CD4042BDR

{
  "slug": "cd4042bdr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Latches, SOP-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "cd4042bdr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "README.md",
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    "cd4042bdr.kicad_mod",
    "cd4042bdr.glb",
    "cd4042bdr.step",
    "cd4042bdr.lbr",
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    "docs/cd4042bdr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd4042bdr-hero.glb",
    "cd4042bdr-hero.overlay.json",
    "cd4042bdr-etched.glb"
  ],
  "component": {
    "mpn": "CD4042BDR",
    "manufacturer": "Texas Instruments",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Latches",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd4042b.pdf",
    "parts": {
      "symbol": "cd4042bdr.kicad_sym",
      "footprint": "cd4042bdr.kicad_mod",
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      "model_3d_plain": "cd4042bdr-etched.glb",
      "model_3d_step": "cd4042bdr-etched.step",
      "model_3d_step_plain": "cd4042bdr.step",
      "lbr": "cd4042bdr.lbr"
    },
    "distributor_links": {
      "lcsc": "C406861",
      "digikey": "296-31495-2-ND",
      "mouser": "595-CD4042BDR"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T21:25:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-31495-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-CD4042BDR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Q3B",
        "type": "output",
        "description": "Complementary (inverted) latch output for latch 3; electrically identical to Q3 but inverted, tracks D3 on the active CLOCK edge selected by POLARITY."
      },
      {
        "number": "2",
        "name": "D3",
        "type": "input",
        "description": "Data input for latch 3; state is transferred to Q3/Q3B on the CLOCK transition selected by POLARITY; max input current 1 µA at 18 V."
      },
      {
        "number": "3",
        "name": "D4",
        "type": "input",
        "description": "Data input for latch 4; state is transferred to Q4/Q4B on the CLOCK transition selected by POLARITY; max input current 1 µA at 18 V."
      },
      {
        "number": "4",
        "name": "Q4B",
        "type": "output",
        "description": "Complementary (inverted) latch output for latch 4; valid after the active CLOCK edge; max output low/high current 120 µA typ at 10 V."
      },
      {
        "number": "5",
        "name": "Q4",
        "type": "output",
        "description": "Non-inverting latch output for latch 4; follows D4 at the active CLOCK edge and holds until the next active CLOCK edge."
      },
      {
        "number": "6",
        "name": "CLOCK",
        "type": "input",
        "description": "Common clock input shared by all four latches; positive-going transition is active when POLARITY=0, negative-going transition is active when POLARITY=1; minimum clock pulse width 100 ns at 5 V."
      },
      {
        "number": "7",
        "name": "POLARITY",
        "type": "input",
        "description": "Polarity control input: POLARITY=0 causes data transfer on the positive-going CLOCK edge; POLARITY=1 causes data transfer on the negative-going CLOCK edge."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference (0 V); all signal levels are referenced to VSS."
      },
      {
        "number": "9",
        "name": "Q1",
        "type": "output",
        "description": "Non-inverting latch output for latch 1; follows D1 at the active CLOCK edge and holds until the next active CLOCK edge."
      },
      {
        "number": "10",
        "name": "D1",
        "type": "input",
        "description": "Data input for latch 1; state is transferred to Q1/Q1B on the CLOCK transition selected by POLARITY; max input current 1 µA at 18 V."
      },
      {
        "number": "11",
        "name": "D2",
        "type": "input",
        "description": "Data input for latch 2; state is transferred to Q2/Q2B on the CLOCK transition selected by POLARITY; max input current 1 µA at 18 V."
      },
      {
        "number": "12",
        "name": "Q2B",
        "type": "output",
        "description": "Complementary (inverted) latch output for latch 2; valid after the active CLOCK edge; max output low/high current 120 µA typ at 10 V."
      },
      {
        "number": "13",
        "name": "Q2",
        "type": "output",
        "description": "Non-inverting latch output for latch 2; follows D2 at the active CLOCK edge and holds until the next active CLOCK edge."
      },
      {
        "number": "14",
        "name": "Q1B",
        "type": "output",
        "description": "Complementary (inverted) latch output for latch 1; valid after the active CLOCK edge; propagation delay to Q 110 ns typ at 5 V."
      },
      {
        "number": "15",
        "name": "Q3",
        "type": "output",
        "description": "Non-inverting latch output for latch 3; follows D3 at the active CLOCK edge and holds until the next active CLOCK edge."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply voltage; operating range 3 V to 18 V (absolute maximum 20 V); quiescent device current 0.02 µA typ at 5 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd4042b.pdf",
        "pages": 34,
        "sha256": "ef4e092831d2b059",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
    },
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        "units": "mm",
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        "seat": "z = 0",
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-20",
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  }
}