HK24C16HA-USR-B

{
  "schema_version": 1,
  "type": "component",
  "slug": "hk24c16ha-usr-b",
  "title": "HK24C16HA-USR-B",
  "brief": "HK EEPROM, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "memory",
    "hk24c16ha-usr-b"
  ],
  "component": {
    "mpn": "HK24C16HA-USR-B",
    "manufacturer": "HK",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3f798ec6b8aa7a553043107e47d37b4e.pdf",
    "parts": {
      "symbol": "hk24c16ha-usr-b.kicad_sym",
      "footprint": "hk24c16ha-usr-b.kicad_mod",
      "model_3d": "hk24c16ha-usr-b-etched.glb",
      "model_3d_plain": "hk24c16ha-usr-b.glb",
      "model_3d_step": "hk24c16ha-usr-b-etched.step",
      "model_3d_step_plain": "hk24c16ha-usr-b.step",
      "lbr": "hk24c16ha-usr-b.lbr"
    },
    "distributor_links": {
      "lcsc": "C33576252"
    },
    "pins": [
      {
        "number": "1",
        "name": "A0",
        "type": "input",
        "description": "Device / chip-select address input A0. Not used on HK24C16 (16Kbit variant) because the three MSBs of the internal word address consume the 5th-7th device-address bits; per datasheet 'HK24C16 chip select address pin A2, A1 and A0 are not used'. Tie to VIL or leave floating (internally recognized as VIL)."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Device / chip-select address input A1. Not used on HK24C16; tie to VIL or leave floating (internally pulled to VIL)."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Device / chip-select address input A2. Not used on HK24C16; tie to VIL or leave floating (internally pulled to VIL)."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V) for supply and I/O logic levels."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial data line for the 2-wire (I2C-compatible) bus. Open-drain output that can be wired-OR with other open-drain devices; requires an external pull-up resistor to VCC. Bidirectional data in/out at up to 1 MHz (5 V) or 400 kHz (1.8/2.5/2.7 V)."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock input for the 2-wire bus. Rising edge latches data into the EEPROM, falling edge clocks data out. Schmitt-triggered input for noise immunity; requires external pull-up."
      },
      {
        "number": "7",
        "name": "WP",
        "type": "input",
        "description": "Write-protect input. When tied to VIH or VCC, all programming (write) operations to the EEPROM array are disabled; read operations are unaffected. When left unconnected or tied to VIL, programming is allowed (internally recognized as VIL when floating)."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply input. Operating range 1.8 V to 5.5 V. Typical currents: 10 nA standby, 200 µA read, 300 µA write (500 µA max)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/3f798ec6b8aa7a553043107e47d37b4e.pdf",
        "pages": 18,
        "sha256": "f53dc392d6661c3b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "hk24c16ha-usr-b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hk24c16ha-usr-b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c2881d183327d1968028c5cfc4a49230e6fddcce2e5574a8a17e0b1564fd1dd9",
        "checked": "2026-11-03",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HK",
      "Package": "SOP-8",
      "Category": "Memory",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "hk24c16ha-usr-b"
  ],
  "discovery_pitch": "HK24C16HA-USR-B (HK) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "hk24c16ha-usr-b.kicad_sym",
    "hk24c16ha-usr-b.kicad_mod",
    "hk24c16ha-usr-b.glb",
    "hk24c16ha-usr-b.step",
    "hk24c16ha-usr-b-etched.step",
    "hk24c16ha-usr-b.lbr",
    "docs/hero.png",
    "docs/hk24c16ha-usr-b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T21:55:00.932Z"
}