CJC6811A

{
  "slug": "cjc6811a",
  "version": "0.1.0",
  "type": "component",
  "description": "ESHINE Microcontroller Units (MCUs/MPUs/SOCs), QFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "cjc6811a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cjc6811a.kicad_sym",
    "cjc6811a.kicad_mod",
    "cjc6811a.glb",
    "cjc6811a.step",
    "cjc6811a.lbr",
    "docs/hero.png",
    "docs/cjc6811a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cjc6811a-hero.glb",
    "cjc6811a-hero.overlay.json"
  ],
  "component": {
    "mpn": "CJC6811A",
    "manufacturer": "ESHINE",
    "package": "QFN-32(5x5)",
    "pin_count": 33,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/15f8aa0f869c4b0b4914520f10a01eb3.pdf",
    "parts": {
      "symbol": "cjc6811a.kicad_sym",
      "footprint": "cjc6811a.kicad_mod",
      "model_3d": "cjc6811a-hero.glb",
      "model_3d_plain": "cjc6811a.glb",
      "model_3d_step": "cjc6811a-etched.step",
      "model_3d_step_plain": "cjc6811a.step",
      "lbr": "cjc6811a.lbr"
    },
    "distributor_links": {
      "lcsc": "C7431488"
    },
    "distributor_check": {
      "checked_at": "2026-11-12T19:27:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "UART_TX",
        "type": "bidirectional",
        "description": "UART transmitter, also available as GPIO6."
      },
      {
        "number": "2",
        "name": "FLS_SO",
        "type": "bidirectional",
        "description": "SPI data output for boot flash."
      },
      {
        "number": "3",
        "name": "MCU_SPIB_SO",
        "type": "bidirectional",
        "description": "MCU SPI data output for boot flash (diagram label SPIB_SO)."
      },
      {
        "number": "4",
        "name": "MCU_SPIB_CSN",
        "type": "bidirectional",
        "description": "MCU SPI chip select for boot flash."
      },
      {
        "number": "5",
        "name": "FLS_SI",
        "type": "bidirectional",
        "description": "SPI data line for boot flash; the table comment says data out, which conflicts with the pin name."
      },
      {
        "number": "6",
        "name": "VDD33",
        "type": "power_in",
        "description": "Power supply for IO; the IO voltage is taken from VDD33 and can range from 2.8V to 3.6V."
      },
      {
        "number": "7",
        "name": "SPIB_CLK",
        "type": "bidirectional",
        "description": "SPI clock for boot flash (diagram label SPIB_SCK)."
      },
      {
        "number": "8",
        "name": "SPIB_SI",
        "type": "bidirectional",
        "description": "SPI data input for boot flash."
      },
      {
        "number": "9",
        "name": "DVDD18",
        "type": "power_out",
        "description": "1.8V regulator output for IO, normally 2.2V as stated in the table."
      },
      {
        "number": "10",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "General-purpose IO GPIO3."
      },
      {
        "number": "11",
        "name": "CLK_XTALa",
        "type": "bidirectional",
        "description": "12MHz oscillator input, default not connected."
      },
      {
        "number": "12",
        "name": "FLS_VDD33",
        "type": "power_in",
        "description": "Power supply for IO on the flash interface."
      },
      {
        "number": "13",
        "name": "BOOTMODE",
        "type": "bidirectional",
        "description": "Boot mode select, default tied to VDD33."
      },
      {
        "number": "14",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose IO GPIO0, also the PWM output."
      },
      {
        "number": "15",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General-purpose IO GPIO2."
      },
      {
        "number": "16",
        "name": "VDD33",
        "type": "power_in",
        "description": "Power supply for IO."
      },
      {
        "number": "17",
        "name": "VSSIO0",
        "type": "power_in",
        "description": "Ground for IO."
      },
      {
        "number": "18",
        "name": "AVDD",
        "type": "power_in",
        "description": "Power supply for analog circuits except the headphone driver."
      },
      {
        "number": "19",
        "name": "AVDD_HP",
        "type": "power_in",
        "description": "Power supply for the headphone analog circuits."
      },
      {
        "number": "20",
        "name": "MIC_BIAS",
        "type": "output",
        "description": "Microphone bias output."
      },
      {
        "number": "21",
        "name": "MIC_IN",
        "type": "input",
        "description": "Microphone input."
      },
      {
        "number": "22",
        "name": "ADC_IN",
        "type": "input",
        "description": "ADC analog input (one channel)."
      },
      {
        "number": "23",
        "name": "RESETB",
        "type": "bidirectional",
        "description": "Chip reset, active low."
      },
      {
        "number": "24",
        "name": "PGND",
        "type": "power_in",
        "description": "Ground for analog circuits."
      },
      {
        "number": "25",
        "name": "HP_L",
        "type": "output",
        "description": "Left headphone output."
      },
      {
        "number": "26",
        "name": "HP_VCOM",
        "type": "output",
        "description": "Headphone voltage reference."
      },
      {
        "number": "27",
        "name": "HP_R",
        "type": "output",
        "description": "Right headphone output."
      },
      {
        "number": "28",
        "name": "Codec_Vmid",
        "type": "output",
        "description": "Codec voltage reference."
      },
      {
        "number": "29",
        "name": "DVDD18",
        "type": "power_out",
        "description": "1.8V regulator output for IO, normally 2.2V as stated in the table."
      },
      {
        "number": "30",
        "name": "USB_DM",
        "type": "bidirectional",
        "description": "USB D- data line."
      },
      {
        "number": "31",
        "name": "USB_DP",
        "type": "bidirectional",
        "description": "USB D+ data line."
      },
      {
        "number": "32",
        "name": "DVDD33",
        "type": "power_in",
        "description": "Power supply for the USB PHY."
      },
      {
        "number": "33",
        "name": "GND/VSS",
        "type": "power_in",
        "description": "Digital ground; likely the exposed pad, shown as the centre ground in the diagram."
      }
    ],
    "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 33 (GND/VSS) is listed beyond the 32-lead count and is shown as the centre ground in the pin dia"
        ],
        "pages_sent": 7,
        "cost_usd": 0.001,
        "at": "2026-11-12T19:27:29"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/15f8aa0f869c4b0b4914520f10a01eb3.pdf",
        "pages": 91,
        "sha256": "e1df8708ea3c5f2a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cjc6811a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-11-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cjc6811a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "eb85b3223254ba195bf6d751c8a6c76cb30d2a6242d5c3b847a612d895ac8972",
        "checked": "2026-11-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "QFN5*5-32",
      "source_page": 90,
      "D": {
        "nom_mm": 5.0,
        "range_mm": [
          4.9,
          5.1
        ]
      },
      "E1": {
        "nom_mm": 5.0,
        "range_mm": [
          4.9,
          5.1
        ]
      },
      "A": {
        "nom_mm": 0.8,
        "range_mm": [
          0.7,
          0.9
        ]
      },
      "source": "reviewer dims decision (part-reviewer (ray review), cjc6811a.dims.json)",
      "model_check": {
        "file": "cjc6811a.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}