HCM3043-QFN48

{
  "slug": "hcm3043-qfn48",
  "version": "0.1.0",
  "type": "component",
  "description": "XHSC Microcontrollers (MCU/MPU/SOC), QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "hcm3043-qfn48",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "hcm3043-qfn48.kicad_sym",
    "hcm3043-qfn48.kicad_mod",
    "hcm3043-qfn48.glb",
    "hcm3043-qfn48.step",
    "hcm3043-qfn48.lbr",
    "docs/hero.png",
    "docs/hcm3043-qfn48-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "hcm3043-qfn48-hero.glb",
    "hcm3043-qfn48-hero.overlay.json",
    "hcm3043-qfn48-etched.glb"
  ],
  "component": {
    "mpn": "HCM3043-QFN48",
    "manufacturer": "XHSC",
    "package": "QFN-48-EP(7x7)",
    "pin_count": 49,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917528777404416",
    "parts": {
      "symbol": "hcm3043-qfn48.kicad_sym",
      "footprint": "hcm3043-qfn48.kicad_mod",
      "model_3d": "hcm3043-qfn48-hero.glb",
      "model_3d_plain": "hcm3043-qfn48-etched.glb",
      "model_3d_step": "hcm3043-qfn48-etched.step",
      "model_3d_step_plain": "hcm3043-qfn48.step",
      "lbr": "hcm3043-qfn48.lbr"
    },
    "distributor_links": {
      "lcsc": "C784708"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T20:30:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "XTHI",
        "type": "input",
        "description": "External high-speed crystal/resonator input for the 4-32 MHz XTH oscillator, with injection current limited to ±5 mA."
      },
      {
        "number": "2",
        "name": "XTHO",
        "type": "output",
        "description": "External high-speed crystal/resonator output for the 4-32 MHz XTH oscillator."
      },
      {
        "number": "3",
        "name": "RESETB",
        "type": "input",
        "description": "Active-low reset input (CMOS) with a non-disconnectable weak pull-up of about 80 kΩ, VIL max 0.8 V and VIH min 0.8×VCC, injection current ±5 mA."
      },
      {
        "number": "4",
        "name": "PC00",
        "type": "bidirectional",
        "description": "General-purpose I/O (PC00) multiplexed with UART1_CTS, ADC input AIN10 and comparator inputs VC0_INP0 / VC1_INN0."
      },
      {
        "number": "5",
        "name": "PC01",
        "type": "bidirectional",
        "description": "General-purpose I/O (PC01) multiplexed with TIM5_CHB, UART1_RTS, ADC input AIN11 and comparator inputs VC0_INP1 / VC1_INN1."
      },
      {
        "number": "6",
        "name": "PC02",
        "type": "bidirectional",
        "description": "General-purpose I/O (PC02) multiplexed with SPI1_MISO, ADC input AIN12 and comparator inputs VC0_INP2 / VC1_INN2."
      },
      {
        "number": "7",
        "name": "PC03",
        "type": "bidirectional",
        "description": "General-purpose I/O (PC03) multiplexed with SPI1_MOSI, ADC input AIN13 and comparator inputs VC0_INP3 / VC1_INN3."
      },
      {
        "number": "8",
        "name": "AVCC_MCU",
        "type": "power_in",
        "description": "Analog supply for the MCU (ADC, comparators, OPA); decoupling capacitor should be placed close to the pin."
      },
      {
        "number": "9",
        "name": "PA00",
        "type": "bidirectional",
        "description": "General-purpose I/O (PA00) multiplexed with UART1_CTS, timer functions, VC0_OUT, ADC input AIN0 and comparator inputs."
      },
      {
        "number": "10",
        "name": "PA01",
        "type": "bidirectional",
        "description": "General-purpose I/O (PA01) multiplexed with UART1_RTS, timer functions, HCLK_OUT, SPI1_MOSI, ADC input AIN1 and comparator inputs."
      },
      {
        "number": "11",
        "name": "PA03",
        "type": "bidirectional",
        "description": "General-purpose I/O (PA03) multiplexed with UART1_RXD, timer functions, SPI1_CS, ADC input AIN3 and comparator input VC0_INP7."
      },
      {
        "number": "12",
        "name": "PA04",
        "type": "bidirectional",
        "description": "General-purpose I/O (PA04) multiplexed with SPI0_CS, UART1_TXD, PCA_CH4, LVD_OUT, ADC input AIN4 and comparator input VC0_INP8."
      },
      {
        "number": "13",
        "name": "PA05",
        "type": "bidirectional",
        "description": "General-purpose I/O (PA05) multiplexed with SPI0_SCK, TIM0_ETR, PCA_ECI, XTL_OUT/XTH_OUT, ADC input AIN5 and comparator input VC0_INP9."
      },
      {
        "number": "14",
        "name": "PA06",
        "type": "bidirectional",
        "description": "General-purpose I/O (PA06) multiplexed with SPI0_MISO, PCA_CH0, TIM3_BK, VC0_OUT, ADC input AIN6 and comparator input VC0_INP10."
      },
      {
        "number": "15",
        "name": "PA07",
        "type": "bidirectional",
        "description": "General-purpose I/O (PA07) multiplexed with SPI0_MOSI, PCA_CH1, HCLK_OUT, VC1_OUT, ADC input AIN7 and comparator input VC0_INP11."
      },
      {
        "number": "16",
        "name": "PB00",
        "type": "bidirectional",
        "description": "General-purpose I/O (PB00) multiplexed with PCA_CH2, TIM3_CH1B, TIM5_CHB, RCH/RCL/PLL outputs, ADC input AIN8 and comparator inputs."
      },
      {
        "number": "17",
        "name": "PB01",
        "type": "bidirectional",
        "description": "General-purpose I/O (PB01) multiplexed with PCA_CH3, PCLK_OUT, TIM3_CH2B and TIM6_CHB; analog alternate functions are not in the provided text."
      },
      {
        "number": "18",
        "name": "PB02",
        "type": "bidirectional",
        "description": "General-purpose I/O (PB02) multiplexed with PCA_ECI, TIM4_CHA, TIM1_BK, TIM0_BK and TIM2_BK; analog alternate functions are not in the provided text."
      },
      {
        "number": "19",
        "name": "PB10",
        "type": "bidirectional",
        "description": "General-purpose I/O (PB10) multiplexed with I2C1_SCL, SPI1_SCK, TIM1_CHA, TIM3_CH1A and UART1_RTS."
      },
      {
        "number": "20",
        "name": "PB11",
        "type": "bidirectional",
        "description": "General-purpose I/O (PB11) multiplexed with I2C1_SDA, TIM1_CHB, TIM2_GATE, TIM6_CHA and UART1_CTS."
      },
      {
        "number": "21",
        "name": "VSS_DRIVER",
        "type": "power_in",
        "description": "Ground reference for the gate driver; all gate-driver absolute maximum ratings are referenced to this pin."
      },
      {
        "number": "22",
        "name": "LO3",
        "type": "output",
        "description": "Low-side gate driver output for phase 3 (1 A source/sink drive capability)."
      },
      {
        "number": "23",
        "name": "LO2",
        "type": "output",
        "description": "Low-side gate driver output for phase 2 (1 A source/sink drive capability)."
      },
      {
        "number": "24",
        "name": "LO1",
        "type": "output",
        "description": "Low-side gate driver output for phase 1 (1 A source/sink drive capability)."
      },
      {
        "number": "25",
        "name": "VCC_DRIVER",
        "type": "power_in",
        "description": "Low-side and logic supply for the gate driver, absolute maximum -0.3 V to 20 V and operating range 5.5 V to 20 V."
      },
      {
        "number": "26",
        "name": "VS3",
        "type": "passive",
        "description": "High-side floating supply offset (phase 3 output reference), rated VB3−20 V to VB3+0.3 V."
      },
      {
        "number": "27",
        "name": "HO3",
        "type": "output",
        "description": "High-side gate driver output for phase 3, referenced to VS3."
      },
      {
        "number": "28",
        "name": "VB3",
        "type": "power_in",
        "description": "High-side floating supply for phase 3 driver; absolute maximum 45 V referenced to VSS_DRIVER."
      },
      {
        "number": "29",
        "name": "VS2",
        "type": "passive",
        "description": "High-side floating supply offset (phase 2 output reference), rated VB2−20 V to VB2+0.3 V."
      },
      {
        "number": "30",
        "name": "HO2",
        "type": "output",
        "description": "High-side gate driver output for phase 2, referenced to VS2."
      },
      {
        "number": "31",
        "name": "VB2",
        "type": "power_in",
        "description": "High-side floating supply for phase 2 driver; absolute maximum 45 V referenced to VSS_DRIVER."
      },
      {
        "number": "32",
        "name": "VS1",
        "type": "passive",
        "description": "High-side floating supply offset (phase 1 output reference), rated VB1−20 V to VB1+0.3 V."
      },
      {
        "number": "33",
        "name": "HO1",
        "type": "output",
        "description": "High-side gate driver output for phase 1, referenced to VS1."
      },
      {
        "number": "34",
        "name": "VB1",
        "type": "power_in",
        "description": "High-side floating supply for phase 1 driver; absolute maximum 45 V referenced to VSS_DRIVER."
      },
      {
        "number": "35",
        "name": "VSS_LDO",
        "type": "power_in",
        "description": "Ground reference for the internal LDO regulator and the MCU supply limits."
      },
      {
        "number": "36",
        "name": "VIN_LDO",
        "type": "power_in",
        "description": "LDO input: 5.5 V to 15 V with Hall sensor (60 mA) or 5.5 V to 25 V sensorless (30 mA)."
      },
      {
        "number": "37",
        "name": "VOUT_LDO",
        "type": "power_out",
        "description": "Regulated 5.0 V (±2%) LDO output, rated up to 30 mA sensorless or 60 mA with Hall sensor."
      },
      {
        "number": "38",
        "name": "TEST",
        "type": "passive",
        "description": "Test pin; the provided datasheet text gives no function, limit or connection requirement for it."
      },
      {
        "number": "39",
        "name": "PA13",
        "type": "bidirectional",
        "description": "General-purpose I/O (PA13) multiplexed with IR_OUT, UART0_RXD, LVD_OUT and TIM3_ETR."
      },
      {
        "number": "40",
        "name": "PD07",
        "type": "bidirectional",
        "description": "General-purpose I/O (PD07) multiplexed with I2C1_SDA and UART0_RTS."
      },
      {
        "number": "41",
        "name": "PA14",
        "type": "bidirectional",
        "description": "General-purpose I/O (PA14) multiplexed with UART1_TXD, UART0_TXD, TIM3_CH2A, LVD_OUT, and RCH/RCL/PLL outputs."
      },
      {
        "number": "42",
        "name": "PB03",
        "type": "bidirectional",
        "description": "General-purpose I/O (PB03) multiplexed with SPI0_SCK, TIM0_CHB, TIM1_GATE, TIM3_CH0A and XTL/XTH outputs."
      },
      {
        "number": "43",
        "name": "PB04",
        "type": "bidirectional",
        "description": "General-purpose I/O (PB04) multiplexed with SPI0_MISO, PCA_CH0, TIM2_BK, UART0_CTS, TIM2_GATE, TIM3_CH0B, and comparator inputs VC0_INP12 / VC1_INP12 / VC1_INN10."
      },
      {
        "number": "44",
        "name": "PB07",
        "type": "bidirectional",
        "description": "General-purpose I/O (PB07) multiplexed with I2C0_SDA, UART0_RXD, TIM2_CHB, TIM0_CHB, LVD_IN2 and comparator inputs VC0_INP15 / VC1_INP15."
      },
      {
        "number": "45",
        "name": "PD03",
        "type": "input",
        "description": "MODE pin: high level enters ISP online programming mode, low level selects user mode."
      },
      {
        "number": "46",
        "name": "PB08",
        "type": "bidirectional",
        "description": "General-purpose I/O (PB08) multiplexed with I2C0_SCL, TIM1_CHA, TIM2_CHA, TIM0_GATE, TIM3_CH2A, UART0_TXD and LVD_IN1 low-voltage detect input."
      },
      {
        "number": "47",
        "name": "VCC_MCU",
        "type": "power_in",
        "description": "Main MCU digital supply, absolute maximum 5.5 V and operating range 1.8 V to 5.5 V."
      },
      {
        "number": "48",
        "name": "VCAP",
        "type": "power_out",
        "description": "LDO core-supply output for internal circuits only; requires an external decoupling capacitor of at least 1 µF."
      },
      {
        "number": "49",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Manufacturer mismatch: the datasheet is issued by 华大半导体 (HDSC) for part HCM3043, not 'XHSC'. Confirm; Package mismatch: the hint says QFN-48-EP(7x7), but the datasheet only shows QFN48 (7x7) with no exp; Pages 24-25 (the detailed alternate-function table for pins 17-42) are not in the provided text. Ana",
          "exposed pad 49 added from the footprint",
          "18/49 pins cited to the wrong page (name found elsewhere): ['17:PB01@p27', '19:PB10@p27', '20:PB11@p27', '21:VSS_DRIVER@p38']"
        ],
        "pages_sent": 37,
        "cost_usd": 0.1563,
        "at": "2026-10-17T20:28:54"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917528777404416",
        "pages": 69,
        "sha256": "421e9a181a504351",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "hcm3043-qfn48.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hcm3043-qfn48-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d342a4d06f18ef5a52ee9cbd7c694ac2eaf41c0a43c373f9061e2293377e9f26",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}