STM32L073VBT6TR

{
  "slug": "stm32l073vbt6tr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-100(14x14). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l073vbt6tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "stm32l073vbt6tr.step",
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    "docs/hero.png",
    "docs/stm32l073vbt6tr-datasheet.pdf",
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    "stm32l073vbt6tr-hero.overlay.json"
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  "component": {
    "mpn": "STM32L073VBT6TR",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886121090990080",
    "parts": {
      "symbol": "stm32l073vbt6tr.kicad_sym",
      "footprint": "stm32l073vbt6tr.kicad_mod",
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      "model_3d_step": "stm32l073vbt6tr-etched.step",
      "model_3d_step_plain": "stm32l073vbt6tr.step",
      "lbr": "stm32l073vbt6tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C529431",
      "digikey": "497-STM32L073VBT6TR-ND",
      "mouser": "511-STM32L073VBT6TR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T08:40:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-STM32L073VBT6TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L073VBT6TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG38, TIM3_ETR; no additional functions listed."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM22_CH1, LCD_SEG39, TIM3_CH1; no additional functions listed."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM22_CH2, TIM3_CH2; no additional functions listed."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM21_CH1, TIM3_CH3; no additional functions listed."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM21_CH2, TIM3_CH4; additional function RTC_TAMP3/WKUP3."
      },
      {
        "number": "6",
        "name": "VLCD",
        "type": "power_in",
        "description": "LCD supply pin (type S); the LCD features cite an on-board step-up converter and the VLCD voltage may be higher than VDDA."
      },
      {
        "number": "7",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); no alternate functions; additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2."
      },
      {
        "number": "8",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); additional function OSC32_IN for the 32 kHz oscillator input."
      },
      {
        "number": "9",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC); additional function OSC32_OUT for the 32 kHz oscillator output."
      },
      {
        "number": "10",
        "name": "PH9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); no alternate or additional functions listed."
      },
      {
        "number": "11",
        "name": "PH10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); no alternate or additional functions listed."
      },
      {
        "number": "12",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC); alternate function USB_CRS_SYNC; additional function OSC_IN as crystal oscillator input."
      },
      {
        "number": "13",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC); additional function OSC_OUT as crystal oscillator output."
      },
      {
        "number": "14",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with embedded weak pull-up resistor (RST type)."
      },
      {
        "number": "15",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LPTIM1_IN1, LCD_SEG18, EVENTOUT, TSC_G7_IO1, LPUART1_RX, I2C3_SCL; additional function ADC_IN10."
      },
      {
        "number": "16",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LPTIM1_OUT, LCD_SEG19, EVENTOUT, TSC_G7_IO2, LPUART1_TX, I2C3_SDA; additional function ADC_IN11."
      },
      {
        "number": "17",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LPTIM1_IN2, LCD_SEG20, SPI2_MISO/I2S2_MCK, TSC_G7_IO3; additional function ADC_IN12."
      },
      {
        "number": "18",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LPTIM1_ETR, LCD_SEG21, SPI2_MOSI/I2S2_SD, TSC_G7_IO4; additional function ADC_IN13."
      },
      {
        "number": "19",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground supply pin (type S); no further limits are stated in the pin definition table."
      },
      {
        "number": "20",
        "name": "VREF-",
        "type": "power_in",
        "description": "Negative reference voltage pin (type S) that is included in the ADC characteristics."
      },
      {
        "number": "21",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive reference voltage pin (type S); the DAC section lists an input reference voltage VREF+."
      },
      {
        "number": "22",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin (type S); the ADC and DAC characteristics reference VDDA."
      },
      {
        "number": "23",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC); alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR, USART4_TX, COMP1_OUT; additional functions COMP1_INM, ADC_IN0, RTC_TAMP2/WKUP1."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG0, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE, TIM21_ETR, USART4_RX; additional functions COMP1_INP, ADC_IN1."
      },
      {
        "number": "25",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM21_CH1, LCD_SEG1, TIM2_CH3, TSC_G1_IO3, USART2_TX, LPUART1_TX, COMP2_OUT; additional functions COMP2_INM, ADC_IN2."
      },
      {
        "number": "26",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4, USART2_RX, LPUART1_RX; additional functions COMP2_INP, ADC_IN3."
      },
      {
        "number": "27",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin (type S); all voltages are referenced to VSS."
      },
      {
        "number": "28",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin (type S); the datasheet feature list gives the device supply range as 1.65 V to 3.6 V."
      },
      {
        "number": "29",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) with reduced touch sensing sensitivity, recommended for use as sampling capacitor I/O; alternate functions SPI1_NSS, TSC_G2_IO1, USART2_CK, TIM22_ETR; additional functions COMP1_INM, COMP2_INM, ADC_IN4, DAC_OUT1."
      },
      {
        "number": "30",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC); alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2, TIM2_CH1; additional functions COMP1_INM, COMP2_INM, ADC_IN5, DAC_OUT2."
      },
      {
        "number": "31",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions SPI1_MISO, LCD_SEG3, TIM3_CH1, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT, COMP1_OUT; additional function ADC_IN6."
      },
      {
        "number": "32",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions SPI1_MOSI, LCD_SEG4, TIM3_CH2, TSC_G2_IO4, TIM22_CH2, EVENTOUT, COMP2_OUT; additional function ADC_IN7."
      },
      {
        "number": "33",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG22, LPUART1_TX; additional function ADC_IN14."
      },
      {
        "number": "34",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG23, LPUART1_RX, TSC_G3_IO1; additional function ADC_IN15."
      },
      {
        "number": "35",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG5, TIM3_CH3, TSC_G3_IO2; additional functions LCD_VLCD3, ADC_IN8, VREF_OUT."
      },
      {
        "number": "36",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG6, TIM3_CH4, TSC_G3_IO3, LPUART1_RTS/LPUART1_DE; additional functions ADC_IN9, VREF_OUT."
      },
      {
        "number": "37",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LPTIM1_OUT, TSC_G3_IO4, I2C3_SMBA; additional function LCD_VLCD2."
      },
      {
        "number": "38",
        "name": "PE7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG45, USART5_CK/USART5_RTS/USART5_DE; no additional functions listed."
      },
      {
        "number": "39",
        "name": "PE8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG46, USART4_TX; no additional functions listed."
      },
      {
        "number": "40",
        "name": "PE9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM2_CH1, LCD_SEG47, TIM2_ETR, USART4_RX; no additional functions listed."
      },
      {
        "number": "41",
        "name": "PE10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM2_CH2, LCD_SEG40, USART5_TX; no additional functions listed."
      },
      {
        "number": "42",
        "name": "PE11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM2_CH3, USART5_RX; additional function LCD_VLCD1."
      },
      {
        "number": "43",
        "name": "PE12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM2_CH4, SPI1_NSS; additional function LCD_VLCD3."
      },
      {
        "number": "44",
        "name": "PE13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG41, SPI1_SCK; no additional functions listed."
      },
      {
        "number": "45",
        "name": "PE14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG42, SPI1_MISO; no additional functions listed."
      },
      {
        "number": "46",
        "name": "PE15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG43, SPI1_MOSI; no additional functions listed."
      },
      {
        "number": "47",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK, I2C2_SCL, LPUART1_RX; no additional functions listed."
      },
      {
        "number": "48",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX, I2C2_SDA, LPUART1_TX; no additional functions listed."
      },
      {
        "number": "49",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin (type S); all voltages are referenced to VSS."
      },
      {
        "number": "50",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin (type S); the datasheet feature list gives the device supply range as 1.65 V to 3.6 V."
      },
      {
        "number": "51",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions SPI2_NSS/I2S2_WS, LCD_SEG12, LPUART1_RTS/LPUART1_DE, TSC_G6_IO2, I2C2_SMBA, EVENTOUT; additional function LCD_VLCD1."
      },
      {
        "number": "52",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions SPI2_SCK/I2S2_CK, LCD_SEG13, MCO, TSC_G6_IO3, LPUART1_CTS, I2C2_SCL, TIM21_CH1; no additional functions listed."
      },
      {
        "number": "53",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions SPI2_MISO/I2S2_MCK, LCD_SEG14, RTC_OUT, TSC_G6_IO4, LPUART1_RTS/LPUART1_DE, I2C2_SDA, TIM21_CH2; no additional functions listed."
      },
      {
        "number": "54",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions SPI2_MOSI/I2S2_SD, LCD_SEG15, RTC_REFIN; no additional functions listed."
      },
      {
        "number": "55",
        "name": "PD8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LPUART1_TX, LCD_SEG28; no additional functions listed."
      },
      {
        "number": "56",
        "name": "PD9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LPUART1_RX, LCD_SEG29; no additional functions listed."
      },
      {
        "number": "57",
        "name": "PD10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate function LCD_SEG30; no additional functions listed."
      },
      {
        "number": "58",
        "name": "PD11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LPUART1_CTS, LCD_SEG31; no additional functions listed."
      },
      {
        "number": "59",
        "name": "PD12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LPUART1_RTS/LPUART1_DE, LCD_SEG32; no additional functions listed."
      },
      {
        "number": "60",
        "name": "PD13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate function LCD_SEG33; no additional functions listed."
      },
      {
        "number": "61",
        "name": "PD14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate function LCD_SEG34; no additional functions listed."
      },
      {
        "number": "62",
        "name": "PD15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions USB_CRS_SYNC, LCD_SEG35; no additional functions listed."
      },
      {
        "number": "63",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM22_CH1, LCD_SEG24, TIM3_CH1, TSC_G8_IO1; no additional functions listed."
      },
      {
        "number": "64",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM22_CH2, LCD_SEG25, TIM3_CH2, TSC_G8_IO2; no additional functions listed."
      },
      {
        "number": "65",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM22_ETR, LCD_SEG26, TIM3_CH3, TSC_G8_IO3; no additional functions listed."
      },
      {
        "number": "66",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions TIM21_ETR, LCD_SEG27, USB_NOE/TIM3_CH4, TSC_G8_IO4, I2C3_SDA; no additional functions listed."
      },
      {
        "number": "67",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT, USART1_CK, I2C3_SCL; no additional functions listed."
      },
      {
        "number": "68",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions MCO, LCD_COM1, TSC_G4_IO1, USART1_TX, I2C1_SCL, I2C3_SMBA; no additional functions listed."
      },
      {
        "number": "69",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LCD_COM2, TSC_G4_IO2, USART1_RX, I2C1_SDA; no additional functions listed."
      },
      {
        "number": "70",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT), powered by VDD_USB; alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS, COMP1_OUT; additional function USB_DM."
      },
      {
        "number": "71",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT), powered by VDD_USB; alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE, COMP2_OUT; additional function USB_DP."
      },
      {
        "number": "72",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions SWDIO, USB_NOE, LPUART1_RX; no additional functions listed."
      },
      {
        "number": "73",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin (type S); the datasheet feature list gives the device supply range as 1.65 V to 3.6 V."
      },
      {
        "number": "74",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin (type S); all voltages are referenced to VSS."
      },
      {
        "number": "75",
        "name": "VDD_USB",
        "type": "power_in",
        "description": "Supply pin for the USB-powered I/Os (PA11, PA12); VDD-referenced characteristics for those pins must use VDD_USB."
      },
      {
        "number": "76",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions SWCLK, USART2_TX, LPUART1_TX; no additional functions listed."
      },
      {
        "number": "77",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1, USART4_RTS/USART4_DE; no additional functions listed."
      },
      {
        "number": "78",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LPUART1_TX, LCD_COM4/LCD_SEG28/LCD_SEG48, USART4_TX; no additional functions listed."
      },
      {
        "number": "79",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LPUART1_RX, LCD_COM5/LCD_SEG29/LCD_SEG49, USART4_RX; no additional functions listed."
      },
      {
        "number": "80",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_COM6/LCD_SEG30/LCD_SEG50, USART5_TX, USART4_CK; no additional functions listed."
      },
      {
        "number": "81",
        "name": "PD0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions TIM21_CH1, SPI2_NSS/I2S2_WS; no additional functions listed."
      },
      {
        "number": "82",
        "name": "PD1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate function SPI2_SCK/I2S2_CK; no additional functions listed."
      },
      {
        "number": "83",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LPUART1_RTS/LPUART1_DE, LCD_COM7/LCD_SEG31/LCD_SEG51, TIM3_ETR, USART5_RX; no additional functions listed."
      },
      {
        "number": "84",
        "name": "PD3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions USART2_CTS, LCD_SEG44, SPI2_MISO/I2S2_MCK; no additional functions listed."
      },
      {
        "number": "85",
        "name": "PD4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions USART2_RTS/USART2_DE, SPI2_MOSI/I2S2_SD; no additional functions listed."
      },
      {
        "number": "86",
        "name": "PD5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate function USART2_TX; no additional functions listed."
      },
      {
        "number": "87",
        "name": "PD6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate function USART2_RX; no additional functions listed."
      },
      {
        "number": "88",
        "name": "PD7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions USART2_CK, TIM21_CH2; no additional functions listed."
      },
      {
        "number": "89",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions SPI1_SCK, LCD_SEG7, TIM2_CH2, TSC_G5_IO1, EVENTOUT, USART1_RTS/USART1_DE, USART5_TX; additional function COMP2_INM."
      },
      {
        "number": "90",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions SPI1_MISO, LCD_SEG8, TIM3_CH1, TSC_G5_IO2, TIM22_CH1, USART1_CTS, USART5_RX, I2C3_SDA; additional function COMP2_INP."
      },
      {
        "number": "91",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK, USART5_RTS/USART5_DE; additional function COMP2_INP."
      },
      {
        "number": "92",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR, TSC_G5_IO3; additional function COMP2_INP."
      },
      {
        "number": "93",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2, TSC_G5_IO4, USART4_CTS; additional functions COMP2_INP, PVD_IN."
      },
      {
        "number": "94",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 pin (type I, marked B in the pin legend) with no I/O structure or alternate functions listed."
      },
      {
        "number": "95",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LCD_SEG16, TSC_SYNC, I2C1_SCL; no additional functions listed."
      },
      {
        "number": "96",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LCD_COM3, EVENTOUT, I2C1_SDA, SPI2_NSS/I2S2_WS; no additional functions listed."
      },
      {
        "number": "97",
        "name": "PE0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG36, EVENTOUT; no additional functions listed."
      },
      {
        "number": "98",
        "name": "PE1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT); alternate functions LCD_SEG37, EVENTOUT; no additional functions listed."
      },
      {
        "number": "99",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin (type S); all voltages are referenced to VSS."
      },
      {
        "number": "100",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin (type S); the datasheet feature list gives the device supply range as 1.65 V 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: Package variant confirmed: the MPN STM32L073VBT6TR decodes to LQFP (T), 100 pins (V), tape and reel ; The provided text does not include Section 6 (absolute maximum ratings, general operating conditions; Pin-specific notes from the datasheet: PA4 has reduced touch sensing sensitivity and is recommended "
        ],
        "pages_sent": 66,
        "cost_usd": 0.3388,
        "at": "2026-10-08T08:40:20"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886121090990080",
        "pages": 149,
        "sha256": "bffef32a7e5a5562",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 100,
        "described": 100,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "stm32l073vbt6tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "51720097260ffba41c3062f85f67623721102fa535901c47cb555a1f444feeb3",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l073vbt6tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2abf84e0ca09f384b61d477cbff171f8af2b8fade5bddb38ec5157fcdb9d2050",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}