CD4543BM96

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd4543bm96",
  "title": "CD4543BM96",
  "brief": "Texas Instruments LCD Drivers, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "cd4543bm96"
  ],
  "component": {
    "mpn": "CD4543BM96",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "LED-drv",
    "subcategory": "LCD Drivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd4543bm96.pdf",
    "parts": {
      "symbol": "cd4543bm96.kicad_sym",
      "footprint": "cd4543bm96.kicad_mod",
      "model_3d": "cd4543bm96-etched.glb",
      "model_3d_plain": "cd4543bm96.glb",
      "model_3d_step": "cd4543bm96-etched.step",
      "model_3d_step_plain": "cd4543bm96.step",
      "lbr": "cd4543bm96.lbr"
    },
    "distributor_links": {
      "digikey": "296-31539-2-ND",
      "lcsc": "C28326"
    },
    "pins": [
      {
        "number": "1",
        "name": "LD",
        "type": "input",
        "description": "Latch Disable input. When LD=1 the input BCD data is latched; when LD=0 the outputs are transparent to the BCD inputs. Active-high latch-disable per the truth table."
      },
      {
        "number": "2",
        "name": "C",
        "type": "input",
        "description": "BCD data input C (weight 2^2). CMOS logic input with typical input capacitance 5 pF; VIH >= 3.5 V at VDD=5 V."
      },
      {
        "number": "3",
        "name": "B",
        "type": "input",
        "description": "BCD data input B (weight 2^1). CMOS logic input, VIH >= 3.5 V at VDD=5 V."
      },
      {
        "number": "4",
        "name": "D",
        "type": "input",
        "description": "BCD data input D (weight 2^3, MSB). CMOS logic input, VIH >= 3.5 V at VDD=5 V."
      },
      {
        "number": "5",
        "name": "A",
        "type": "input",
        "description": "BCD data input A (weight 2^0, LSB). CMOS logic input, VIH >= 3.5 V at VDD=5 V."
      },
      {
        "number": "6",
        "name": "PHASE",
        "type": "input",
        "description": "Phase input (Ph). For LCD readouts apply a square wave (typ. 30-200 Hz) equal to the LCD backplane. For common-cathode LEDs set Ph=0; for common-anode LEDs set Ph=1. Controls output-polarity XOR stage."
      },
      {
        "number": "7",
        "name": "BL",
        "type": "input",
        "description": "Blanking input (BI). BI=1 forces all seven segment outputs to the blank state regardless of BCD inputs; BI=0 enables normal decode. Tie to VSS for pin-for-pin CD4056B replacement."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative supply / ground reference. All voltages are referenced to VSS."
      },
      {
        "number": "9",
        "name": "a",
        "type": "output",
        "description": "Seven-segment display output 'a'. CMOS push-pull output capable of driving LCD segments, LEDs, or TTL/HTL loads; typical IOH ~-0.75 mA and IOL ~1 mA at VDD=5 V."
      },
      {
        "number": "10",
        "name": "b",
        "type": "output",
        "description": "Seven-segment display output 'b'. CMOS push-pull; drives LCD, LED, or logic loads."
      },
      {
        "number": "11",
        "name": "c",
        "type": "output",
        "description": "Seven-segment display output 'c'. CMOS push-pull; drives LCD, LED, or logic loads."
      },
      {
        "number": "12",
        "name": "d",
        "type": "output",
        "description": "Seven-segment display output 'd'. CMOS push-pull; drives LCD, LED, or logic loads."
      },
      {
        "number": "13",
        "name": "e",
        "type": "output",
        "description": "Seven-segment display output 'e'. CMOS push-pull; drives LCD, LED, or logic loads."
      },
      {
        "number": "14",
        "name": "g",
        "type": "output",
        "description": "Seven-segment display output 'g'. CMOS push-pull; drives LCD, LED, or logic loads."
      },
      {
        "number": "15",
        "name": "f",
        "type": "output",
        "description": "Seven-segment display output 'f'. CMOS push-pull; drives LCD, LED, or logic loads."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply. Recommended operating range 3 V to 18 V; absolute maximum 20 V referenced to VSS. Bypass with a local ceramic capacitor."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd4543bm96.pdf",
        "pages": 17,
        "sha256": "1b246395cfbd8b03",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -4.445
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c",
      "mark": "drawn"
    },
    "logic": {
      "family_id": "CD4543",
      "logic_family": "CD4000",
      "function_code": "4543",
      "function_class": "Decoder",
      "function_name": "BCD-to-7-Segment Latch/Decoder/Driver (LCD-capable)",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
    "models_3d": [
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        "file": "cd4543bm96.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd4543bm96-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": "d13a970d624553207bae5300941a5b08cb124379620cdb1095b636b3e55945a0",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-16",
      "Category": "LED-drv",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd4543bm96"
  ],
  "discovery_pitch": "CD4543BM96 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd4543bm96.kicad_sym",
    "cd4543bm96.kicad_mod",
    "cd4543bm96.glb",
    "cd4543bm96.step",
    "cd4543bm96-etched.step",
    "cd4543bm96.lbr",
    "docs/hero.png",
    "docs/cd4543bm96-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "CD4543BM96M",
      "kind": "packaging"
    },
    {
      "mpn": "CD4543BM96",
      "kind": "packaging"
    },
    {
      "mpn": "CD4543BM96NSR",
      "kind": "packaging"
    },
    {
      "mpn": "CD4543BM96E",
      "kind": "packaging"
    },
    {
      "mpn": "CD4543BM96PW",
      "kind": "packaging"
    },
    {
      "mpn": "CD4543BM96PWR",
      "kind": "packaging"
    },
    {
      "mpn": "CD4543BM96MT",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T18:52:28.481Z"
}