CA-IF42088

{
  "slug": "ca-if42088",
  "version": "0.1.0",
  "type": "component",
  "description": "Chipanalog Buffers, Drivers, Receivers, Transceivers, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "ca-if42088",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ca-if42088.kicad_sym",
    "ca-if42088.kicad_mod",
    "ca-if42088.glb",
    "ca-if42088.step",
    "ca-if42088.lbr",
    "docs/hero.png",
    "docs/ca-if42088-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ca-if42088-hero.glb",
    "ca-if42088-hero.overlay.json",
    "ca-if42088-etched.glb"
  ],
  "component": {
    "mpn": "CA-IF42088",
    "manufacturer": "Chipanalog",
    "package": "QFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603012604839141376",
    "parts": {
      "symbol": "ca-if42088.kicad_sym",
      "footprint": "ca-if42088.kicad_mod",
      "model_3d": "ca-if42088-hero.glb",
      "model_3d_plain": "ca-if42088-etched.glb",
      "model_3d_step": "ca-if42088-etched.step",
      "model_3d_step_plain": "ca-if42088.step",
      "lbr": "ca-if42088.lbr"
    },
    "distributor_links": {
      "lcsc": "C39673499"
    },
    "distributor_check": {
      "checked_at": "2026-10-29T10:15:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DOUT",
        "type": "output",
        "description": "Open-drain digital output that needs an external pull-up to the logic supply, with VOL of 0.3 V max at 2 mA sink and leakage of 1 µA max when open."
      },
      {
        "number": "2",
        "name": "DIN",
        "type": "input",
        "description": "Digital data input from the MCU, with VIH minimum 1.4 V and VIL maximum 0.4 V."
      },
      {
        "number": "3",
        "name": "RST",
        "type": "input",
        "description": "Active-low bus reset control input: low enables the transmitter and high puts it in high impedance, and RST also controls the internal dynamic termination."
      },
      {
        "number": "4",
        "name": "CAPN",
        "type": "input",
        "description": "Active-inductor control port on the HN side; in bus-powered use the capacitance between CAPN and HNA sets the equivalent inductance, and in non-bus-powered use CAPN is shorted to HNA to bypass the inductor."
      },
      {
        "number": "5",
        "name": "HNA",
        "type": "input",
        "description": "Active-inductor control port on the HN side; in bus-powered use the capacitance between HNA and CAPN sets the equivalent inductance, and in non-bus-powered use HNA is shorted to CAPN to bypass the inductor."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "7",
        "name": "BIO",
        "type": "bidirectional",
        "description": "One of the differential transceiver data ports to the Home Bus, coupled through external capacitors, with absolute maximum AIO/BIO voltage of VCC + 0.3 V to GND."
      },
      {
        "number": "8",
        "name": "HN",
        "type": "power_in",
        "description": "Negative bus-power terminal and one of the differential data ports of the Home Bus, with absolute maximum HN to GND of ±6.0 V."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Internal reference ground that floats with respect to HN in bus-powered applications and connects to HN in non-bus-powered applications; keep it close to the device's ground connections."
      },
      {
        "number": "10",
        "name": "HP",
        "type": "power_in",
        "description": "Positive bus-power terminal and one of the differential data ports of the Home Bus, with absolute maximum HP to GND of +28 V and VHP-VHN of 9 V to 24 V for bus powering."
      },
      {
        "number": "11",
        "name": "AIO",
        "type": "bidirectional",
        "description": "One of the differential transceiver data ports to the Home Bus, coupled through external capacitors, with absolute maximum AIO/BIO voltage of VCC + 0.3 V to GND."
      },
      {
        "number": "12",
        "name": "TERM",
        "type": "output",
        "description": "Dynamic termination control port; a resistor between TERM and BIO sets the cable termination impedance, typically recommended between 50 Ω and 240 Ω."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "14",
        "name": "HPA",
        "type": "input",
        "description": "Active-inductor control port on the HP side; in bus-powered use the capacitance between CAPP and HPA sets the equivalent inductance, and in non-bus-powered use HPA is shorted to CAPP to bypass the inductor."
      },
      {
        "number": "15",
        "name": "CAPP",
        "type": "input",
        "description": "Active-inductor control port on the HP side; in bus-powered use the capacitance between CAPP and HPA sets the equivalent inductance, and in non-bus-powered use CAPP is shorted to HPA to bypass the inductor."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Internal reference ground that floats with respect to HN in bus-powered applications and connects to HN in non-bus-powered applications; keep it close to the device's ground connections."
      },
      {
        "number": "17",
        "name": "VCC",
        "type": "power_out",
        "description": "Output of the internal 5 V LDO, which supplies up to 90 mA to external loads and needs at least 1 µF to GND placed as close to the device as possible."
      },
      {
        "number": "18",
        "name": "VRAW",
        "type": "power_out",
        "description": "Active-inductor power output that supplies up to 300 mA; bypass with at least 100 µF to GND for loads below 70 mA or at least 200 µF to GND for loads above 70 mA."
      },
      {
        "number": "19",
        "name": "EN",
        "type": "input",
        "description": "LDO enable input: connect to VRAW to enable the internal LDO, or connect to GND to disable it."
      },
      {
        "number": "20",
        "name": "HPEN",
        "type": "input",
        "description": "Receiver high-pass filter enable input (overbar in the datasheet, so active low): connect to GND to enable the high-pass filter and to VCC to disable it, and do not leave it floating."
      },
      {
        "number": "21",
        "name": "TVL",
        "type": "input",
        "description": "Receiver leading-edge data threshold input, which must be set higher than TVT (VTVL > VTVT), with recommended value of 0.5 V minimum per the recommended operating conditions."
      },
      {
        "number": "22",
        "name": "TVT",
        "type": "input",
        "description": "Receiver trailing-edge data threshold input, which must be set lower than TVL (VTVL > VTVT)."
      },
      {
        "number": "23",
        "name": "SRA",
        "type": "input",
        "description": "Transmit output slew-rate adjust port; a resistor from SRA to GND sets the AIO and BIO edge slope, with RSRA specified between 33 kΩ and 470 kΩ."
      },
      {
        "number": "24",
        "name": "DTA",
        "type": "input",
        "description": "Dynamic-termination enable-time adjust port; a 10 kΩ to 500 kΩ resistor to GND sets the termination time, and leaving it open gives 34 µs typical."
      },
      {
        "number": "25",
        "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: The datasheet classifies TERM as an output (输出), but it functions as a resistor-connection node betw; The pin name is printed with an overbar (active-low); recorded as HPEN and the datasheet's GND/VCC e; The exposed pad has no numeric pin number in Table 7-1 (printed as '--'); listed as EP, connected to",
          "exposed pad 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 25,
        "cost_usd": 0.1261,
        "at": "2026-10-29T10:15:38"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603012604839141376",
        "pages": 25,
        "sha256": "122d2f62121b39bf",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ca-if42088.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f7d256794c4147daf24dcae0554fae18510315e565ad1e239b475be7fef80d8b",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ca-if42088-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e40536fc302a559a322bf0b308686ed6fca1dcbc5dd90aa74568b5bae61d0077",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}