STM32F042K6U6TR

{
  "slug": "stm32f042k6u6tr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-32(5x5). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32f042k6u6tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32f042k6u6tr.kicad_sym",
    "stm32f042k6u6tr.kicad_mod",
    "stm32f042k6u6tr.glb",
    "stm32f042k6u6tr.step",
    "stm32f042k6u6tr.lbr",
    "docs/hero.png",
    "docs/stm32f042k6u6tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "component": {
    "mpn": "STM32F042K6U6TR",
    "manufacturer": "STMicroelectronics",
    "package": "UFQFPN-32(5x5)",
    "pin_count": 31,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901606733176832",
    "parts": {
      "symbol": "stm32f042k6u6tr.kicad_sym",
      "footprint": "stm32f042k6u6tr.kicad_mod",
      "model_3d": "stm32f042k6u6tr-etched.glb",
      "model_3d_plain": "stm32f042k6u6tr.glb",
      "model_3d_step": "stm32f042k6u6tr-etched.step",
      "model_3d_step_plain": "stm32f042k6u6tr.step",
      "lbr": "stm32f042k6u6tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2053439",
      "digikey": "497-19321-2-ND",
      "mouser": "511-STM32F042K6U6TR"
    },
    "distributor_check": {
      "checked_at": "2026-10-01T18:08:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-19321-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32F042K6U6TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply, 2.0 to 3.6 V"
      },
      {
        "number": "2",
        "name": "PF0-OSC_IN",
        "type": "bidirectional",
        "description": "GPIO or external oscillator input for 4-32 MHz crystal with CRS_SYNC and I2C1_SDA alternate functions"
      },
      {
        "number": "3",
        "name": "PF1-OSC_OUT",
        "type": "bidirectional",
        "description": "GPIO or external oscillator output for crystal with I2C1_SCL alternate function"
      },
      {
        "number": "4",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Device reset input / internal reset output (active low) with embedded weak pull-up resistor"
      },
      {
        "number": "5",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power supply, from VDD to 3.6 V (2.4 V minimum if ADC is used), must be >= VDD"
      },
      {
        "number": "6",
        "name": "PA0",
        "type": "bidirectional",
        "description": "TTa I/O with USART2_CTS, TIM2_CH1_ETR, TSC_G1_IO1, RTC_TAMP2, WKUP1, ADC_IN0 alternate functions"
      },
      {
        "number": "7",
        "name": "PA1",
        "type": "bidirectional",
        "description": "TTa I/O with USART2_RTS, TIM2_CH2, TSC_G1_IO2, EVENTOUT, ADC_IN1 alternate functions"
      },
      {
        "number": "8",
        "name": "PA2",
        "type": "bidirectional",
        "description": "TTa I/O with USART2_TX, TIM2_CH3, TSC_G1_IO3, ADC_IN2, WKUP4 alternate functions"
      },
      {
        "number": "9",
        "name": "PA3",
        "type": "bidirectional",
        "description": "TTa I/O with USART2_RX, TIM2_CH4, TSC_G1_IO4, ADC_IN3 alternate functions"
      },
      {
        "number": "10",
        "name": "PA4",
        "type": "bidirectional",
        "description": "TTa I/O with SPI1_NSS, I2S1_WS, TIM14_CH1, TSC_G2_IO1, USART2_CK, USB_NOE, ADC_IN4 alternate functions"
      },
      {
        "number": "11",
        "name": "PA5",
        "type": "bidirectional",
        "description": "TTa I/O with SPI1_SCK, I2S1_CK, CEC, TIM2_CH1_ETR, TSC_G2_IO2, ADC_IN5 alternate functions"
      },
      {
        "number": "12",
        "name": "PA6",
        "type": "bidirectional",
        "description": "TTa I/O with SPI1_MISO, I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1, TSC_G2_IO3, EVENTOUT, ADC_IN6 alternate functions"
      },
      {
        "number": "13",
        "name": "PA7",
        "type": "bidirectional",
        "description": "TTa I/O with SPI1_MOSI, I2S1_SD, TIM3_CH2, TIM14_CH1, TIM1_CH1N, TIM17_CH1, TSC_G2_IO4, EVENTOUT, ADC_IN7 alternate functions"
      },
      {
        "number": "14",
        "name": "PB0",
        "type": "bidirectional",
        "description": "TTa I/O with TIM3_CH3, TIM1_CH2N, TSC_G3_IO2, EVENTOUT, ADC_IN8 alternate functions"
      },
      {
        "number": "15",
        "name": "PB1",
        "type": "bidirectional",
        "description": "TTa I/O with TIM3_CH4, TIM14_CH1, TIM1_CH3N, TSC_G3_IO3, ADC_IN9 alternate functions"
      },
      {
        "number": "16",
        "name": "PB2",
        "type": "bidirectional",
        "description": "FT 5V-tolerant I/O with TSC_G3_IO4 alternate function for capacitive sensing"
      },
      {
        "number": "17",
        "name": "VDDIO2",
        "type": "power_in",
        "description": "I/O power supply for high-performance I/Os, 1.65 to 3.6 V, independent from VDD but VDD must be present first"
      },
      {
        "number": "18",
        "name": "PA8",
        "type": "bidirectional",
        "description": "FT I/O supplied by VDDIO2 with USART1_CK, TIM1_CH1, EVENTOUT, MCO, CRS_SYNC alternate functions"
      },
      {
        "number": "19",
        "name": "PA9",
        "type": "bidirectional",
        "description": "FTf I/O supplied by VDDIO2 with USART1_TX, TIM1_CH2, TSC_G4_IO1, I2C1_SCL alternate functions"
      },
      {
        "number": "20",
        "name": "PA10",
        "type": "bidirectional",
        "description": "FTf I/O supplied by VDDIO2 with USART1_RX, TIM1_CH3, TIM17_BKIN, TSC_G4_IO2, I2C1_SDA alternate functions"
      },
      {
        "number": "21",
        "name": "PA11",
        "type": "bidirectional",
        "description": "FTf I/O supplied by VDDIO2 with CAN_RX, USART1_CTS, TIM1_CH4, TSC_G4_IO3, EVENTOUT, I2C1_SCL, USB_DM alternate functions; can be remapped to PA9 position using SYSCFG_CFGR1"
      },
      {
        "number": "22",
        "name": "PA12",
        "type": "bidirectional",
        "description": "FTf I/O supplied by VDDIO2 with CAN_TX, USART1_RTS, TIM1_ETR, TSC_G4_IO4, EVENTOUT, I2C1_SDA, USB_DP alternate functions; can be remapped to PA10 position using SYSCFG_CFGR1"
      },
      {
        "number": "23",
        "name": "PA13",
        "type": "bidirectional",
        "description": "FT I/O supplied by VDDIO2 configured as SWDIO at reset with IR_OUT, USB_NOE alternate functions"
      },
      {
        "number": "24",
        "name": "PA14",
        "type": "bidirectional",
        "description": "FT I/O supplied by VDDIO2 configured as SWCLK at reset with USART2_TX alternate function"
      },
      {
        "number": "25",
        "name": "PA15",
        "type": "bidirectional",
        "description": "FT I/O supplied by VDDIO2 with SPI1_NSS, I2S1_WS, USART2_RX, TIM2_CH1_ETR, EVENTOUT, USB_NOE alternate functions"
      },
      {
        "number": "26",
        "name": "PB3",
        "type": "bidirectional",
        "description": "FT I/O with SPI1_SCK, I2S1_CK, TIM2_CH2, TSC_G5_IO1, EVENTOUT alternate functions"
      },
      {
        "number": "27",
        "name": "PB4",
        "type": "bidirectional",
        "description": "FT I/O with SPI1_MISO, I2S1_MCK, TIM17_BKIN, TIM3_CH1, TSC_G5_IO2, EVENTOUT alternate functions"
      },
      {
        "number": "28",
        "name": "PB5",
        "type": "bidirectional",
        "description": "FT I/O with SPI1_MOSI, I2S1_SD, I2C1_SMBA, TIM16_BKIN, TIM3_CH2, WKUP6 alternate functions"
      },
      {
        "number": "29",
        "name": "PB6",
        "type": "bidirectional",
        "description": "FTf I/O with I2C1_SCL, USART1_TX, TIM16_CH1N, TSC_G5_IO3 alternate functions"
      },
      {
        "number": "30",
        "name": "PB7",
        "type": "bidirectional",
        "description": "FTf I/O with I2C1_SDA, USART1_RX, TIM17_CH1N, TSC_G5_IO4 alternate functions"
      },
      {
        "number": "0",
        "name": "VSS/VSSA (Exposed Pad)",
        "type": "power_in",
        "description": "Ground for analog and digital domains, exposed die pad on underside of package must be soldered to PCB ground"
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901606733176832",
        "pages": 117,
        "sha256": "7af7ec8f5a596b23",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 31,
        "described": 31,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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}