CMT2219A-EQR

{
  "slug": "cmt2219a-eqr",
  "version": "0.1.0",
  "type": "component",
  "description": "HopeRF Micro electronics RF Transceiver ICs, QFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "rf and wireless",
    "cmt2219a-eqr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cmt2219a-eqr.kicad_sym",
    "cmt2219a-eqr.kicad_mod",
    "cmt2219a-eqr.glb",
    "cmt2219a-eqr.step",
    "cmt2219a-eqr.lbr",
    "docs/hero.png",
    "docs/cmt2219a-eqr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cmt2219a-eqr-hero.glb",
    "cmt2219a-eqr-hero.overlay.json",
    "cmt2219a-eqr-etched.glb"
  ],
  "component": {
    "mpn": "CMT2219A-EQR",
    "manufacturer": "HopeRF Micro electronics",
    "package": "QFN-16-EP(3x3)",
    "pin_count": 17,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588858418358992896",
    "parts": {
      "symbol": "cmt2219a-eqr.kicad_sym",
      "footprint": "cmt2219a-eqr.kicad_mod",
      "model_3d": "cmt2219a-eqr-hero.glb",
      "model_3d_plain": "cmt2219a-eqr-etched.glb",
      "model_3d_step": "cmt2219a-eqr-etched.step",
      "model_3d_step_plain": "cmt2219a-eqr.step",
      "lbr": "cmt2219a-eqr.lbr"
    },
    "distributor_links": {
      "lcsc": "C77215"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T23:43:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CSB",
        "type": "input",
        "description": "4-wire SPI chip select input, active low, internally pulled high."
      },
      {
        "number": "2",
        "name": "SDA",
        "type": "bidirectional",
        "description": "4-wire SPI data input and output."
      },
      {
        "number": "3",
        "name": "SCL",
        "type": "input",
        "description": "4-wire SPI clock input, internally pulled low."
      },
      {
        "number": "4",
        "name": "FCSB",
        "type": "input",
        "description": "4-wire SPI FIFO select input, active low; leave floating when programming the EEPROM, internally pulled high."
      },
      {
        "number": "5",
        "name": "GPO4",
        "type": "output",
        "description": "General purpose output; default DOUT, selectable as INT1, INT2 or DCLK."
      },
      {
        "number": "6",
        "name": "GPO3",
        "type": "output",
        "description": "General purpose output; default CLKO, selectable as INT1, INT2 or DOUT."
      },
      {
        "number": "7",
        "name": "XOUT",
        "type": "output",
        "description": "Crystal oscillator output."
      },
      {
        "number": "8",
        "name": "XIN",
        "type": "input",
        "description": "Crystal oscillator input or external 26 MHz reference clock input, which requires a coupling capacitor and 0.3 to 0.7 V peak-to-peak amplitude."
      },
      {
        "number": "9",
        "name": "GPO2",
        "type": "output",
        "description": "General purpose output; default INT1, selectable as INT2 or DCLK."
      },
      {
        "number": "10",
        "name": "GPO1",
        "type": "output",
        "description": "General purpose output; default nRSTO, selectable as INT1, INT2 or DOUT."
      },
      {
        "number": "11",
        "name": "VCOP",
        "type": "bidirectional",
        "description": "VCO tank connection, to be connected to an external inductor."
      },
      {
        "number": "12",
        "name": "VCON",
        "type": "bidirectional",
        "description": "VCO tank connection paired with VCOP; the pin-table row has no description text in the extracted datasheet."
      },
      {
        "number": "13",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "14",
        "name": "RFIN",
        "type": "input",
        "description": "RF signal input to the LNA."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input; operating supply is 1.8 V to 3.6 V (Table 2, page 6)."
      },
      {
        "number": "17",
        "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: Table 7 row for pin 12 (VCON) has no I/O type or description in the extracted text. Type 'bidirectio; The QFN 3x3 package has an exposed thermal pad (D2/E2 dimensions in Table 28), but the datasheet doe; Pins 13 and 15 are both listed as GND in Table 7; both are included as separate entries.",
          "exposed pad 17 added from the footprint",
          "1/17 pins cited to the wrong page (name found elsewhere): ['7:XOUT@p9']"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0736,
        "at": "2026-10-18T23:41:26"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588858418358992896",
        "pages": 40,
        "sha256": "76d2d498c34392f1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cmt2219a-eqr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.785
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3eb81ffac423a66cdcfead8efe56401da171edaf1f2257049aad7b2d3900f6c8",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cmt2219a-eqr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.785
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f66433898e58a87ac055cfbe050493c949921b2a0636d4e7bcbffa02bc340dbe",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}