ESP8285H16

{
  "slug": "esp8285h16",
  "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",
    "esp8285h16",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp8285h16.kicad_sym",
    "esp8285h16.kicad_mod",
    "esp8285h16.glb",
    "esp8285h16.step",
    "esp8285h16.lbr",
    "docs/hero.png",
    "docs/esp8285h16-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "esp8285h16-hero.glb",
    "esp8285h16-hero.overlay.json",
    "esp8285h16-etched.glb"
  ],
  "component": {
    "mpn": "ESP8285H16",
    "manufacturer": "Espressif Systems",
    "package": "QFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://www.espressif.com/sites/default/files/documentation/0a-esp8285_datasheet_en.pdf",
    "parts": {
      "symbol": "esp8285h16.kicad_sym",
      "footprint": "esp8285h16.kicad_mod",
      "model_3d": "esp8285h16-hero.glb",
      "model_3d_plain": "esp8285h16-etched.glb",
      "model_3d_step": "esp8285h16-etched.step",
      "model_3d_step_plain": "esp8285h16.step",
      "lbr": "esp8285h16.lbr"
    },
    "distributor_links": {
      "lcsc": "C967019",
      "mouser": "356-ESP8285H16"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T23:34:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 952 calls left today"
      },
      "mouser": {
        "pn": "356-ESP8285H16",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power 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 suggested to match the antenna."
      },
      {
        "number": "3",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Amplifier power supply, 2.5 V to 3.6 V."
      },
      {
        "number": "4",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Amplifier power supply, 2.5 V to 3.6 V."
      },
      {
        "number": "5",
        "name": "VDD_RTC",
        "type": "unconnected",
        "description": "Listed as NC (1.1 V) in Table 2-1."
      },
      {
        "number": "6",
        "name": "TOUT",
        "type": "input",
        "description": "ADC pin that measures either the VDD3P3 supply or the external TOUT input voltage (0 to 1.0 V), but not both at the same time."
      },
      {
        "number": "7",
        "name": "CHIP_EN",
        "type": "input",
        "description": "Chip enable: high turns the chip on so it works properly, low turns it off with small current consumed."
      },
      {
        "number": "8",
        "name": "XPD_DCDC",
        "type": "bidirectional",
        "description": "Deep-sleep wakeup pin that needs to be connected to EXT_RSTB; also GPIO16."
      },
      {
        "number": "9",
        "name": "MTMS",
        "type": "bidirectional",
        "description": "GPIO14, also used for HSPI_CLK, I2C_SCL, PWM2 and IR TX."
      },
      {
        "number": "10",
        "name": "MTDI",
        "type": "bidirectional",
        "description": "GPIO12, also used for HSPI_MISO and PWM0."
      },
      {
        "number": "11",
        "name": "VDDPST",
        "type": "power_in",
        "description": "Digital/IO power supply, 2.7 V to 3.6 V."
      },
      {
        "number": "12",
        "name": "MTCK",
        "type": "bidirectional",
        "description": "GPIO13, also used for HSPI_MOSI and UART0_CTS."
      },
      {
        "number": "13",
        "name": "MTDO",
        "type": "bidirectional",
        "description": "GPIO15, also used for boot mode selection, HSPI_CS and UART0_RTS."
      },
      {
        "number": "14",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "UART TX during flash programming and used for boot mode selection; also GPIO2 and I2C_SDA."
      },
      {
        "number": "15",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "GPIO0, used for boot mode selection, also SPI_CS2."
      },
      {
        "number": "16",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "GPIO4, also used for PWM3."
      },
      {
        "number": "17",
        "name": "VDDPST",
        "type": "power_in",
        "description": "Digital/IO power supply, 2.7 V to 3.6 V."
      },
      {
        "number": "18",
        "name": "SDIO_DATA_2",
        "type": "bidirectional",
        "description": "Connect to SD_D2 through a 200 Ω series resistor; also GPIO9 and SPIHD."
      },
      {
        "number": "19",
        "name": "SDIO_DATA_3",
        "type": "bidirectional",
        "description": "Connect to SD_D3 through a 200 Ω series resistor; also GPIO10 and SPIWP."
      },
      {
        "number": "20",
        "name": "SDIO_CMD",
        "type": "bidirectional",
        "description": "Connect to SD_CMD through a 200 Ω series resistor; used for the embedded flash and not recommended for other uses."
      },
      {
        "number": "21",
        "name": "SDIO_CLK",
        "type": "bidirectional",
        "description": "Connect to SD_CLK through a 200 Ω series resistor; used for the embedded flash and not recommended for other uses."
      },
      {
        "number": "22",
        "name": "SDIO_DATA_0",
        "type": "bidirectional",
        "description": "Connect to SD_D0 through a 200 Ω series resistor; used for the embedded flash and not recommended for other uses."
      },
      {
        "number": "23",
        "name": "SDIO_DATA_1",
        "type": "bidirectional",
        "description": "Connect to SD_D1 through a 200 Ω series resistor; used for the embedded flash and not recommended for other uses."
      },
      {
        "number": "24",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "GPIO5, also used for IR Rx."
      },
      {
        "number": "25",
        "name": "U0RXD",
        "type": "bidirectional",
        "description": "UART Rx during flash programming; also GPIO3."
      },
      {
        "number": "26",
        "name": "U0TXD",
        "type": "bidirectional",
        "description": "UART TX during flash programming; should not be pulled externally to a low logic level during power-up; also GPIO1 and SPI_CS1."
      },
      {
        "number": "27",
        "name": "XTAL_OUT",
        "type": "bidirectional",
        "description": "Crystal oscillator output, which can also provide a BT clock input."
      },
      {
        "number": "28",
        "name": "XTAL_IN",
        "type": "bidirectional",
        "description": "Crystal oscillator input."
      },
      {
        "number": "29",
        "name": "VDDD",
        "type": "power_in",
        "description": "Analog power supply, 2.5 V to 3.6 V."
      },
      {
        "number": "30",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power supply, 2.5 V to 3.6 V."
      },
      {
        "number": "31",
        "name": "RES12K",
        "type": "input",
        "description": "Connect in series with a 12 kΩ resistor to ground."
      },
      {
        "number": "32",
        "name": "EXT_RSTB",
        "type": "input",
        "description": "External reset signal, active at low voltage level."
      },
      {
        "number": "33",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (exposed pad), shown as pin 33 in the pin layout figure."
      }
    ],
    "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: The datasheet's Figure 2-1 and Table 2-1 describe a 32-pin QFN package for the ESP8285 family, but t; Pin 33 (GND, exposed pad) appears only as a label in Figure 2-1 and is not listed in Table 2-1, so i; Table 2-1 types pin 5 (VDD_RTC) as P, but its function is printed as NC (1.1 V); it is recorded here"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0615,
        "at": "2026-10-27T23:34:14"
      },
      "datasheet": {
        "url": "https://www.espressif.com/sites/default/files/documentation/0a-esp8285_datasheet_en.pdf",
        "pages": 30,
        "sha256": "dce7d19cb67c8ef9",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          5.0,
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ba0561bc79f5a9da290aa7993318c1df3e9b747fb31b8816e75afc092c57352b",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp8285h16-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
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        "sha256": "480e260e2876cae32375fe5730f24d8f702bf9edcdc024e1cdb6c28b0b598b9b",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}