SN74AVC1T45DCKR

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  "slug": "sn74avc1t45dckr",
  "title": "SN74AVC1T45DCKR",
  "brief": "Texas Instruments 74 Series, SC-70-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "SN74AVC1T45DCKR",
    "manufacturer": "Texas Instruments",
    "package": "SC-70-6",
    "pin_count": 6,
    "category": "Logic ICs",
    "subcategory": "74 Series",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74avc1t45.pdf",
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      "lbr": "sn74avc1t45dckr.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VCCA",
        "type": "power_in",
        "description": "A-port supply voltage. Sets the logic level for the A side. Operating range 1.2 V ≤ VCCA ≤ 3.6 V. Bypass locally with a ceramic capacitor."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference for both supply rails."
      },
      {
        "number": "3",
        "name": "A",
        "type": "bidirectional",
        "description": "A-side data I/O, referenced to VCCA. Acts as input when DIR = HIGH (A→B) and as output when DIR = LOW (B→A). Typical drive ±12 mA at 3.3 V; I/Os are 4.6 V tolerant."
      },
      {
        "number": "4",
        "name": "B",
        "type": "bidirectional",
        "description": "B-side data I/O, referenced to VCCB. Acts as output when DIR = HIGH (A→B) and as input when DIR = LOW (B→A). Typical drive ±12 mA at 3.3 V; I/Os are 4.6 V tolerant."
      },
      {
        "number": "5",
        "name": "DIR",
        "type": "input",
        "description": "Direction control signal, referenced to VCCA. DIR = HIGH transmits A→B; DIR = LOW transmits B→A. Powered by VCCA."
      },
      {
        "number": "6",
        "name": "VCCB",
        "type": "power_in",
        "description": "B-port supply voltage. Sets the logic level for the B side. Operating range 1.2 V ≤ VCCB ≤ 3.6 V. If either VCCA or VCCB is at GND, both ports enter high-impedance (VCC isolation)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74avc1t45.pdf",
        "pages": 42,
        "sha256": "de9ae63b763d0829",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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    "logic": {
      "family_id": "74AVC1T45",
      "logic_family": "74AVC",
      "function_code": "1T45",
      "function_class": null,
      "function_name": null,
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "045cc95e18ee7a13d1623c3ce6604fc833049bdb4f952f68c26e3c5767d122e4",
        "checked": "2026-10-07",
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        "sha256": "35f619a6642ab72cb15f9909b9656b81cf71e1305b15f3fb1325aa64e89706ad",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SC-70-6",
      "Category": "Logic ICs",
      "Pins": "6"
    }
  },
  "variants": [
    {
      "mpn": "SN74AVC1T45DCKR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AVC1T45DCKRDCKT",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AVC1T45DCKRDBVR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AVC1T45DCKRDBVT",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AVC1T45DCKRDRLR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AVC1T45DCKRYZPR",
      "kind": "packaging"
    }
  ],
  "sections": [
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  "discovery_pitch": "SN74AVC1T45DCKR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
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  "updated_at": "2026-09-25T06:52:42.934Z"
}