SN74LVC2G157DCU3

{
  "slug": "sn74lvc2g157dcu3",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Signal Switches, Multiplexers, Decoders, VSSOP-8-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "logic",
    "sn74lvc2g157dcu3",
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  "component": {
    "mpn": "SN74LVC2G157DCU3",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8-0.5mm",
    "pin_count": 8,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74lvc2g157",
    "parts": {
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      "lbr": "sn74lvc2g157dcu3.lbr"
    },
    "distributor_links": {
      "lcsc": "C1850269",
      "digikey": "296-SN74LVC2G157DCU3TR-ND",
      "mouser": "595-SN74LVC2G157DCU3"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T00:44:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-SN74LVC2G157DCU3TR-ND",
        "status": "found",
        "lifecycle": "Active"
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      "mouser": {
        "pn": "595-SN74LVC2G157DCU3",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A",
        "type": "input",
        "description": "Data input A; the datasheet gives the input voltage range as 0 V to 5.5 V."
      },
      {
        "number": "2",
        "name": "B",
        "type": "input",
        "description": "Data input B; the datasheet gives the input voltage range as 0 V to 5.5 V."
      },
      {
        "number": "3",
        "name": "Y",
        "type": "output",
        "description": "Inverted output (complement of Y, shown as Y-bar in the datasheet, which the text extraction drops); when the strobe G is high this output is high. Output voltage is limited to 0 V to VCC."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "5",
        "name": "Y",
        "type": "output",
        "description": "True data output; when the strobe G is high this output is low. Output voltage is limited to 0 V to VCC."
      },
      {
        "number": "6",
        "name": "A/B",
        "type": "input",
        "description": "Selector input that chooses between data input A and data input B when the strobe G is low; input voltage range is 0 V to 5.5 V."
      },
      {
        "number": "7",
        "name": "G",
        "type": "input",
        "description": "Common active-high strobe input; when high it forces Y low and the inverted output high, and when low the selected input is passed to the outputs. Input voltage range is 0 V to 5.5 V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply; operating range is 1.65 V to 5.5 V."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Both outputs are printed as 'Y' in the pin table. The overbar on pin 3 is lost in text extraction. P; Only page 3 (Pin Configuration and Functions) was provided for the pinout. The DCU top-view drawing "
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        "cost_usd": 0.0607,
        "at": "2026-10-08T00:44:39"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74lvc2g157",
        "pages": 28,
        "sha256": "d8feceb35335bfbc",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
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        "refuses_to_fabricate": true
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}