STM32F334R8T6TR

{
  "slug": "stm32f334r8t6tr",
  "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",
    "stm32f334r8t6tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32f334r8t6tr.kicad_sym",
    "stm32f334r8t6tr.kicad_mod",
    "stm32f334r8t6tr.glb",
    "stm32f334r8t6tr.step",
    "stm32f334r8t6tr.lbr",
    "docs/hero.png",
    "docs/stm32f334r8t6tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32f334r8t6tr-hero.glb",
    "stm32f334r8t6tr-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32F334R8T6TR",
    "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/8588922789168758785",
    "parts": {
      "symbol": "stm32f334r8t6tr.kicad_sym",
      "footprint": "stm32f334r8t6tr.kicad_mod",
      "model_3d": "stm32f334r8t6tr-hero.glb",
      "model_3d_plain": "stm32f334r8t6tr.glb",
      "model_3d_step": "stm32f334r8t6tr-etched.step",
      "model_3d_step_plain": "stm32f334r8t6tr.step",
      "lbr": "stm32f334r8t6tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C1342363",
      "digikey": "497-STM32F334R8T6TR-ND",
      "mouser": "511-STM32F334R8T6TR"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T23:26:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-STM32F334R8T6TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32F334R8T6TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup power supply for the RTC and backup registers."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O supplied through the power switch, which sinks only 3 mA; in output mode it must not exceed 2 MHz with a 30 pF load and must not be used as a current source such as an LED driver."
      },
      {
        "number": "3",
        "name": "PC14 / OSC32_IN",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O supplied through the power switch (3 mA sink limit, maximum 2 MHz with 30 pF load in output mode, not to be used as a current source) that also serves as the 32 kHz oscillator input OSC32_IN."
      },
      {
        "number": "4",
        "name": "PC15 / OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O supplied through the power switch (3 mA sink limit, maximum 2 MHz with 30 pF load in output mode, not to be used as a current source) that also serves as the 32 kHz oscillator output OSC32_OUT."
      },
      {
        "number": "5",
        "name": "PF0 / OSC_IN",
        "type": "bidirectional",
        "description": "5 V tolerant I/O that serves as the crystal oscillator input OSC_IN (4 to 32 MHz crystal), with alternate function TIM1_CH3N."
      },
      {
        "number": "6",
        "name": "PF1 / OSC_OUT",
        "type": "bidirectional",
        "description": "5 V tolerant I/O that serves as the crystal oscillator output OSC_OUT (4 to 32 MHz crystal)."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional active-low device reset input and internal reset output with an embedded weak pull-up resistor."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions EVENTOUT and TIM1_CH1 and additional function ADC12_IN6."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions EVENTOUT and TIM1_CH2 and additional function ADC12_IN7."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions EVENTOUT and TIM1_CH3 and additional function ADC12_IN8."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions EVENTOUT, TIM1_CH4 and TIM1_BKIN2 and additional function ADC12_IN9."
      },
      {
        "number": "12",
        "name": "VSSA/VREF-",
        "type": "power_in",
        "description": "Analog ground and negative reference voltage."
      },
      {
        "number": "13",
        "name": "VDDA/VREF+",
        "type": "power_in",
        "description": "Analog power supply (2.0 to 3.6 V) and positive reference voltage."
      },
      {
        "number": "14",
        "name": "PA0",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM2_CH1/TIM2_ETR, TSC_G1_IO1, USART2_CTS and EVENTOUT, and additional functions ADC1_IN1, RTC_TAMP2/WKUP1."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM2_CH2, TSC_G1_IO2, USART2_RTS_DE and TIM15_CH1N, and additional functions ADC1_IN2 and RTC_REFIN."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM2_CH3, TSC_G1_IO3, USART2_TX, COMP2_OUT and TIM15_CH1, and additional functions ADC1_IN3 and COMP2_INM."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM2_CH4, TSC_G1_IO4, USART2_RX and TIM15_CH2, and additional function ADC1_IN4."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply (2.0 to 3.6 V)."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC with reduced touch sensing sensitivity (recommended as sampling capacitor I/O), with alternate functions TIM3_CH2, TSC_G2_IO1, SPI1_NSS, USART2_CK, and additional functions ADC2_IN1, DAC1_OUT1, COMP2_INM, COMP4_INM, COMP6_INM."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC with reduced touch sensing sensitivity (recommended as sampling capacitor I/O), with alternate functions TIM2_CH1/TIM2_ETR, TSC_G2_IO2, SPI1_SCK, and additional functions ADC2_IN2, DAC1_OUT2, OPAMP2_VINM."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC with reduced touch sensing sensitivity (recommended as sampling capacitor I/O), with alternate functions TIM16_CH1, TIM3_CH1, TSC_G2_IO3, SPI1_MISO, TIM1_BKIN, OPAMP2_DIG, and additional functions ADC2_IN3, DAC2_OUT1, OPAMP2_VOUT."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM17_CH1, TIM3_CH2, TSC_G2_IO4, SPI1_MOSI, TIM1_CH1N and EVENTOUT, and additional functions ADC2_IN4, COMP2_INP, OPAMP2_VINP."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions EVENTOUT, TIM1_ETR and USART1_TX, and additional function ADC2_IN5."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions EVENTOUT, TIM15_BKIN, TSC_G3_IO1 and USART1_RX, and additional functions ADC2_IN11 and OPAMP2_VINM."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM3_CH3, TSC_G3_IO2, TIM1_CH2N and EVENTOUT, and additional functions ADC1_IN11, COMP4_INP, OPAMP2_VINP."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM3_CH4, TSC_G3_IO3, TIM1_CH3N, COMP4_OUT, HRTIM1_SCOUT and EVENTOUT, and additional function ADC1_IN12."
      },
      {
        "number": "28",
        "name": "PB2",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TSC_G3_IO4, HRTIM_SCIN and EVENTOUT, and additional functions ADC2_IN12 and COMP4_INM."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "3.3 V tolerant standard I/O (TT, not directly connected to the ADC), with alternate functions TIM2_CH3, TSC_SYNC, USART3_TX, HRTIM1_FLT3 and EVENTOUT."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM2_CH4, TSC_G6_IO1, USART3_RX, HRTIM1_FLT4 and EVENTOUT, and additional function COMP6_INP."
      },
      {
        "number": "31",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply (2.0 to 3.6 V)."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TSC_G6_IO2, TIM1_BKIN, USART3_CK, HRTIM1_CHC1 and EVENTOUT, and additional function ADC2_IN13."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TSC_G6_IO3, TIM1_CH1N, USART3_CTS, HRTIM1_CHC2 and EVENTOUT, and additional function ADC1_IN13."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM15_CH1, TSC_G6_IO4, TIM1_CH2N, USART3_RTS_DE, HRTIM1_CHD1 and EVENTOUT, and additional functions ADC2_IN14 and OPAMP2_VINP."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "3.3 V tolerant I/O directly connected to the ADC, with alternate functions TIM15_CH2, TIM15_CH1N, TIM1_CH3N, HRTIM1_CHD2 and EVENTOUT, and additional functions ADC2_IN15, COMP6_INM and RTC_REFIN."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, TIM3_CH1, HRTIM1_EEV10 and COMP6_OUT."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, TIM3_CH2 and HRTIM1_FLT5."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, TIM3_CH3 and HRTIM1_CHE1."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, TIM3_CH4 and HRTIM1_CHE2."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions MCO, TIM1_CH1, USART1_CK, HRTIM1_CHA1 and EVENTOUT."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TSC_G4_IO1, TIM1_CH2, USART1_TX, TIM15_BKIN, TIM2_CH3, HRTIM1_CHA2 and EVENTOUT."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM17_BKIN, TSC_G4_IO2, TIM1_CH3, USART1_RX, COMP6_OUT, TIM2_CH4, HRTIM1_CHB1 and EVENTOUT."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM1_CH1N, USART1_CTS, CAN_RX, TIM1_CH4, TIM1_BKIN2, HRTIM1_CHB2 and EVENTOUT."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM16_CH1, TIM1_CH2N, USART1_RTS_DE, COMP2_OUT, CAN_TX, TIM1_ETR, HRTIM1_FLT1 and EVENTOUT."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions JTMS/SWDAT, TIM16_CH1N, TSC_G4_IO3, IR_OUT, USART3_CTS and EVENTOUT."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply (2.0 to 3.6 V)."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant, FM+ capable (FTf) I/O with alternate functions JTCK/SWCLK, TSC_G4_IO4, I2C1_SDA, TIM1_BKIN, USART2_TX and EVENTOUT."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant, FM+ capable (FTf) I/O with alternate functions JTDI, TIM2_CH1/TIM2_ETR, TSC_SYNC, I2C1_SCL, SPI1_NSS, USART2_RX, TIM1_BKIN, HRTIM1_FLT2 and EVENTOUT."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT and USART3_TX."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, HRTIM1_EEV2 and USART3_RX."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, HRTIM1_EEV1 and USART3_CK."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT and TIM3_ETR."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions JTDO/TRACESWO, TIM2_CH2, TSC_G5_IO1, SPI1_SCK, USART2_TX, TIM3_ETR, HRTIM1_SCOUT, HRTIM1_EEV9 and EVENTOUT."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions NJTRST, TIM16_CH1, TIM3_CH1, TSC_G5_IO2, SPI1_MISO, USART2_RX, TIM17_BKIN, HRTIM1_EEV7 and EVENTOUT."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM16_BKIN, TIM3_CH2, I2C1_SMBA, SPI1_MOSI, USART2_CK, TIM17_CH1, HRTIM1_EEV6 and EVENTOUT."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant, FM+ capable (FTf) I/O with alternate functions TIM16_CH1N, TSC_G5_IO3, I2C1_SCL, USART1_TX, HRTIM1_SCIN, HRTIM1_EEV4 and EVENTOUT."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant, FM+ capable (FTf) I/O with alternate functions TIM17_CH1N, TSC_G5_IO4, I2C1_SDA, USART1_RX, TIM3_CH4, HRTIM1_EEV3 and EVENTOUT."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 input pin that selects the boot configuration (Flash, system memory or SRAM)."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant, FM+ capable (FTf) I/O with alternate functions TIM16_CH1, TSC_SYNC, I2C1_SCL, USART3_RX, CAN_RX, TIM1_BKIN, HRTIM1_EEV8 and EVENTOUT."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant, FM+ capable (FTf) I/O with alternate functions TIM17_CH1, I2C1_SDA, IR_OUT, USART3_TX, COMP2_OUT, CAN_TX, HRTIM1_EEV5 and EVENTOUT."
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply (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-number mapping was taken from the LQFP64 column of Table 13 (pin definitions, pp. 36-41). The Fi; Pins 1-4 (VBAT, PC13, PC14, PC15) and the PC13-PC15 limits come from footnote 1: these GPIOs are sup; On LQFP64, VSSA/VREF- (pin 12) and VDDA/VREF+ (pin 13) are single pins. Separate VREF+ and VDDA ball"
        ],
        "pages_sent": 48,
        "cost_usd": 0.2499,
        "at": "2026-10-10T23:26:01"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588922789168758785",
        "pages": 125,
        "sha256": "4727fd8b6c87c9e0",
        "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": "stm32f334r8t6tr.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": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32f334r8t6tr-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": "53079fe62ef76c048a7c1e61dc6ad6f46eca6dc1dda177439c75ff747ca81cea",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}