CD4511BE

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd4511be",
  "title": "CD4511BE",
  "brief": "Texas Instruments Digital Tube Drivers, DIP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led drivers",
    "cd4511be"
  ],
  "component": {
    "mpn": "CD4511BE",
    "manufacturer": "Texas Instruments",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "LED Drivers",
    "subcategory": "Digital Tube Drivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cd4511b",
    "parts": {
      "symbol": "cd4511be.kicad_sym",
      "footprint": "cd4511be.kicad_mod",
      "model_3d": "cd4511be-etched.glb",
      "model_3d_plain": "cd4511be.glb",
      "model_3d_step": "cd4511be-etched.step",
      "model_3d_step_plain": "cd4511be.step",
      "lbr": "cd4511be.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "BCD data input bit B (weight 2). CMOS logic input, protected by internal CMOS protection network. Referenced to VSS/VDD; VIH min ~3.5 V at VDD=5 V, ~7 V at VDD=10 V, 11 V at VDD=15 V."
      },
      {
        "number": "2",
        "name": "C",
        "type": "input",
        "description": "BCD data input bit C (weight 4). CMOS logic input latched into the internal 4-bit register when LE=0."
      },
      {
        "number": "3",
        "name": "LT",
        "type": "input",
        "description": "Lamp Test, active low. When LT=0 all seven segment outputs (a..g) are driven high to test the display, overriding BL and BCD inputs."
      },
      {
        "number": "4",
        "name": "BL",
        "type": "input",
        "description": "Blanking, active low. When BL=0 (and LT=1) all seven segment outputs are blanked (driven low). Used for intensity modulation, strobing, or leading-zero suppression."
      },
      {
        "number": "5",
        "name": "LE/STROBE",
        "type": "input",
        "description": "Latch Enable / Strobe. When LE=0 the BCD input data is passed through to the decoder; when LE=1 the last BCD data is latched and the display is held. Minimum strobe pulse width 400 ns at VDD=5 V."
      },
      {
        "number": "6",
        "name": "D",
        "type": "input",
        "description": "BCD data input bit D (weight 8, MSB). BCD input codes greater than 1001 (>9) blank the display."
      },
      {
        "number": "7",
        "name": "A",
        "type": "input",
        "description": "BCD data input bit A (weight 1, LSB). CMOS logic input referenced to VSS/VDD."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative supply / ground reference. Typically connected to 0 V. Absolute maximum VDD relative to VSS is -0.5 V to +20 V."
      },
      {
        "number": "9",
        "name": "e",
        "type": "output",
        "description": "Segment 'e' output. Active-high n-p-n bipolar current-sourcing driver capable of sourcing up to 25 mA for direct drive of common-cathode LED, incandescent, or low-voltage fluorescent segment displays."
      },
      {
        "number": "10",
        "name": "d",
        "type": "output",
        "description": "Segment 'd' output. Active-high n-p-n bipolar current-sourcing driver, up to 25 mA source current."
      },
      {
        "number": "11",
        "name": "c",
        "type": "output",
        "description": "Segment 'c' output. Active-high n-p-n bipolar current-sourcing driver, up to 25 mA source current."
      },
      {
        "number": "12",
        "name": "b",
        "type": "output",
        "description": "Segment 'b' output. Active-high n-p-n bipolar current-sourcing driver, up to 25 mA source current."
      },
      {
        "number": "13",
        "name": "a",
        "type": "output",
        "description": "Segment 'a' output. Active-high n-p-n bipolar current-sourcing driver, up to 25 mA source current."
      },
      {
        "number": "14",
        "name": "g",
        "type": "output",
        "description": "Segment 'g' output. Active-high n-p-n bipolar current-sourcing driver, up to 25 mA source current."
      },
      {
        "number": "15",
        "name": "f",
        "type": "output",
        "description": "Segment 'f' output. Active-high n-p-n bipolar current-sourcing driver, up to 25 mA source current."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply. Operating VDD range 3 V to 18 V (referenced to VSS). Absolute-maximum VDD is +20 V. Full-package temperature range -55 °C to +125 °C."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cd4511b",
        "pages": 19,
        "sha256": "64e032d04d526047",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "logic": {
      "family_id": "CD4511",
      "logic_family": "CD4000",
      "function_code": "4511",
      "function_class": "Decoder",
      "function_name": "BCD-to-7-Segment Latch/Decoder/Driver",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd4511be-etched.step",
        "role": "eda",
        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
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        "sha256": "9517e7e3b43926a0a50ae4a6b6995c4529df5cefd46a60ff85379da061666d0e",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "DIP-16",
      "Category": "LED Drivers",
      "Pins": "16"
    }
  },
  "variants": [
    {
      "mpn": "CD4511BEE",
      "kind": "packaging"
    },
    {
      "mpn": "CD4511BEF3A",
      "kind": "packaging"
    },
    {
      "mpn": "CD4511BENSR",
      "kind": "packaging"
    },
    {
      "mpn": "CD4511BEPW",
      "kind": "packaging"
    },
    {
      "mpn": "CD4511BEPWR",
      "kind": "packaging"
    }
  ],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd4511be"
  ],
  "discovery_pitch": "CD4511BE (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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    "cd4511be.glb",
    "cd4511be.step",
    "cd4511be.lbr",
    "docs/hero.png",
    "docs/cd4511be-datasheet.pdf",
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    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T18:50:50.297Z"
}