        "name": "OSC_OUT",
        "type": "output",
        "description": "HSE oscillator output pin (OSC_OUT); on this package PD1 is available by default as a remap-free alternate function (footnote 7 and 8)."
      },
      {
        "number": "25",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Active-low reset pin (I/O type, no FT level) of the microcontroller."
      },
      {
        "number": "26",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PC0; alternate function ADC_IN10."
      },
      {
        "number": "27",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PC1; alternate function ADC_IN11."
      },
      {
        "number": "28",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PC2; alternate function ADC_IN12."
      },
      {
        "number": "29",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PC3; alternate function ADC_IN13."
      },
      {
        "number": "30",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin; the ADC conversion range is referenced to VSSA."
      },
      {
        "number": "31",
        "name": "VREF-",
        "type": "power_in",
        "description": "Negative ADC reference, which can be internally connected to VSSA depending on the package."
      },
      {
        "number": "32",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive ADC reference voltage, 2.4 V to VDDA."
      },
      {
        "number": "33",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin for the ADC, 2.4 V to 3.6 V."
      },
      {
        "number": "34",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PA0; alternate functions WKUP, USART2_CTS, ADC_IN0, TIM5_CH1 and TIM2_CH1_ETR."
      },
      {
        "number": "35",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PA1; alternate functions USART2_RTS, ADC_IN1, TIM5_CH2 and TIM2_CH2."
      },
      {
        "number": "36",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PA2; alternate functions USART2_TX, TIM5_CH3, ADC_IN2 and TIM2_CH3."
      },
      {
        "number": "37",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PA3; alternate functions USART2_RX, TIM5_CH4, ADC_IN3 and TIM2_CH4."
      },
      {
        "number": "38",
        "name": "VSS_4",
        "type": "power_in",
        "description": "Digital ground pin VSS_4."
      },
      {
        "number": "39",
        "name": "VDD_4",
        "type": "power_in",
        "description": "Digital supply pin VDD_4; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "40",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PA4; alternate functions SPI1_NSS, DAC_OUT1, ADC_IN4 and USART2_CK."
      },
      {
        "number": "41",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PA5; alternate functions SPI1_SCK, DAC_OUT2 and ADC_IN5."
      },
      {
        "number": "42",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PA6; alternate functions SPI1_MISO, ADC_IN6 and TIM3_CH1."
      },
      {
        "number": "43",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PA7; alternate functions SPI1_MOSI, ADC_IN7 and TIM3_CH2."
      },
      {
        "number": "44",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PC4; alternate function ADC_IN14."
      },
      {
        "number": "45",
        "name": "PC5",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PC5; alternate function ADC_IN15."
      },
      {
        "number": "46",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PB0; alternate functions ADC_IN8 and TIM3_CH3."
      },
      {
        "number": "47",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PB1; alternate functions ADC_IN9 and TIM3_CH4."
      },
      {
        "number": "48",
        "name": "PB2/BOOT1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB2/BOOT1."
      },
      {
        "number": "49",
        "name": "PF11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF11; alternate function FSMC_NIOS16."
      },
      {
        "number": "50",
        "name": "PF12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF12; alternate function FSMC_A6."
      },
      {
        "number": "51",
        "name": "VSS_6",
        "type": "power_in",
        "description": "Digital ground pin VSS_6."
      },
      {
        "number": "52",
        "name": "VDD_6",
        "type": "power_in",
        "description": "Digital supply pin VDD_6; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "53",
        "name": "PF13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF13; alternate function FSMC_A7."
      },
      {
        "number": "54",
        "name": "PF14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF14; alternate function FSMC_A8."
      },
      {
        "number": "55",
        "name": "PF15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF15; alternate function FSMC_A9."
      },
      {
        "number": "56",
        "name": "PG0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG0; alternate function FSMC_A10."
      },
      {
        "number": "57",
        "name": "PG1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG1; alternate function FSMC_A11."
      },
      {
        "number": "58",
        "name": "PE7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE7; alternate function FSMC_D4."
      },
      {
        "number": "59",
        "name": "PE8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE8; alternate function FSMC_D5."
      },
      {
        "number": "60",
        "name": "PE9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE9; alternate function FSMC_D6."
      },
      {
        "number": "61",
        "name": "VSS_7",
        "type": "power_in",
        "description": "Digital ground pin VSS_7."
      },
      {
        "number": "62",
        "name": "VDD_7",
        "type": "power_in",
        "description": "Digital supply pin VDD_7; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "63",
        "name": "PE10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE10; alternate function FSMC_D7."
      },
      {
        "number": "64",
        "name": "PE11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE11; alternate function FSMC_D8."
      },
      {
        "number": "65",
        "name": "PE12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE12; alternate function FSMC_D9."
      },
      {
        "number": "66",
        "name": "PE13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE13; alternate function FSMC_D10."
      },
      {
        "number": "67",
        "name": "PE14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE14; alternate function FSMC_D11."
      },
      {
        "number": "68",
        "name": "PE15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE15; alternate function FSMC_D12."
      },
      {
        "number": "69",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB10; alternate functions I2C2_SCL, USART3_TX and TIM2_CH3."
      },
      {
        "number": "70",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB11; alternate functions I2C2_SDA, USART3_RX and TIM2_CH4."
      },
      {
        "number": "71",
        "name": "VSS_1",
        "type": "power_in",
        "description": "Digital ground pin VSS_1."
      },
      {
        "number": "72",
        "name": "VDD_1",
        "type": "power_in",
        "description": "Digital supply pin VDD_1; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "73",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB12; alternate functions SPI2_NSS, I2C2_SMBA and USART3_CK."
      },
      {
        "number": "74",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB13; alternate functions SPI2_SCK and USART3_CTS."
      },
      {
        "number": "75",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB14; alternate functions SPI2_MISO and USART3_RTS."
      },
      {
        "number": "76",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB15; alternate function SPI2_MOSI."
      },
      {
        "number": "77",
        "name": "PD8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD8; alternate functions FSMC_D13 and USART3_TX."
      },
      {
        "number": "78",
        "name": "PD9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD9; alternate functions FSMC_D14 and USART3_RX."
      },
      {
        "number": "79",
        "name": "PD10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD10; alternate functions FSMC_D15 and USART3_CK."
      },
      {
        "number": "80",
        "name": "PD11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD11; alternate functions FSMC_A16 and USART3_CTS."
      },
      {
        "number": "81",
        "name": "PD12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD12; alternate functions FSMC_A17, TIM4_CH1 and USART3_RTS."
      },
      {
        "number": "82",
        "name": "PD13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD13; alternate functions FSMC_A18 and TIM4_CH2."
      },
      {
        "number": "83",
        "name": "VSS_8",
        "type": "power_in",
        "description": "Digital ground pin VSS_8."
      },
      {
        "number": "84",
        "name": "VDD_8",
        "type": "power_in",
        "description": "Digital supply pin VDD_8; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "85",
        "name": "PD14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD14; alternate functions FSMC_D0 and TIM4_CH3."
      },
      {
        "number": "86",
        "name": "PD15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD15; alternate functions FSMC_D1 and TIM4_CH4."
      },
      {
        "number": "87",
        "name": "PG2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG2; alternate function FSMC_A12."
      },
      {
        "number": "88",
        "name": "PG3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG3; alternate function FSMC_A13."
      },
      {
        "number": "89",
        "name": "PG4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG4; alternate function FSMC_A14."
      },
      {
        "number": "90",
        "name": "PG5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG5; alternate function FSMC_A15."
      },
      {
        "number": "91",
        "name": "PG6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG6; alternate function FSMC_INT2."
      },
      {
        "number": "92",
        "name": "PG7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG7; alternate function FSMC_INT3."
      },
      {
        "number": "93",
        "name": "PG8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG8 and no listed alternate function."
      },
      {
        "number": "94",
        "name": "VSS_9",
        "type": "power_in",
        "description": "Digital ground pin VSS_9."
      },
      {
        "number": "95",
        "name": "VDD_9",
        "type": "power_in",
        "description": "Digital supply pin VDD_9; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "96",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC6; alternate function TIM3_CH1."
      },
      {
        "number": "97",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC7; alternate function TIM3_CH2."
      },
      {
        "number": "98",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC8; alternate function TIM3_CH3."
      },
      {
        "number": "99",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC9; alternate function TIM3_CH4."
      },
      {
        "number": "100",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA8; alternate functions USART1_CK and MCO."
      },
      {
        "number": "101",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA9; alternate function USART1_TX."
      },
      {
        "number": "102",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA10; alternate function USART1_RX."
      },
      {
        "number": "103",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA11; alternate function USART1_CTS."
      },
      {
        "number": "104",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA12; alternate function USART1_RTS."
      },
      {
        "number": "105",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function JTMS-SWDIO; remap function PA13 is listed in the Remap column."
      },
      {
        "number": "106",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "107",
        "name": "VSS_2",
        "type": "power_in",
        "description": "Digital ground pin VSS_2."
      },
      {
        "number": "108",
        "name": "VDD_2",
        "type": "power_in",
        "description": "Digital supply pin VDD_2; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "109",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function JTCK-SWCLK; remap function PA14 is listed in the Remap column."
      },
      {
        "number": "110",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function JTDI; alternate functions SPI3_NSS, TIM2_CH1_ETR, PA15 (remap) and SPI1_NSS."
      },
      {
        "number": "111",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC10; alternate functions UART4_TX and USART3_TX."
      },
      {
        "number": "112",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC11; alternate functions UART4_RX and USART3_RX."
      },
      {
        "number": "113",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC12; alternate functions UART5_TX and USART3_CK."
      },
      {
        "number": "114",
        "name": "PD0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function OSC_IN (footnote 8) and alternate function FSMC_D2; available by default on this package."
      },
      {
        "number": "115",
        "name": "PD1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function OSC_OUT (footnote 8) and alternate function FSMC_D3; available by default on this package."
      },
      {
        "number": "116",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD2; alternate functions TIM3_ETR and UART5_RX."
      },
      {
        "number": "117",
        "name": "PD3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD3; alternate functions FSMC_CLK and USART2_CTS."
      },
      {
        "number": "118",
        "name": "PD4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD4; alternate functions FSMC_NOE and USART2_RTS."
      },
      {
        "number": "119",
        "name": "PD5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD5; alternate functions FSMC_NWE and USART2_TX."
      },
      {
        "number": "120",
        "name": "VSS_10",
        "type": "power_in",
        "description": "Digital ground pin VSS_10."
      },
      {
        "number": "121",
        "name": "VDD_10",
        "type": "power_in",
        "description": "Digital supply pin VDD_10; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "122",
        "name": "PD6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD6; alternate functions FSMC_NWAIT and USART2_RX."
      },
      {
        "number": "123",
        "name": "PD7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD7; alternate functions FSMC_NE1/FSMC_NCE2 and USART2_CK."
      },
      {
        "number": "124",
        "name": "PG9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG9; alternate function FSMC_NE2/FSMC_NCE3."
      },
      {
        "number": "125",
        "name": "PG10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG10; alternate functions FSMC_NE3 and FSMC_NCE4_1."
      },
      {
        "number": "126",
        "name": "PG11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG11; alternate function FSMC_NCE4_2."
      },
      {
        "number": "127",
        "name": "PG12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG12; alternate function FSMC_NE4."
      },
      {
        "number": "128",
        "name": "PG13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG13; alternate function FSMC_A24."
      },
      {
        "number": "129",
        "name": "PG14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG14; alternate function FSMC_A25."
      },
      {
        "number": "130",
        "name": "VSS_11",
        "type": "power_in",
        "description": "Digital ground pin VSS_11."
      },
      {
        "number": "131",
        "name": "VDD_11",
        "type": "power_in",
        "description": "Digital supply pin VDD_11; application supply and I/Os range 2.0 to 3.6 V."
      },
      {
        "number": "132",
        "name": "PG15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PG15 and no listed alternate function."
      },
      {
        "number": "133",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function JTDO; alternate functions SPI3_SCK, TIM2_CH2, PB3 (remap), TRACESWO and SPI1_SCK."
      },
      {
        "number": "134",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function NJTRST; alternate functions SPI3_MISO, PB4 (remap), TIM3_CH1 and SPI1_MISO."
      },
      {
        "number": "135",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Standard I/O without FT level (not 5 V-tolerant) with default function PB5; alternate functions I2C1_SMBA, SPI3_MOSI, TIM3_CH2 and SPI1_MOSI."
      },
      {
        "number": "136",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB6; alternate functions I2C1_SCL, TIM4_CH1 and USART1_TX."
      },
      {
        "number": "137",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB7; alternate functions I2C1_SDA, FSMC_NADV, TIM4_CH2 and USART1_RX."
      },
      {
        "number": "138",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot mode selection input BOOT0 (type I, no FT level)."
      },
      {
        "number": "139",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB8; alternate functions TIM4_CH3 and I2C1_SCL."
      },
      {
        "number": "140",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB9; alternate functions TIM4_CH4 and I2C1_SDA."
      },
      {
        "number": "141",
        "name": "PE0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE0; alternate functions TIM4_ETR and FSMC_NBL0."
      },
      {
        "number": "142",
        "name": "PE1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PE1; alternate function FSMC_NBL1."
      },
      {
        "number": "143",
        "name": "VSS_3",
        "type": "power_in",
        "description": "Digital ground pin VSS_3."
      },
      {
        "number": "144",
        "name": "VDD_3",
        "type": "power_in",
        "description": "Digital supply pin VDD_3; application supply and I/Os 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: PC13, PC14 and PC15 are supplied through the power switch, which sinks only 3 mA; output use is limi; Pin 106 is printed as 'Not connected' in Table 5 and is mapped to ERC type unconnected.; OSC_IN/OSC_OUT (pins 23, 24) and PD0/PD1 (pins 114, 115) share functions. Table 5 note 7 says PD0/PD"
        ],
        "pages_sent": 48,
        "cost_usd": 0.2873,
        "at": "2026-10-11T23:54:52"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923589878034432",
        "pages": 121,
        "sha256": "1828693b7ac44c2e",
        "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": "stm32f101zet6.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": "stm32f101zet6-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": "5207fc5af4026e4e6e168d3980daa2f24e9ba71813968a97d73750ba14ad5769",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}