main
Ray Set visibility: public 7407ad3 5d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cd4543bpwr",
  "title": "CD4543BPWR",
  "brief": "Texas Instruments LCD Drivers, TSSOP-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led drivers",
    "cd4543bpwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CD4543BPWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "LED Drivers",
    "subcategory": "LCD Drivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd4543b.pdf",
    "parts": {
      "symbol": "cd4543bpwr.kicad_sym",
      "footprint": "cd4543bpwr.kicad_mod",
      "model_3d": "cd4543bpwr-hero.glb",
      "model_3d_plain": "cd4543bpwr-etched.glb",
      "model_3d_step": "cd4543bpwr-etched.step",
      "model_3d_step_plain": "cd4543bpwr.step",
      "lbr": "cd4543bpwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2859912",
      "digikey": "296-17106-2-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T16:13:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-17106-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LD",
        "type": "input",
        "description": "Latch Disable input; when LD=0 the four input latches are transparent and BCD data is decoded; when LD=1 the latches hold the last BCD code and inputs are ignored."
      },
      {
        "number": "2",
        "name": "C",
        "type": "input",
        "description": "BCD data input C (bit 2); one of four BCD inputs decoded to drive the seven-segment outputs; all inputs protected by CMOS protection network."
      },
      {
        "number": "3",
        "name": "B",
        "type": "input",
        "description": "BCD data input B (bit 1); one of four BCD inputs decoded to drive the seven-segment outputs; all inputs protected by CMOS protection network."
      },
      {
        "number": "4",
        "name": "D",
        "type": "input",
        "description": "BCD data input D (bit 3, MSB); one of four BCD inputs decoded to drive the seven-segment outputs; all inputs protected by CMOS protection network."
      },
      {
        "number": "5",
        "name": "A",
        "type": "input",
        "description": "BCD data input A (bit 0, LSB); one of four BCD inputs decoded to drive the seven-segment outputs; all inputs protected by CMOS protection network."
      },
      {
        "number": "6",
        "name": "Ph",
        "type": "input",
        "description": "Phase input; apply square wave for LCD operation; connect to VSS (Ph=0) for common-cathode LED or to VDD (Ph=1) for common-anode LED; when LD=1 outputs are the inverse of normal combinations."
      },
      {
        "number": "7",
        "name": "BL",
        "type": "input",
        "description": "Blanking input; when BL=1 and LD=0, all seven segment outputs are forced off regardless of BCD input code."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative supply (GND) reference, 0 V; supply voltage range VDD−VSS = 3 V min to 18 V max."
      },
      {
        "number": "9",
        "name": "a",
        "type": "output",
        "description": "Seven-segment display driver output for segment a (top horizontal); output polarity determined by Ph input; capable of driving TTL loads or one low-power Schottky load."
      },
      {
        "number": "10",
        "name": "b",
        "type": "output",
        "description": "Seven-segment display driver output for segment b (upper-right vertical); output polarity determined by Ph input; capable of driving TTL loads or one low-power Schottky load."
      },
      {
        "number": "11",
        "name": "c",
        "type": "output",
        "description": "Seven-segment display driver output for segment c (lower-right vertical); output polarity determined by Ph input; capable of driving TTL loads or one low-power Schottky load."
      },
      {
        "number": "12",
        "name": "d",
        "type": "output",
        "description": "Seven-segment display driver output for segment d (bottom horizontal); output polarity determined by Ph input; capable of driving TTL loads or one low-power Schottky load."
      },
      {
        "number": "13",
        "name": "e",
        "type": "output",
        "description": "Seven-segment display driver output for segment e (lower-left vertical); output polarity determined by Ph input; capable of driving TTL loads or one low-power Schottky load."
      },
      {
        "number": "14",
        "name": "g",
        "type": "output",
        "description": "Seven-segment display driver output for segment g (middle horizontal); output polarity determined by Ph input; capable of driving TTL loads or one low-power Schottky load."
      },
      {
        "number": "15",
        "name": "f",
        "type": "output",
        "description": "Seven-segment display driver output for segment f (upper-left vertical); output polarity determined by Ph input; capable of driving TTL loads or one low-power Schottky load."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply voltage; operating range 3 V to 18 V (full package temperature range); absolute maximum −0.5 V to +20 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd4543b.pdf",
        "pages": 20,
        "sha256": "3cec60d19f903f4c",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "cd4543bpwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd4543bpwr-etched.step",
        "role": "eda",
        "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": "736b32393fc0eb6c602beb16a8bb1dede5f4d14ddd12822f6e41ef68e89ecd85",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-16",
      "Category": "LED Drivers",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd4543bpwr"
  ],
  "discovery_pitch": "CD4543BPWR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "cd4543bpwr.step",
    "cd4543bpwr.lbr",
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    "docs/cd4543bpwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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    "cd4543bpwr-hero.overlay.json",
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  "visibility": {
    "public": true
  }
}