{
  "id": "mcp23008-expander",
  "name": "MCP23008 8-bit I/O expander (DIP-18)",
  "category": "output",
  "pins": [
    {
      "name": "SCL",
      "role": "i2c_scl"
    },
    {
      "name": "SDA",
      "role": "i2c_sda"
    },
    {
      "name": "A2",
      "role": "passive",
      "notes": "Address bit: tie to GND or VDD"
    },
    {
      "name": "A1",
      "role": "passive"
    },
    {
      "name": "A0",
      "role": "passive"
    },
    {
      "name": "RESET",
      "role": "passive",
      "notes": "Reset, active LOW. Tie to VDD"
    },
    {
      "name": "NC",
      "role": "passive",
      "notes": "Not connected"
    },
    {
      "name": "INT",
      "role": "int",
      "notes": "Interrupt output, optional"
    },
    {
      "name": "VSS",
      "role": "ground"
    },
    {
      "name": "GP0",
      "role": "passive",
      "notes": "Expander I/O: to your LEDs or buttons, not to the ESP32"
    },
    {
      "name": "GP1",
      "role": "passive"
    },
    {
      "name": "GP2",
      "role": "passive"
    },
    {
      "name": "GP3",
      "role": "passive"
    },
    {
      "name": "GP4",
      "role": "passive"
    },
    {
      "name": "GP5",
      "role": "passive"
    },
    {
      "name": "GP6",
      "role": "passive"
    },
    {
      "name": "GP7",
      "role": "passive"
    },
    {
      "name": "VDD",
      "role": "power"
    }
  ],
  "bus": "i2c",
  "addresses": [
    "0x20",
    "0x21",
    "0x22",
    "0x23",
    "0x24",
    "0x25",
    "0x26",
    "0x27"
  ],
  "voltage": "3.3-5",
  "model": {
    "shape": "chip",
    "size": [
      46.7,
      6.4,
      3.3
    ],
    "color": "#1A1A1A"
  },
  "keywords": [
    "mcp23008",
    "io expander",
    "i2c expander",
    "gpio",
    "more pins",
    "espansore"
  ],
  "sources": [
    {
      "title": "Microchip MCP23008 datasheet",
      "section": "Pinout (PDIP 18); address 0100 A2 A1 A0 (0x20 to 0x27); supply 1.8 to 5.5 V; needs external I2C pull-ups"
    }
  ]
}