STM32F334K8T6TR

{
  "schema_version": 1,
  "type": "component",
  "slug": "stm32f334k8t6tr",
  "title": "STM32F334K8T6TR",
  "brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32f334k8t6tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STM32F334K8T6TR",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-32(7x7)",
    "pin_count": 32,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590379975020359680",
    "parts": {
      "symbol": "stm32f334k8t6tr.kicad_sym",
      "footprint": "stm32f334k8t6tr.kicad_mod",
      "model_3d": "stm32f334k8t6tr-hero.glb",
      "model_3d_plain": "stm32f334k8t6tr.glb",
      "model_3d_step": "stm32f334k8t6tr-etched.step",
      "model_3d_step_plain": "stm32f334k8t6tr.step",
      "lbr": "stm32f334k8t6tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C3220759",
      "digikey": "497-STM32F334K8T6TR-ND",
      "mouser": "511-STM32F334K8T6TR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T18:08:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-STM32F334K8T6TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32F334K8T6TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply pin; the VDD and VDDA operating range is 2.0 to 3.6 V."
      },
      {
        "number": "2",
        "name": "PF0 / OSC_IN",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O that also serves as the external crystal oscillator input OSC_IN; alternate function TIM1_CH3N."
      },
      {
        "number": "3",
        "name": "PF1 / OSC_OUT",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O that also serves as the external crystal oscillator output OSC_OUT."
      },
      {
        "number": "4",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bi-directional active-low device reset input and internal reset output, with an embedded weak pull-up resistor."
      },
      {
        "number": "5",
        "name": "VDDA/VREF+",
        "type": "power_in",
        "description": "Analog power supply and positive reference voltage pin for the analog peripherals (ADC, DAC, comparators, OPAMP)."
      },
      {
        "number": "6",
        "name": "PA0",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC; alternate functions include TIM2_CH1/TIM2_ETR, TSC_G1_IO1, USART2_CTS and EVENTOUT, additional functions ADC1_IN1 and RTC_TAMP2/WKUP1."
      },
      {
        "number": "7",
        "name": "PA1",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC; alternate functions include TIM2_CH2, TSC_G1_IO2, USART2_RTS_DE and TIM15_CH1N, additional functions ADC1_IN2 and RTC_REFIN."
      },
      {
        "number": "8",
        "name": "PA2",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC; alternate functions include TIM2_CH3, TSC_G1_IO3, USART2_TX, COMP2_OUT and TIM15_CH1, additional functions ADC1_IN3 and COMP2_INM."
      },
      {
        "number": "9",
        "name": "PA3",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC; alternate functions include TIM2_CH4, TSC_G1_IO4, USART2_RX and TIM15_CH2, additional function ADC1_IN4."
      },
      {
        "number": "10",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC with reduced touch sensing sensitivity, so use as sampling capacitor I/O is recommended; alternate functions include TIM3_CH2, TSC_G2_IO1, SPI1_NSS and USART2_CK, additional functions ADC2_IN1, DAC1_OUT1 and COMP2/4/6_INM."
      },
      {
        "number": "11",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC with reduced touch sensing sensitivity; alternate functions include TIM2_CH1/TIM2_ETR, TSC_G2_IO2 and SPI1_SCK, additional functions ADC2_IN2, DAC1_OUT2 and OPAMP2_VINM."
      },
      {
        "number": "12",
        "name": "PA6",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC; alternate functions include TIM16_CH1, TIM3_CH1, TSC_G2_IO3, SPI1_MISO and TIM1_BKIN, additional functions ADC2_IN3, DAC2_OUT1, OPAMP2_DIG and OPAMP2_VOUT."
      },
      {
        "number": "13",
        "name": "PA7",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC; alternate functions include TIM17_CH1, TIM3_CH2, TSC_G2_IO4, SPI1_MOSI and TIM1_CH1N, additional functions ADC2_IN4, COMP2_INP and OPAMP2_VINP."
      },
      {
        "number": "14",
        "name": "PB0",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC; alternate functions include TIM3_CH3, TSC_G3_IO2 and TIM1_CH2N, additional functions ADC1_IN11, COMP4_INP and OPAMP2_VINP."
      },
      {
        "number": "15",
        "name": "PB1",
        "type": "bidirectional",
        "description": "3.3 V tolerant TTa I/O connected directly to the ADC; alternate functions include TIM3_CH4, TSC_G3_IO3, TIM1_CH3N, COMP4_OUT and HRTIM1_SCOUT, additional function ADC1_IN12."
      },
      {
        "number": "16",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      },
      {
        "number": "17",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply pin; the VDD and VDDA operating range is 2.0 to 3.6 V."
      },
      {
        "number": "18",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions include MCO, TIM1_CH1, USART1_CK and HRTIM1_CHA1."
      },
      {
        "number": "19",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions include TSC_G4_IO1, TIM1_CH2, USART1_TX, TIM15_BKIN, TIM2_CH3 and HRTIM1_CHA2."
      },
      {
        "number": "20",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions include TIM17_BKIN, TSC_G4_IO2, TIM1_CH3, USART1_RX, COMP6_OUT, TIM2_CH4 and HRTIM1_CHB1."
      },
      {
        "number": "21",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions include TIM1_CH1N, USART1_CTS, CAN_RX, TIM1_CH4, TIM1_BKIN2 and HRTIM1_CHB2."
      },
      {
        "number": "22",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions include TIM16_CH1, TIM1_CH2N, USART1_RTS_DE, COMP2_OUT, CAN_TX, TIM1_ETR and HRTIM1_FLT1."
      },
      {
        "number": "23",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; the pin function after reset is JTMS/SWDAT, with alternate functions TIM16_CH1N, TSC_G4_IO3, IR_OUT and USART3_CTS."
      },
      {
        "number": "24",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FTf) I/O; the pin function after reset is JTCK/SWCLK, with alternate functions TSC_G4_IO4, I2C1_SDA, TIM1_BKIN and USART2_TX."
      },
      {
        "number": "25",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FTf) I/O; the pin function after reset is JTDI, with alternate functions TIM2_CH1/TIM2_ETR, TSC_SYNC, I2C1_SCL, SPI1_NSS, USART2_RX, TIM1_BKIN and HRTIM1_FLT2."
      },
      {
        "number": "26",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; the pin function after reset is JTDO/TRACESWO, with alternate functions TIM2_CH2, TSC_G5_IO1, SPI1_SCK, USART2_TX, TIM3_ETR and HRTIM1_EEV9."
      },
      {
        "number": "27",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; the pin function after reset is NJTRST, with alternate functions TIM16_CH1, TIM3_CH1, TSC_G5_IO2, SPI1_MISO, USART2_RX and TIM17_BKIN."
      },
      {
        "number": "28",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions include TIM16_BKIN, TIM3_CH2, I2C1_SMBA, SPI1_MOSI, USART2_CK, TIM17_CH1 and HRTIM1_EEV6."
      },
      {
        "number": "29",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FTf) I/O; alternate functions include TIM16_CH1N, TSC_G5_IO3, I2C1_SCL, USART1_TX, HRTIM1_SCIN and HRTIM1_EEV4."
      },
      {
        "number": "30",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FTf) I/O; alternate functions include TIM17_CH1N, TSC_G5_IO4, I2C1_SDA, USART1_RX, TIM3_CH4 and HRTIM1_EEV3."
      },
      {
        "number": "31",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 pin used for boot mode selection."
      },
      {
        "number": "32",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      }
    ],
    "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: Table 13 lists VSSA/VREF- as UFQFPN32 pin 6 and shows no LQFP32 pin (LQFP32 column is '-'), so it is; Table 13 lists the SWD/JTAG/NJTRST names as the pin function after reset; the primary I/O names are ; These pins are not bonded out on the LQFP32 package per Table 13 (LQFP32 column is '-') and are excl"
        ],
        "pages_sent": 48,
        "cost_usd": 0.2335,
        "at": "2026-10-08T18:08:23"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590379975020359680",
        "pages": 125,
        "sha256": "4727fd8b6c87c9e0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "stm32f334k8t6tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "be0e412f1c66fee70039b0e109e0cc7c823161dda97593718afa97569bc61ce3",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32f334k8t6tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f497e6c310f30e44a418a4592e46e2e0de44124ca075465d14c448fe4afc79ca",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "LQFP-32(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "32"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "stm32f334k8t6tr"
  ],
  "discovery_pitch": "STM32F334K8T6TR (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32f334k8t6tr.kicad_sym",
    "stm32f334k8t6tr.kicad_mod",
    "stm32f334k8t6tr.glb",
    "stm32f334k8t6tr.step",
    "stm32f334k8t6tr.lbr",
    "docs/hero.png",
    "docs/stm32f334k8t6tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32f334k8t6tr-hero.glb",
    "stm32f334k8t6tr-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}