eV1527

{
  "schema_version": 1,
  "type": "component",
  "slug": "ev1527",
  "title": "eV1527",
  "brief": "Vollgo Signal Switches / Encoders & Decoders / Multiplexers, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "ev1527"
  ],
  "component": {
    "mpn": "eV1527",
    "manufacturer": "Vollgo",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Logic",
    "subcategory": "Signal Switches / Encoders & Decoders / Multiplexers",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2401121839_Vollgo-eV1527_C20539409.pdf",
    "parts": {
      "symbol": "ev1527.kicad_sym",
      "footprint": "ev1527.kicad_mod",
      "model_3d": "ev1527-etched.glb",
      "model_3d_plain": "ev1527.glb",
      "model_3d_step": "ev1527-etched.step",
      "model_3d_step_plain": "ev1527.step",
      "lbr": "ev1527.lbr"
    },
    "distributor_links": {
      "lcsc": "C20539409"
    },
    "pins": [
      {
        "number": "1",
        "name": "OSC",
        "type": "passive",
        "description": "Oscillator resistor input. Connect an external resistor (recommended 330 kΩ) from this pin to VCC to set the internal oscillator frequency (typ. Fop = 80 kHz). Timing/delay varies with Rosc per the datasheet resistor table."
      },
      {
        "number": "2",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply rail. Operating range 3.0 V to 13 V (absolute max 14 V). Operating current ~0.5 mA typ; static current <1.0 µA (OSC stopped, output unloaded)."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / negative supply reference (0 V) for the device."
      },
      {
        "number": "4",
        "name": "TXD",
        "type": "output",
        "description": "Serial encoded data output. Transmits the sync bit, the 20-bit pre-burned ID code (C0-C19) and the 4 data bits (D0-D3) mapped from K0-K3. Source current Ioh ≥ 5 mA and sink current Iol ≥ 3 mA at VCC=12 V, VO=6 V."
      },
      {
        "number": "5",
        "name": "K0",
        "type": "input",
        "description": "Key/trigger input 0 with internal pull-down resistor. Active-high; drive high (e.g. via a button to VCC) to transmit code with D0=1. Any K0-K3 asserted initiates a transmission frame on TXD."
      },
      {
        "number": "6",
        "name": "K1",
        "type": "input",
        "description": "Key/trigger input 1 with internal pull-down resistor. Active-high; drive high to transmit code with D1=1. K0-K3 may be combined for up to 15 unique key codes (see K0-K3 combination table)."
      },
      {
        "number": "7",
        "name": "K2",
        "type": "input",
        "description": "Key/trigger input 2 with internal pull-down resistor. Active-high; drive high to transmit code with D2=1. Combine with K0/K1/K3 for multi-key codes."
      },
      {
        "number": "8",
        "name": "K3",
        "type": "input",
        "description": "Key/trigger input 3 with internal pull-down resistor. Active-high; drive high to transmit code with D3=1. Combine with K0/K1/K2 for multi-key codes."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2401121839_Vollgo-eV1527_C20539409.pdf",
        "pages": 8,
        "sha256": "d461c195773d69f8",
        "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": "ev1527.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": "ev1527-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": "e42a080f09a80a4df23de4d8be1e6e60ea19ebb3997acac00c3ed3fa62b38760",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Vollgo",
      "Package": "SOP-8",
      "Category": "Logic",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ev1527"
  ],
  "discovery_pitch": "eV1527 (Vollgo) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ev1527.kicad_sym",
    "ev1527.kicad_mod",
    "ev1527.glb",
    "ev1527.step",
    "ev1527-etched.step",
    "ev1527.lbr",
    "docs/hero.png",
    "docs/ev1527-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T20:29:05.978Z"
}