GN1668T

{
  "schema_version": 1,
  "type": "component",
  "slug": "gn1668t",
  "title": "GN1668T",
  "brief": "GN Semic LED Display Drivers, SSOP-24-150mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "gn1668t"
  ],
  "component": {
    "mpn": "GN1668T",
    "manufacturer": "GN Semic",
    "package": "SSOP-24-150mil",
    "pin_count": 24,
    "category": "LED-drv",
    "subcategory": "LED Display Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/05e0055570b177cefd5a86bef6f7578c.pdf",
    "parts": {
      "symbol": "gn1668t.kicad_sym",
      "footprint": "gn1668t.kicad_mod",
      "model_3d": "gn1668t-etched.glb",
      "model_3d_plain": "gn1668t.glb",
      "model_3d_step": "gn1668t-etched.step",
      "model_3d_step_plain": "gn1668t.step",
      "lbr": "gn1668t.lbr"
    },
    "distributor_links": {
      "lcsc": "C526231"
    },
    "pins": [
      {
        "number": "1",
        "name": "DIO",
        "type": "bidirectional",
        "description": "Serial data I/O for the 3-wire interface. N-channel open-drain output with internal pull-up resistor; external pull-up not required for typical operation."
      },
      {
        "number": "2",
        "name": "CLK",
        "type": "input",
        "description": "Serial clock input for the 3-wire interface. Data on DIO is latched on the clock edges; PWCLK min 400 ns, Fmax = 1 MHz at 50% duty."
      },
      {
        "number": "3",
        "name": "STB",
        "type": "input",
        "description": "Strobe / chip-select input. A high-to-low edge on STB begins a new instruction/data frame on DIO; taking STB high aborts the current transfer."
      },
      {
        "number": "4",
        "name": "K1",
        "type": "input",
        "description": "Keyboard-matrix return line 1. Internal pull-down resistor (typ. 10 kΩ); asserted high by the SEG/KS scan driver when a key on the K1 row is pressed."
      },
      {
        "number": "5",
        "name": "K2",
        "type": "input",
        "description": "Keyboard-matrix return line 2. Internal pull-down resistor (typ. 10 kΩ); asserted high by the SEG/KS scan driver when a key on the K2 row is pressed."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply input. Recommended operating range 3.0 V to 5.5 V (typ. 5 V); absolute max +7 V. Typical quiescent IDD = 130 µA (no load)."
      },
      {
        "number": "7",
        "name": "SEG1/KS1",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 1. P-channel open-drain sink to VDD; -50 mA max source per SEG. Drives display segments in display cycles and asserts the K1/K2 row during keyboard scan."
      },
      {
        "number": "8",
        "name": "SEG2/KS2",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 2. P-channel open-drain, -50 mA max."
      },
      {
        "number": "9",
        "name": "SEG3/KS3",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 3. P-channel open-drain, -50 mA max."
      },
      {
        "number": "10",
        "name": "SEG4/KS4",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 4. P-channel open-drain, -50 mA max."
      },
      {
        "number": "11",
        "name": "SEG5/KS5",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 5. P-channel open-drain, -50 mA max."
      },
      {
        "number": "12",
        "name": "SEG6/KS6",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 6. P-channel open-drain, -50 mA max."
      },
      {
        "number": "13",
        "name": "SEG7/KS7",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 7. P-channel open-drain, -50 mA max."
      },
      {
        "number": "14",
        "name": "SEG8/KS8",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 8. P-channel open-drain, -50 mA max."
      },
      {
        "number": "15",
        "name": "SEG9/KS9",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 9. P-channel open-drain, -50 mA max."
      },
      {
        "number": "16",
        "name": "SEG10/KS10",
        "type": "output",
        "description": "Multiplexed segment-drive / key-scan output 10. P-channel open-drain, -50 mA max."
      },
      {
        "number": "17",
        "name": "SEG12/GRID7",
        "type": "output",
        "description": "Multiplexed segment / grid (digit) output. Push-pull P/N-channel open-drain output - acts as SEG12 in 13-segment/4-grid mode, or as GRID7 in 10-segment/7-grid mode."
      },
      {
        "number": "18",
        "name": "SEG13/GRID6",
        "type": "output",
        "description": "Multiplexed segment / grid output. Push-pull P/N-channel open-drain output; SEG13 in 13-seg/4-grid mode, GRID6 in 11-seg/6-grid mode."
      },
      {
        "number": "19",
        "name": "SEG14/GRID5",
        "type": "output",
        "description": "Multiplexed segment / grid output. Push-pull P/N-channel open-drain output; SEG14 in 13-seg/4-grid mode, GRID5 in 12-seg/5-grid mode."
      },
      {
        "number": "20",
        "name": "GRID4",
        "type": "output",
        "description": "Grid (digit common) output 4. N-channel open-drain output; +150 mA max sink, VOL = 0.3 V at 100 mA typ. Drives one common-cathode digit."
      },
      {
        "number": "21",
        "name": "GRID3",
        "type": "output",
        "description": "Grid (digit common) output 3. N-channel open-drain output; +150 mA max sink."
      },
      {
        "number": "22",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / reference (0 V). Common return for supply and all outputs."
      },
      {
        "number": "23",
        "name": "GRID2",
        "type": "output",
        "description": "Grid (digit common) output 2. N-channel open-drain output; +150 mA max sink."
      },
      {
        "number": "24",
        "name": "GRID1",
        "type": "output",
        "description": "Grid (digit common) output 1. N-channel open-drain output; +150 mA max sink."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/05e0055570b177cefd5a86bef6f7578c.pdf",
        "pages": 16,
        "sha256": "23e60bbc70cfe4a2",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -3.5,
        -3.575
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SSOP-24_5.3x8.2mm_P0.65mm@sha256:120d739ab88ed463",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "gn1668t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          8.2,
          2.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "77dd0a1fc7e70e9eda1bfde9dde937dc6e391803cff9978790523c850c85a21d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gn1668t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          8.2,
          2.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "0d81c44d03bc3067acad93336a2e9d9ff984bb0e8e65d0ada34147deff726130",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "GN Semic",
      "Package": "SSOP-24-150mil",
      "Category": "LED-drv",
      "Pins": "24"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "gn1668t"
  ],
  "discovery_pitch": "GN1668T (GN Semic) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "gn1668t.kicad_sym",
    "gn1668t.kicad_mod",
    "gn1668t.glb",
    "gn1668t.step",
    "gn1668t-etched.step",
    "gn1668t.lbr",
    "docs/hero.png",
    "docs/gn1668t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "GN1668TT",
      "kind": "packaging"
    },
    {
      "mpn": "GN1668T",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T21:07:58.901Z"
}