RS2251XTQC16

{
  "schema_version": 1,
  "type": "component",
  "slug": "rs2251xtqc16",
  "title": "RS2251XTQC16",
  "brief": "Jiangsu RUNIC Tech Analog Switches / Multiplexers, QFN-16L(3x3). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "comm-uart",
    "rs2251xtqc16"
  ],
  "component": {
    "mpn": "RS2251XTQC16",
    "manufacturer": "Jiangsu RUNIC Tech",
    "package": "QFN-16L(3x3)",
    "pin_count": 17,
    "category": "Comm/UART",
    "subcategory": "Analog Switches / Multiplexers",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303140930_Jiangsu-RUNIC-Tech-RS2251XTQC16_C5372469.pdf",
    "parts": {
      "symbol": "rs2251xtqc16.kicad_sym",
      "footprint": "rs2251xtqc16.kicad_mod",
      "model_3d": "rs2251xtqc16-etched.glb",
      "model_3d_plain": "rs2251xtqc16.glb",
      "model_3d_step": "rs2251xtqc16-etched.step",
      "model_3d_step_plain": "rs2251xtqc16.step",
      "lbr": "rs2251xtqc16.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "X",
        "type": "passive",
        "description": "Analog Switch 'X' common output/input. Bidirectional analog signal pin connected to one of X0-X7 based on A/B/C address inputs when ENABLE is low. Signal range GND to VCC."
      },
      {
        "number": "2",
        "name": "X7",
        "type": "passive",
        "description": "Analog switch channel input/output 7. Connected to X when C,B,A = 1,1,1 and ENABLE is low. Bidirectional analog signal, range GND to VCC."
      },
      {
        "number": "3",
        "name": "X5",
        "type": "passive",
        "description": "Analog switch channel input/output 5. Connected to X when C,B,A = 1,0,1 and ENABLE is low. Bidirectional analog signal, range GND to VCC."
      },
      {
        "number": "4",
        "name": "ENABLE",
        "type": "input",
        "description": "Active-low digital enable input. When low, one of X0-X7 is connected to X per address inputs; when high, all channels are off. VIH ≥ 1.7V, VIL ≤ 0.5V. Normally connected to GND if permanently enabled."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating or tie as convenient."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground. Connect to digital ground / system 0V reference."
      },
      {
        "number": "7",
        "name": "C",
        "type": "input",
        "description": "Digital Address 'C' input (MSB of channel select). Binary address bit selecting X0-X7. VIH ≥ 1.7V, VIL ≤ 0.5V. Must be held at VCC or GND when unused."
      },
      {
        "number": "8",
        "name": "B",
        "type": "input",
        "description": "Digital Address 'B' input (middle bit of channel select). Binary address bit selecting X0-X7. VIH ≥ 1.7V, VIL ≤ 0.5V."
      },
      {
        "number": "9",
        "name": "A",
        "type": "input",
        "description": "Digital Address 'A' input (LSB of channel select). Binary address bit selecting X0-X7. VIH ≥ 1.7V, VIL ≤ 0.5V."
      },
      {
        "number": "10",
        "name": "X3",
        "type": "passive",
        "description": "Analog switch channel input/output 3. Connected to X when C,B,A = 0,1,1 and ENABLE is low. Bidirectional analog signal, range GND to VCC."
      },
      {
        "number": "11",
        "name": "X0",
        "type": "passive",
        "description": "Analog switch channel input/output 0. Connected to X when C,B,A = 0,0,0 and ENABLE is low. Bidirectional analog signal, range GND to VCC."
      },
      {
        "number": "12",
        "name": "X1",
        "type": "passive",
        "description": "Analog switch channel input/output 1. Connected to X when C,B,A = 0,0,1 and ENABLE is low. Bidirectional analog signal, range GND to VCC."
      },
      {
        "number": "13",
        "name": "X2",
        "type": "passive",
        "description": "Analog switch channel input/output 2. Connected to X when C,B,A = 0,1,0 and ENABLE is low. Bidirectional analog signal, range GND to VCC."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive analog and digital supply voltage input. 2.5V to 5.5V operating range. Decouple locally with a bypass capacitor to GND."
      },
      {
        "number": "15",
        "name": "X4",
        "type": "passive",
        "description": "Analog switch channel input/output 4. Connected to X when C,B,A = 1,0,0 and ENABLE is low. Bidirectional analog signal, range GND to VCC."
      },
      {
        "number": "16",
        "name": "X6",
        "type": "passive",
        "description": "Analog switch channel input/output 6. Connected to X when C,B,A = 1,1,0 and ENABLE is low. Bidirectional analog signal, range GND to VCC."
      },
      {
        "number": "EP",
        "name": "EP",
        "type": "power_in",
        "description": "Exposed thermal pad on package underside. Must be connected to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303140930_Jiangsu-RUNIC-Tech-RS2251XTQC16_C5372469.pdf",
        "pages": 14,
        "sha256": "64ffabd09559d39d",
        "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": "rs2251xtqc16.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4bafaf1bb48873ff43b364918bf5e1f4278a211ad76791ed7928096d98c1768a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rs2251xtqc16-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b2ddd49145ca870b306e26f05884f9cbd1e5daa1682bf71bd7f64b28ea923ce9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Jiangsu RUNIC Tech",
      "Package": "QFN-16L(3x3)",
      "Category": "Comm/UART",
      "Pins": "17"
    }
  },
  "variants": [
    {
      "mpn": "RS2251XTQC16",
      "kind": "packaging"
    },
    {
      "mpn": "RS2251XTQC16XS16",
      "kind": "packaging"
    },
    {
      "mpn": "RS2251XTQC16XSS16",
      "kind": "packaging"
    },
    {
      "mpn": "RS2251XTQC16XTSS16",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "rs2251xtqc16"
  ],
  "discovery_pitch": "RS2251XTQC16 (Jiangsu RUNIC Tech) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rs2251xtqc16.kicad_sym",
    "rs2251xtqc16.kicad_mod",
    "rs2251xtqc16.glb",
    "rs2251xtqc16.step",
    "rs2251xtqc16.lbr",
    "docs/hero.png",
    "docs/rs2251xtqc16-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T04:58:29.665Z"
}