LS7366R-S

{
  "slug": "ls7366r-s",
  "version": "0.1.0",
  "type": "component",
  "description": "LSI CSI Counters, Dividers, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "ls7366r-s",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ls7366r-s.kicad_sym",
    "ls7366r-s.kicad_mod",
    "ls7366r-s.glb",
    "ls7366r-s.step",
    "ls7366r-s.lbr",
    "docs/hero.png",
    "docs/ls7366r-s-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ls7366r-s-hero.glb",
    "ls7366r-s-hero.overlay.json",
    "ls7366r-s-etched.glb"
  ],
  "component": {
    "mpn": "LS7366R-S",
    "manufacturer": "LSI CSI",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Counters, Dividers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835455563788288",
    "parts": {
      "symbol": "ls7366r-s.kicad_sym",
      "footprint": "ls7366r-s.kicad_mod",
      "model_3d": "ls7366r-s-hero.glb",
      "model_3d_plain": "ls7366r-s-etched.glb",
      "model_3d_step": "ls7366r-s-etched.step",
      "model_3d_step_plain": "ls7366r-s.step",
      "lbr": "ls7366r-s.lbr"
    },
    "distributor_links": {
      "lcsc": "C3827808"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T23:40:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "fCKO",
        "type": "output",
        "description": "Crystal oscillator output; a crystal connected between fCKi and fCKO generates the basic filter clock for the A, B and INDEX/ inputs in quadrature count mode."
      },
      {
        "number": "2",
        "name": "fCKi",
        "type": "input",
        "description": "Filter clock input that accepts a crystal or an external clock, divided by 2 when MDR0 bit 7 = 1 and by 1 when it is 0, and must satisfy the filter-frequency condition relative to the maximum quadrature clock frequency fQA; in non-quadrature mode it is unused and should be tied to a stable logic state."
      },
      {
        "number": "3",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference; all voltages on the device are referenced to VSS."
      },
      {
        "number": "4",
        "name": "SS/",
        "type": "input",
        "description": "Active-low slave select; a high-to-low transition selects the device for serial transfer and a low-to-high transition ends the transfer and forces MISO to high impedance."
      },
      {
        "number": "5",
        "name": "SCK",
        "type": "input",
        "description": "Serial shift clock supplied by the host processor (slave mode only) that synchronizes MOSI and MISO data transfer."
      },
      {
        "number": "6",
        "name": "MISO",
        "type": "tri_state",
        "description": "Serial data output that shifts data out MSB first on the trailing (low) SCK edges and goes to high impedance when SS/ is high, allowing wire-OR connection of multiple slaves."
      },
      {
        "number": "7",
        "name": "MOSI",
        "type": "input",
        "description": "Serial data input (RXD) that receives MSB-first data from the host processor on the leading (high) SCK edges."
      },
      {
        "number": "8",
        "name": "LFLAG/",
        "type": "output",
        "description": "Open-drain latched flag output for carry, borrow, compare and index conditions that goes low when active and returns to high impedance only when the status register STR is cleared."
      },
      {
        "number": "9",
        "name": "DFLAG/",
        "type": "output",
        "description": "Push-pull instantaneous flag output that dynamically switches low with carry, borrow, compare and index conditions."
      },
      {
        "number": "10",
        "name": "INDEX/",
        "type": "input",
        "description": "Programmable index input that can load CNTR from DTR, reset CNTR, load OTR from CNTR, or be masked; in quadrature mode it operates synchronously or asynchronously as set in MDR0."
      },
      {
        "number": "11",
        "name": "B",
        "type": "input",
        "description": "Quadrature clock B input that is filtered and decoded for direction in quadrature mode, and acts as the direction input in non-quadrature mode (high enables up count)."
      },
      {
        "number": "12",
        "name": "A",
        "type": "input",
        "description": "Quadrature clock A input that is filtered and decoded for count clocks in quadrature mode, and acts as the count input in non-quadrature mode."
      },
      {
        "number": "13",
        "name": "CNT_EN",
        "type": "input",
        "description": "Count enable input with an internal pull-up; counting is enabled when high and disabled when low."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply input; the device operates from 3 V to 5.5 V referenced to VSS."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives one pin assignment (Figure 1, a text-extracted top view) for all variants (DIP, ; Pin 14 (VDD) was not explicitly labelled with a number in the text; it is taken from the Figure 1 la; The filter-frequency condition for fCKi is printed with a symbol lost in extraction (' ff 4fQA'), so"
        ],
        "pages_sent": 17,
        "cost_usd": 0.0881,
        "at": "2026-10-17T23:35:11"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835455563788288",
        "pages": 17,
        "sha256": "51b1ffc0846b8ad0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ls7366r-s.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ls7366r-s-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f1ec7597a8054c46116759d47f0103971a4e59cb43def42fc69cc31997c9de62",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}