NCN8025MTTBG

{
  "slug": "ncn8025mttbg",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Interface - Specialized, QFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "ncn8025mttbg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ncn8025mttbg.kicad_sym",
    "ncn8025mttbg.kicad_mod",
    "ncn8025mttbg.glb",
    "ncn8025mttbg.step",
    "ncn8025mttbg.lbr",
    "docs/hero.png",
    "docs/ncn8025mttbg-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ncn8025mttbg-hero.glb",
    "ncn8025mttbg-hero.overlay.json",
    "ncn8025mttbg-etched.glb"
  ],
  "component": {
    "mpn": "NCN8025MTTBG",
    "manufacturer": "onsemi",
    "package": "QFN-16-EP(3x3)",
    "pin_count": 17,
    "category": "Interface ICs",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/ncn8025mttb-d.pdf",
    "parts": {
      "symbol": "ncn8025mttbg.kicad_sym",
      "footprint": "ncn8025mttbg.kicad_mod",
      "model_3d": "ncn8025mttbg-hero.glb",
      "model_3d_plain": "ncn8025mttbg-etched.glb",
      "model_3d_step": "ncn8025mttbg-etched.step",
      "model_3d_step_plain": "ncn8025mttbg.step",
      "lbr": "ncn8025mttbg.lbr"
    },
    "distributor_links": {
      "lcsc": "C603431",
      "digikey": "NCN8025MTTBGOSTR-ND",
      "mouser": "863-NCN8025MTTBG"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:33:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "NCN8025MTTBGOSTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-NCN8025MTTBG",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VSEL0",
        "type": "input",
        "description": "Selects card VCC mode: VSEL0 Low gives 5 V (VSEL1 High) or 3 V (VSEL1 Low); VSEL0 High gives 1.8 V (VSEL1 High) or 3 V (VSEL1 Low)."
      },
      {
        "number": "2",
        "name": "VDDP",
        "type": "power_in",
        "description": "Regulator power supply (LDO input), 2.7 V to 5.5 V depending on CVCC mode, with 10 µF + 100 nF decoupling close to the pin."
      },
      {
        "number": "3",
        "name": "PRES",
        "type": "input",
        "description": "Card presence input, active (card present) when Low, with a built-in debounce timer of about 8 ms, for Normally Open smart card connectors."
      },
      {
        "number": "4",
        "name": "CI/O",
        "type": "bidirectional",
        "description": "Card serial I/O (C7) connection with a bidirectional level translator to the microcontroller and a typical 11 kΩ pull-up to CVCC."
      },
      {
        "number": "5",
        "name": "CCLK",
        "type": "output",
        "description": "Clock output to the card connector (C3), derived from CLKIN through the clock dividers and level shifter."
      },
      {
        "number": "6",
        "name": "CRST",
        "type": "output",
        "description": "Reset output to the card (C2), level-shifted from RSTIN according to the programmed CVCC value."
      },
      {
        "number": "7",
        "name": "CVCC",
        "type": "power_out",
        "description": "Card power supply output (C1) from the internal LDO programmable to 1.8 V, 3 V or 5 V, sourcing up to 70 mA and requiring 80 nF to 1.2 µF low-ESR (<100 mΩ) ceramic capacitance."
      },
      {
        "number": "8",
        "name": "CMDVCC",
        "type": "input",
        "description": "Active-Low command VCC input; the activation sequence starts when CMDVCC toggles High to Low with a card present."
      },
      {
        "number": "9",
        "name": "RSTIN",
        "type": "input",
        "description": "Reset input from the host referred to VDD, level-shifted to the card reset pin according to the programmed CVCC."
      },
      {
        "number": "10",
        "name": "VDD",
        "type": "power_in",
        "description": "Controller-side supply, 2.7 V to 5.5 V, with a 0.1 µF decoupling capacitor; card pins are disabled when VDD falls below 2.30 V typical."
      },
      {
        "number": "11",
        "name": "INT",
        "type": "output",
        "description": "Active-Low interrupt output that signals card presence and faults such as CVCC overload."
      },
      {
        "number": "12",
        "name": "CLKIN",
        "type": "input",
        "description": "External clock input, up to 27 MHz."
      },
      {
        "number": "13",
        "name": "I/Ouc",
        "type": "bidirectional",
        "description": "Microcontroller-side serial I/O with a bidirectional level translator to the card and a built-in constant 11 kΩ typical pull-up."
      },
      {
        "number": "14",
        "name": "CLKDIV1",
        "type": "input",
        "description": "Clock division ratio programming input, used together with CLKDIV2 (ratios 1, 1/2, 1/4, 1/8)."
      },
      {
        "number": "15",
        "name": "CLKDIV2",
        "type": "input",
        "description": "Clock division ratio programming input, used together with CLKDIV1 (ratios 1, 1/2, 1/4, 1/8)."
      },
      {
        "number": "16",
        "name": "VSEL1",
        "type": "input",
        "description": "Card VCC voltage select input: with VSEL0 Low, High gives 5 V and Low gives 3 V; with VSEL0 High, High gives 1.8 V and Low gives 3 V."
      },
      {
        "number": "17",
        "name": "GND",
        "type": "power_in",
        "description": "Regulator power supply ground, connected to the exposed pad, which must be connected to the PCB."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table lists the exposed pad as pin 17 (GND) for QFN-16. The datasheet gives no separate card; The ordering table lists NCN8025MTTBG as QFN16 (case 488AK, 3x3, 0.5P). The pin table is combined fo"
        ],
        "pages_sent": 15,
        "cost_usd": 0.1877,
        "at": "2026-10-27T01:33:12"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/ncn8025mttb-d.pdf",
        "pages": 15,
        "sha256": "c26d5c0564f47926",
        "source_tier": "mfr"
      },
      "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": "ncn8025mttbg.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": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ncn8025mttbg-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": "960c152f5626980fdddd141168ef9ad6ded4b0e8f06df090fb2032ebcb5f12de",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}