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{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74lvc1g157dc",
  "title": "SN74LVC1G157DC",
  "brief": "lingxingic Signal Switches, Multiplexers, Decoders, SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "logic",
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    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "SN74LVC1G157DC",
    "manufacturer": "lingxingic",
    "package": "SOT-363",
    "pin_count": 6,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603394211073048576",
    "parts": {
      "symbol": "sn74lvc1g157dc.kicad_sym",
      "footprint": "sn74lvc1g157dc.kicad_mod",
      "model_3d": "sn74lvc1g157dc-hero.glb",
      "model_3d_plain": "sn74lvc1g157dc-etched.glb",
      "model_3d_step": "sn74lvc1g157dc-etched.step",
      "model_3d_step_plain": "sn74lvc1g157dc.step",
      "lbr": "sn74lvc1g157dc.lbr"
    },
    "distributor_links": {
      "lcsc": "C22469913"
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    "distributor_check": {
      "checked_at": "2026-10-17T14:36:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "I1",
        "type": "input",
        "description": "Data input from source 1; input voltage range is 0 V to 5.5 V under the recommended operating conditions."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for all voltages in the datasheet."
      },
      {
        "number": "3",
        "name": "I0",
        "type": "input",
        "description": "Data input from source 0; input voltage range is 0 V to 5.5 V under the recommended operating conditions."
      },
      {
        "number": "4",
        "name": "Y",
        "type": "output",
        "description": "Multiplexer output that presents the selected input (I0 or I1) in true, non-inverted form; output swings up to VCC in active mode."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 1.65 V to 5.5 V recommended operating range."
      },
      {
        "number": "6",
        "name": "S",
        "type": "input",
        "description": "Common data select input that chooses I0 (S low) or I1 (S high); input levels follow VIH/VIL for the VCC in use."
      }
    ],
    "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's ordering table lists SN74LVC1G157DB and SN74LVC1G157DC together with both SOT-23-6 a; The pin configuration figure on page 4 is a text extraction with no explicit pin-to-position drawing"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0544,
        "at": "2026-10-17T14:34:20"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603394211073048576",
        "pages": 13,
        "sha256": "f0d3579df56045d6",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "file": "sn74lvc1g157dc.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "045cc95e18ee7a13d1623c3ce6604fc833049bdb4f952f68c26e3c5767d122e4",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74lvc1g157dc-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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  "metadata": {
    "specs": {
      "Manufacturer": "lingxingic",
      "Package": "SOT-363",
      "Category": "Logic",
      "Pins": "6"
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    "characteristics": {
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      "source": "datasheet",
      "datasheet_sha256": "f0d3579df56045d696db90f5ac57ac9ce14a70b97f3f131d2318f58edf0a5b21",
      "rows": [
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          "name": "supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
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          "name": "input clamping current",
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          "unit": "mA",
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          "conditions": "VI < 0V",
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          "name": "input voltage",
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          "source": "datasheet"
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          "name": "output clamping current",
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          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "VO > VCC or VO < 0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "output voltage (active mode)",
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          "kind": "absolute_maximum",
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          "min": -0.5,
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          "conditions": "Active mode",
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          "name": "output voltage (power-down mode)",
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          "source": "datasheet"
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          "name": "supply current",
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        {
          "name": "total power dissipation",
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          "unit": "mW",
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          "max": 250,
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          "source": "datasheet"
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        {
          "name": "soldering temperature",
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          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10s",
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        },
        {
          "name": "supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
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          "typ": null,
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          "name": "input voltage",
          "symbol": "VI",
          "kind": "recommended_operating",
          "unit": "V",
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          "max": 5.5,
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          "source": "datasheet"
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        {
          "name": "output voltage (active mode)",
          "symbol": "VO",
          "kind": "recommended_operating",
          "unit": "V",
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          "typ": null,
          "max": null,
          "conditions": "Active mode",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "output voltage (power-down mode)",
          "symbol": "VO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 5.5,
          "conditions": "Power-down mode; VCC=0V",
          "source_page": 6,
          "source": "datasheet"
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          "name": "ambient temperature",
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        {
          "name": "HIGH-level input voltage",
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          "min": 1.7,
          "typ": null,
          "max": null,
          "conditions": "VCC=2.3V to 2.7V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level input voltage",
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          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "VCC=2.7V to 3.6V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "LOW-level input voltage",
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          "conditions": "VCC=2.3V to 2.7V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "LOW-level input voltage",
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          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "VCC=2.7V to 3.6V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 0.95,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-4mA; VCC=1.65V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
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          "min": 1.7,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-8mA; VCC=2.3V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.9,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-12mA; VCC=2.7V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-24mA; VCC=3.0V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
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          "min": 3.4,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-32mA; VCC=4.5V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VI=VIH or VIL; IO=100uA; VCC=1.65V to 5.5V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.7,
          "conditions": "VI=VIH or VIL; IO=4mA; VCC=1.65V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.45,
          "conditions": "VI=VIH or VIL; IO=8mA; VCC=2.3V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "VI=VIH or VIL; IO=12mA; VCC=2.7V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "VI=VIH or VIL; IO=24mA; VCC=3.0V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "input leakage current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "uA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VI=5.5V or GND; VCC=0V to 5.5V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "power-off leakage current",
          "symbol": "IOFF",
          "kind": "electrical",
          "unit": "uA",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "VI or VO=5.5V; VCC=0V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VI=5.5V or GND; IO=0A; VCC=1.65V to 5.5V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "additional supply current",
          "symbol": "ΔICC",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "per pin; VI=VCC-0.6V; IO=0A; VCC=2.3V to 5.5V; Tamb=-40℃ to +125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "propagation delay tPHL (I0, I1 to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 20.8,
          "conditions": "see Figure 5; VCC=1.65V to 1.95V; Tamb=-40℃ to +125℃",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "propagation delay tPHL (I0, I1 to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 17.8,
          "conditions": "see Figure 5; VCC=2.3V to 2.7V; Tamb=-40℃ to +125℃",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "propagation delay tPHL (I0, I1 to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 17,
          "conditions": "see Figure 5; VCC=2.7V; Tamb=-40℃ to +125℃",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "propagation delay tPHL (I0, I1 to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 16.3,
          "conditions": "see Figure 5; VCC=3.0V to 3.6V; Tamb=-40℃ to +125℃",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "propagation delay tPHL (I0, I1 to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 15.5,
          "conditions": "see Figure 5; VCC=4.5V to 5.5V; Tamb=-40℃ to +125℃",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "propagation delay tPHL (S to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
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