SN74LS390N

{
  "slug": "sn74ls390n",
  "version": "0.1.0",
  "type": "component",
  "description": "XBLW Counters, Dividers, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74ls390n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ls390n.kicad_sym",
    "sn74ls390n.kicad_mod",
    "sn74ls390n.glb",
    "sn74ls390n.step",
    "sn74ls390n.lbr",
    "docs/hero.png",
    "docs/sn74ls390n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ls390n-hero.glb",
    "sn74ls390n-hero.overlay.json",
    "sn74ls390n-etched.glb"
  ],
  "component": {
    "mpn": "SN74LS390N",
    "manufacturer": "XBLW",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Counters, Dividers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1f492f6d5dc85f45e33fffb4d251b37e.pdf",
    "parts": {
      "symbol": "sn74ls390n.kicad_sym",
      "footprint": "sn74ls390n.kicad_mod",
      "model_3d": "sn74ls390n-hero.glb",
      "model_3d_plain": "sn74ls390n-etched.glb",
      "model_3d_step": "sn74ls390n-etched.step",
      "model_3d_step_plain": "sn74ls390n.step",
      "lbr": "sn74ls390n.lbr"
    },
    "distributor_links": {
      "lcsc": "C47021210",
      "digikey": "296-26516-5-ND",
      "mouser": "595-SN74LS390N"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T20:42:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-26516-5-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN74LS390N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1CP0",
        "type": "input",
        "description": "Clock input (active HIGH-to-LOW edge-triggered) of the counter 1 divide-by-2 section."
      },
      {
        "number": "2",
        "name": "1MR",
        "type": "input",
        "description": "Asynchronous master reset input of counter 1, active HIGH."
      },
      {
        "number": "3",
        "name": "1Q0",
        "type": "output",
        "description": "Flip-flop output Q0 of counter 1."
      },
      {
        "number": "4",
        "name": "1CP1",
        "type": "input",
        "description": "Clock input (HIGH-to-LOW edge-triggered) of the counter 1 divide-by-5 section."
      },
      {
        "number": "5",
        "name": "1Q1",
        "type": "output",
        "description": "Flip-flop output Q1 of counter 1."
      },
      {
        "number": "6",
        "name": "1Q2",
        "type": "output",
        "description": "Flip-flop output Q2 of counter 1."
      },
      {
        "number": "7",
        "name": "1Q3",
        "type": "output",
        "description": "Flip-flop output Q3 of counter 1."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0V)."
      },
      {
        "number": "9",
        "name": "2Q3",
        "type": "output",
        "description": "Flip-flop output Q3 of counter 2."
      },
      {
        "number": "10",
        "name": "2Q2",
        "type": "output",
        "description": "Flip-flop output Q2 of counter 2."
      },
      {
        "number": "11",
        "name": "2Q1",
        "type": "output",
        "description": "Flip-flop output Q1 of counter 2."
      },
      {
        "number": "12",
        "name": "2CP1",
        "type": "input",
        "description": "Clock input (HIGH-to-LOW edge-triggered) of the counter 2 divide-by-5 section."
      },
      {
        "number": "13",
        "name": "2Q0",
        "type": "output",
        "description": "Flip-flop output Q0 of counter 2."
      },
      {
        "number": "14",
        "name": "2MR",
        "type": "input",
        "description": "Asynchronous master reset input of counter 2, active HIGH."
      },
      {
        "number": "15",
        "name": "2CP0",
        "type": "input",
        "description": "Clock input (HIGH-to-LOW edge-triggered) of the counter 2 divide-by-2 section."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.3286,
        "at": "2026-10-16T20:42:04"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/1f492f6d5dc85f45e33fffb4d251b37e.pdf",
        "pages": 15,
        "sha256": "a0c6ca959a7581bf",
        "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": "sn74ls390n.step",
        "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": 0.0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74ls390n-etched.step",
        "role": "eda",
        "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": 0.0,
        "footprint_binding": "identity",
        "sha256": "9b2b91a153fd36a2bf11e470b9d7f21994022e692763896dceab24b02b6aa9f1",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}