STM32L073RZT3

{
  "slug": "stm32l073rzt3",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l073rzt3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32l073rzt3.kicad_sym",
    "stm32l073rzt3.kicad_mod",
    "stm32l073rzt3.glb",
    "stm32l073rzt3.step",
    "stm32l073rzt3.lbr",
    "docs/hero.png",
    "docs/stm32l073rzt3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32l073rzt3-hero.glb",
    "stm32l073rzt3-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32L073RZT3",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923653945757696",
    "parts": {
      "symbol": "stm32l073rzt3.kicad_sym",
      "footprint": "stm32l073rzt3.kicad_mod",
      "model_3d": "stm32l073rzt3-hero.glb",
      "model_3d_plain": "stm32l073rzt3.glb",
      "model_3d_step": "stm32l073rzt3-etched.step",
      "model_3d_step_plain": "stm32l073rzt3.step",
      "lbr": "stm32l073rzt3.lbr"
    },
    "distributor_links": {
      "lcsc": "C1338971",
      "digikey": "497-16828-ND",
      "mouser": "511-STM32L073RZT3"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T21:50:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-16828-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L073RZT3",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VLCD",
        "type": "power_in",
        "description": "LCD power supply pin; per Section 3.13.2 VLCD may be higher than VDDA."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with RTC functions RTC_TAMP1, RTC_TS, RTC_OUT and WKUP2."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) that is also the 32 kHz oscillator input OSC32_IN."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) that is also the 32 kHz oscillator output OSC32_OUT."
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) that is also the HSE oscillator input OSC_IN, with alternate function USB_CRS_SYNC."
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) that is also the HSE oscillator output OSC_OUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with embedded weak pull-up resistor."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions LPTIM1_IN1, LCD_SEG18, EVENTOUT, TSC_G7_IO1, LPUART1_RX, I2C3_SCL and analog input ADC_IN10."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions LPTIM1_OUT, LCD_SEG19, EVENTOUT, TSC_G7_IO2, LPUART1_TX, I2C3_SDA and analog input ADC_IN11."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions LPTIM1_IN2, LCD_SEG20, SPI2_MISO/I2S2_MCK, TSC_G7_IO3 and analog input ADC_IN12."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPTIM1_ETR, LCD_SEG21, SPI2_MOSI/I2S2_SD, TSC_G7_IO4 and analog input ADC_IN13."
      },
      {
        "number": "12",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin."
      },
      {
        "number": "13",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin; the ADC and other analog parameters are specified against VDDA."
      },
      {
        "number": "14",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) with alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR, USART4_TX and COMP1_OUT, plus COMP1_INM, ADC_IN0 and RTC_TAMP2/WKUP1."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions EVENTOUT, LCD_SEG0, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE, TIM21_ETR and USART4_RX, plus COMP1_INP and ADC_IN1."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM21_CH1, LCD_SEG1, TIM2_CH3, TSC_G1_IO3, USART2_TX, LPUART1_TX and COMP2_OUT, plus COMP2_INM and ADC_IN2."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4, USART2_RX and LPUART1_RX, plus COMP2_INP and ADC_IN3."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the device operates from 1.65 V to 3.6 V."
      },
      {
        "number": "20",
        "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 and TIM22_ETR, plus COMP1_INM, COMP2_INM, ADC_IN4 and DAC_OUT1."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) with alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2 and TIM2_CH1, plus COMP1_INM, COMP2_INM, ADC_IN5 and DAC_OUT2."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_MISO, LCD_SEG3, TIM3_CH1, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT, plus ADC_IN6."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_MOSI, LCD_SEG4, TIM3_CH2, TSC_G2_IO4, TIM22_CH2, EVENTOUT and COMP2_OUT, plus ADC_IN7."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions EVENTOUT, LCD_SEG22 and LPUART1_TX, plus ADC_IN14."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LCD_SEG23, LPUART1_RX and TSC_G3_IO1, plus ADC_IN15."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions EVENTOUT, LCD_SEG5, TIM3_CH3 and TSC_G3_IO2, plus LCD_VLCD3, ADC_IN8 and VREF_OUT."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LCD_SEG6, TIM3_CH4, TSC_G3_IO3 and LPUART1_RTS/LPUART1_DE, plus ADC_IN9 and VREF_OUT."
      },
      {
        "number": "28",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPTIM1_OUT, TSC_G3_IO4 and I2C3_SMBA, plus LCD_VLCD2."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK, I2C2_SCL and LPUART1_RX."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX, I2C2_SDA and LPUART1_TX."
      },
      {
        "number": "31",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the device operates from 1.65 V to 3.6 V."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI2_NSS/I2S2_WS, LCD_SEG12, LPUART1_RTS/LPUART1_DE, TSC_G6_IO2, I2C2_SMBA and EVENTOUT, plus LCD_VLCD1."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions SPI2_SCK/I2S2_CK, LCD_SEG13, MCO, TSC_G6_IO3, LPUART1_CTS, I2C2_SCL and TIM21_CH1."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions SPI2_MISO/I2S2_MCK, LCD_SEG14, RTC_OUT, TSC_G6_IO4, LPUART1_RTS/LPUART1_DE, I2C2_SDA and TIM21_CH2."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI2_MOSI/I2S2_SD, LCD_SEG15 and RTC_REFIN."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM22_CH1, LCD_SEG24, TIM3_CH1 and TSC_G8_IO1."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM22_CH2, LCD_SEG25, TIM3_CH2 and TSC_G8_IO2."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM22_ETR, LCD_SEG26, TIM3_CH3 and TSC_G8_IO3."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions TIM21_ETR, LCD_SEG27, USB_NOE/TIM3_CH4, TSC_G8_IO4 and I2C3_SDA."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT, USART1_CK and I2C3_SCL."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions MCO, LCD_COM1, TSC_G4_IO1, USART1_TX, I2C1_SCL and I2C3_SMBA."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions LCD_COM2, TSC_G4_IO2, USART1_RX and I2C1_SDA."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) powered by VDD_USB, with alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS and COMP1_OUT, plus USB_DM."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) powered by VDD_USB, with alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE and COMP2_OUT, plus USB_DP."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SWDIO, USB_NOE and LPUART1_RX."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "48",
        "name": "VDD_USB",
        "type": "power_in",
        "description": "Supply pin for the USB-powered I/Os PA11 and PA12; for characteristics that refer to VDD on these pins, VDD_USB must be used."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SWCLK, USART2_TX and LPUART1_TX."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1 and USART4_RTS/USART4_DE."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPUART1_TX, LCD_COM4/LCD_SEG28/LCD_SEG48 and USART4_TX."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPUART1_RX, LCD_COM5/LCD_SEG29/LCD_SEG49 and USART4_RX."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LCD_COM6/LCD_SEG30/LCD_SEG50, USART5_TX and USART4_CK."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPUART1_RTS/LPUART1_DE, LCD_COM7/LCD_SEG31/LCD_SEG51, TIM3_ETR and USART5_RX."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_SCK, LCD_SEG7, TIM2_CH2, TSC_G5_IO1, EVENTOUT, USART1_RTS/USART1_DE and USART5_TX, plus COMP2_INM."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions SPI1_MISO, LCD_SEG8, TIM3_CH1, TSC_G5_IO2, TIM22_CH1, USART1_CTS, USART5_RX and I2C3_SDA, plus COMP2_INP."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK and USART5_RTS/USART5_DE, plus COMP2_INP."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR and TSC_G5_IO3, plus COMP2_INP."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2, TSC_G5_IO4 and USART4_CTS, plus COMP2_INP and PVD_IN."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 pin (input only)."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions LCD_SEG16, TSC_SYNC and I2C1_SCL."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant, Fm+ capable I/O (FTf) with alternate functions LCD_COM3, EVENTOUT, I2C1_SDA and SPI2_NSS/I2S2_WS."
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the device operates from 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 selection: the MPN STM32L073RZT3 decodes to 64 pins (R), LQFP (T), 192 Kbyte Flash (Z), so t; Pin type mapping inferred from the datasheet: the table lists I/O for NRST, PC14/PC15 and PH0/PH1 (o; Pins 20 (PA4) and 44/45 (PA11/PA12) carry footnotes in the source: PA4 has reduced touch sensing sen"
        ],
        "pages_sent": 72,
        "cost_usd": 0.3277,
        "at": "2026-10-08T21:50:02"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923653945757696",
        "pages": 157,
        "sha256": "d574d5fba68fb5bd",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "stm32l073rzt3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l073rzt3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0df9d7683e042aa3ef60ee51c7f117655d1cc3f7953a8f1067420c39bd5ed872",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}