CD4528BM

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd4528bm",
  "title": "CD4528BM",
  "brief": "HGSEMI Monostable Multivibrators, SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "cd4528bm",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CD4528BM",
    "manufacturer": "HGSEMI",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Monostable Multivibrators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603359643905241088",
    "parts": {
      "symbol": "cd4528bm.kicad_sym",
      "footprint": "cd4528bm.kicad_mod",
      "model_3d": "cd4528bm-etched.glb",
      "model_3d_plain": "cd4528bm.glb",
      "model_3d_step": "cd4528bm-etched.step",
      "model_3d_step_plain": "cd4528bm.step",
      "lbr": "cd4528bm.lbr"
    },
    "distributor_links": {
      "lcsc": "C22446574"
    },
    "pins": [
      {
        "number": "1",
        "name": "T1A",
        "type": "passive",
        "description": "External timing capacitor Cx bottom terminal for monostable A; datasheet note states this pin must be connected externally to VSS (pin 8)."
      },
      {
        "number": "2",
        "name": "T2A",
        "type": "passive",
        "description": "External RC timing node for monostable A; Rx is connected from VDD to this pin and Cx between this pin and T1A to set output pulse width per PWout = 0.2·Rx·Cx·ln(VDD−VSS)."
      },
      {
        "number": "3",
        "name": "CDA",
        "type": "input",
        "description": "Active-low asynchronous clear/reset input for monostable A; a LOW level forces QA LOW and Q̄A HIGH regardless of trigger input states."
      },
      {
        "number": "4",
        "name": "AA",
        "type": "input",
        "description": "Positive-edge-sensitive trigger input A for monostable A; a LOW-to-HIGH transition initiates the output pulse when CD is HIGH and B input is HIGH."
      },
      {
        "number": "5",
        "name": "AB",
        "type": "input",
        "description": "Negative-edge-sensitive trigger input B for monostable A; a HIGH-to-LOW transition initiates the output pulse when CD is HIGH and A input is LOW."
      },
      {
        "number": "6",
        "name": "QA",
        "type": "output",
        "description": "Non-inverting monostable pulse output for circuit A; HIGH pulse width is determined by external Rx and Cx timing components; VOH min 4.95 V at VDD = 5 V."
      },
      {
        "number": "7",
        "name": "/QA",
        "type": "output",
        "description": "Complementary inverting monostable pulse output for circuit A; LOW pulse is concurrent with QA HIGH pulse; VOL max 0.05 V at VDD = 5 V."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative supply / ground reference; defined as 0 V; timing capacitor terminals T1A and T1B must be connected here externally."
      },
      {
        "number": "9",
        "name": "/QB",
        "type": "output",
        "description": "Complementary inverting monostable pulse output for circuit B; LOW pulse is concurrent with QB HIGH pulse; VOL max 0.05 V at VDD = 5 V."
      },
      {
        "number": "10",
        "name": "QB",
        "type": "output",
        "description": "Non-inverting monostable pulse output for circuit B; HIGH pulse width is determined by external Rx and Cx timing components; VOH min 4.95 V at VDD = 5 V."
      },
      {
        "number": "11",
        "name": "BB",
        "type": "input",
        "description": "Negative-edge-sensitive trigger input B for monostable B; a HIGH-to-LOW transition initiates the output pulse when CD is HIGH and A input is LOW."
      },
      {
        "number": "12",
        "name": "BA",
        "type": "input",
        "description": "Positive-edge-sensitive trigger input A for monostable B; a LOW-to-HIGH transition initiates the output pulse when CD is HIGH and B input is HIGH."
      },
      {
        "number": "13",
        "name": "CDB",
        "type": "input",
        "description": "Active-low asynchronous clear/reset input for monostable B; a LOW level forces QB LOW and Q̄B HIGH regardless of trigger input states."
      },
      {
        "number": "14",
        "name": "T2B",
        "type": "passive",
        "description": "External RC timing node for monostable B; Rx is connected from VDD to this pin and Cx between this pin and T1B to set output pulse width per PWout = 0.2·Rx·Cx·ln(VDD−VSS)."
      },
      {
        "number": "15",
        "name": "T1B",
        "type": "passive",
        "description": "External timing capacitor Cx bottom terminal for monostable B; datasheet note states this pin must be connected externally to VSS (pin 8)."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply voltage; recommended operating range 3 V to 15 V, absolute maximum 18 V; quiescent current typ. 5 nA/package at 5 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-sonnet-4-6",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-4-7",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.4563,
        "at": "2026-09-17T22:05:26"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603359643905241088",
        "pages": 11,
        "sha256": "ceca0343149c8755",
        "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"
    },
    "models_3d": [
      {
        "file": "cd4528bm.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": "cd4528bm-etched.step",
        "role": "eda",
        "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": "ad4c9e43ade5ae68ee0381202b9503c3a7469736f0759cc023c1be3bf96841cd",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOP-16",
      "Category": "Logic",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd4528bm"
  ],
  "discovery_pitch": "CD4528BM (HGSEMI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd4528bm.kicad_sym",
    "cd4528bm.kicad_mod",
    "cd4528bm.glb",
    "cd4528bm.step",
    "cd4528bm.lbr",
    "docs/hero.png",
    "docs/cd4528bm-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T18:51:39.619Z"
}