ESP8285N08

{
  "slug": "esp8285n08",
  "version": "0.1.0",
  "type": "component",
  "description": "Espressif Systems RF Transceiver ICs, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "rf and wireless",
    "esp8285n08",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp8285n08.kicad_sym",
    "esp8285n08.kicad_mod",
    "esp8285n08.glb",
    "esp8285n08.step",
    "esp8285n08.lbr",
    "docs/hero.png",
    "docs/esp8285n08-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "esp8285n08-hero.glb",
    "esp8285n08-hero.overlay.json",
    "esp8285n08-etched.glb"
  ],
  "component": {
    "mpn": "ESP8285N08",
    "manufacturer": "Espressif Systems",
    "package": "QFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918640461037568",
    "parts": {
      "symbol": "esp8285n08.kicad_sym",
      "footprint": "esp8285n08.kicad_mod",
      "model_3d": "esp8285n08-hero.glb",
      "model_3d_plain": "esp8285n08-etched.glb",
      "model_3d_step": "esp8285n08-etched.step",
      "model_3d_step_plain": "esp8285n08.step",
      "lbr": "esp8285n08.lbr"
    },
    "distributor_links": {
      "lcsc": "C967018"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T13:02:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply, 2.5 V to 3.6 V."
      },
      {
        "number": "2",
        "name": "LNA",
        "type": "bidirectional",
        "description": "RF antenna interface with chip output impedance of 39+j6 Ω; a π-type matching network is recommended between the chip and the antenna."
      },
      {
        "number": "3",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "PA (power amplifier) supply, 2.5 V to 3.6 V."
      },
      {
        "number": "4",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "PA (power amplifier) supply, 2.5 V to 3.6 V."
      },
      {
        "number": "5",
        "name": "VDD_RTC",
        "type": "unconnected",
        "description": "Labelled NC (1.1 V) in the pin table although its type is listed as power."
      },
      {
        "number": "6",
        "name": "TOUT",
        "type": "input",
        "description": "Internal ADC input that can measure either VDD3P3 (pins 3 and 4) or the TOUT input voltage, not both at once; an external input is limited to 0 to 1.0 V and the hardware design note says the pin must be left floating."
      },
      {
        "number": "7",
        "name": "CHIP_EN",
        "type": "input",
        "description": "Chip enable: high level enables normal operation, low level shuts the chip down with very low current."
      },
      {
        "number": "8",
        "name": "XPD_DCDC",
        "type": "bidirectional",
        "description": "Deep-sleep wake-up pin, also GPIO16; per the GPIO section it supports only an internal pull-down."
      },
      {
        "number": "9",
        "name": "MTMS",
        "type": "bidirectional",
        "description": "GPIO14, also HSPI_CLK."
      },
      {
        "number": "10",
        "name": "MTDI",
        "type": "bidirectional",
        "description": "GPIO12, also HSPI_MISO."
      },
      {
        "number": "11",
        "name": "VDDPST",
        "type": "power_in",
        "description": "Digital/IO supply, 2.7 V to 3.6 V."
      },
      {
        "number": "12",
        "name": "MTCK",
        "type": "bidirectional",
        "description": "GPIO13, also HSPI_MOSI and UART0_CTS."
      },
      {
        "number": "13",
        "name": "MTDO",
        "type": "bidirectional",
        "description": "GPIO15, also HSPI_CS and UART0_RTS; used with GPIO2 and GPIO0 to select the boot mode and SDIO mode."
      },
      {
        "number": "14",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "GPIO2, usable as UART1_TX when burning flash; used with GPIO0 and MTDO to select the boot mode and SDIO mode."
      },
      {
        "number": "15",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "GPIO0, also SPI_CS2; used with GPIO2 and MTDO to select the boot mode and SDIO mode."
      },
      {
        "number": "16",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "GPIO4."
      },
      {
        "number": "17",
        "name": "VDDPST",
        "type": "power_in",
        "description": "Digital/IO supply, 2.7 V to 3.6 V."
      },
      {
        "number": "18",
        "name": "SDIO_DATA_2",
        "type": "bidirectional",
        "description": "Connects to SD_D2 through a 200 Ω series resistor; also PIHD (printed; SPIHD in the SPI table), HSPIHD and GPIO9."
      },
      {
        "number": "19",
        "name": "SDIO_DATA_3",
        "type": "bidirectional",
        "description": "Connects to SD_D3 through a 200 Ω series resistor; also SPIWP, HSPIWP and GPIO10."
      },
      {
        "number": "20",
        "name": "SDIO_CMD",
        "type": "bidirectional",
        "description": "Connects to SD_CMD through a 200 Ω series resistor; also SPI_CS0 and GPIO11; used for the embedded flash and not recommended for other functions."
      },
      {
        "number": "21",
        "name": "SDIO_CLK",
        "type": "bidirectional",
        "description": "Connects to SD_CLK through a 200 Ω series resistor; also SPI_CLK and GPIO6; used for the embedded flash and not recommended for other functions."
      },
      {
        "number": "22",
        "name": "SDIO_DATA_0",
        "type": "bidirectional",
        "description": "Connects to SD_D0 through a 200 Ω series resistor; also SPI_MISO and GPIO7; used for the embedded flash and not recommended for other functions."
      },
      {
        "number": "23",
        "name": "SDIO_DATA_1",
        "type": "bidirectional",
        "description": "Connects to SD_D1 through a 200 Ω series resistor; also SPI_MOSI and GPIO8; used for the embedded flash and not recommended for other functions."
      },
      {
        "number": "24",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "GPIO5, also IR RX."
      },
      {
        "number": "25",
        "name": "U0RXD",
        "type": "bidirectional",
        "description": "UART0 RX usable when burning flash, also GPIO3."
      },
      {
        "number": "26",
        "name": "U0TXD",
        "type": "bidirectional",
        "description": "UART0 TX usable when burning flash, also GPIO1 and SPI_CS1; must not be pulled low externally during power-up."
      },
      {
        "number": "27",
        "name": "XTAL_OUT",
        "type": "bidirectional",
        "description": "Crystal oscillator output; can also provide the clock input for BT."
      },
      {
        "number": "28",
        "name": "XTAL_IN",
        "type": "bidirectional",
        "description": "Crystal oscillator input."
      },
      {
        "number": "29",
        "name": "VDDD",
        "type": "power_in",
        "description": "Listed as analog supply, 2.5 V to 3.6 V."
      },
      {
        "number": "30",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply, 2.5 V to 3.6 V."
      },
      {
        "number": "31",
        "name": "RES12K",
        "type": "input",
        "description": "Connected to ground through a series 12 kΩ resistor."
      },
      {
        "number": "32",
        "name": "EXT_RSTB",
        "type": "input",
        "description": "External reset signal, active low."
      },
      {
        "number": "33",
        "name": "GND",
        "type": "power_in",
        "description": "Ground exposed pad, labelled GND in the pin layout figure; the datasheet gives no further electrical limit for it."
      }
    ],
    "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: Package variant: the datasheet covers only one package (QFN, 5 mm x 5 mm, 32 leads plus exposed pad ; Pin 33 (exposed ground pad) appears only as 'GND' in the layout figure; the pin table does not list ; Pin 5 VDD_RTC: the table lists type P but the function column says NC (1.1 V). I mapped it to unconn"
        ],
        "pages_sent": 31,
        "cost_usd": 0.1233,
        "at": "2026-10-18T12:59:52"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918640461037568",
        "pages": 31,
        "sha256": "2574b569e1f10a30",
        "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": "esp8285n08.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp8285n08-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": "b441e96940a13aa5e4da46d1bb0482e69567f937c3884f03a17d7c168294aed7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}