MCP23S17T-E/SS

{
 "schema": "adom.pads/1",
 "slug": "mcp23s17t-e",
 "footprint": "SSOP-28_5.3x10.2mm_P0.65mm",
 "generated_from": {
  "footprint": "SSOP-28_5.3x10.2mm_P0.65mm@sha256:bbb0d0449b996c0a",
  "pins": "page.json:component.pins",
  "overrides": null
 },
 "pin1": {
  "pad": "1",
  "at": [
   -3.5,
   -4.225
  ],
  "corner": "top-left",
  "source": "silk-marker",
  "derived_from": "SSOP-28_5.3x10.2mm_P0.65mm@sha256:bbb0d0449b996c0a"
 },
 "pad_count": 28,
 "symbol_pins": [
  "1",
  "10",
  "11",
  "12",
  "13",
  "14",
  "15",
  "16",
  "17",
  "18",
  "19",
  "2",
  "20",
  "21",
  "22",
  "23",
  "24",
  "25",
  "26",
  "27",
  "28",
  "3",
  "4",
  "5",
  "6",
  "7",
  "8",
  "9"
 ],
 "paste_apertures": 0,
 "issues": [],
 "pads": [
  {
   "pad": "1",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    -4.225
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "1",
   "name": "GPB0",
   "type": "bidirectional",
   "description": "PORTB bit 0. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": true,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "2",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    -3.575
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "2",
   "name": "GPB1",
   "type": "bidirectional",
   "description": "PORTB bit 1. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "3",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    -2.925
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "3",
   "name": "GPB2",
   "type": "bidirectional",
   "description": "PORTB bit 2. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "4",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    -2.275
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "4",
   "name": "GPB3",
   "type": "bidirectional",
   "description": "PORTB bit 3. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "5",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    -1.625
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "5",
   "name": "GPB4",
   "type": "bidirectional",
   "description": "PORTB bit 4. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "6",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    -0.975
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "6",
   "name": "GPB5",
   "type": "bidirectional",
   "description": "PORTB bit 5. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "7",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    -0.325
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "7",
   "name": "GPB6",
   "type": "bidirectional",
   "description": "PORTB bit 6. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "8",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    0.325
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "8",
   "name": "GPB7",
   "type": "bidirectional",
   "description": "PORTB bit 7. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "9",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    0.975
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "9",
   "name": "VDD",
   "type": "power_in",
   "description": "Positive supply voltage. Operating range 1.8 V to 5.5 V (industrial) or 4.5 V to 5.5 V (extended, -40 to +125°C). Bypass locally with 0.1 µF.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "10",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    1.625
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "10",
   "name": "VSS",
   "type": "power_in",
   "description": "Ground reference (0 V).",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "11",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    2.275
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "11",
   "name": "CS",
   "type": "input",
   "description": "SPI chip select, active low. Frames a SPI transaction on the MCP23S17.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "12",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    2.925
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "12",
   "name": "SCK",
   "type": "input",
   "description": "SPI serial clock input (up to 10 MHz).",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "13",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    3.575
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "13",
   "name": "SI",
   "type": "input",
   "description": "SPI serial data input (MOSI from host).",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "14",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -3.5,
    4.225
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "14",
   "name": "SO",
   "type": "output",
   "description": "SPI serial data output (MISO to host). Typically driven only during a read cycle.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "15",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    4.225
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "15",
   "name": "A0",
   "type": "input",
   "description": "Hardware address bit 0. Must be externally tied to VDD or VSS; combined with A1/A2 forms the SPI device address.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "16",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    3.575
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "16",
   "name": "A1",
   "type": "input",
   "description": "Hardware address bit 1. Must be externally tied to VDD or VSS.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "17",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    2.925
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "17",
   "name": "A2",
   "type": "input",
   "description": "Hardware address bit 2. Must be externally tied to VDD or VSS; up to 8 devices share the bus.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "18",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    2.275
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "18",
   "name": "RESET",
   "type": "input",
   "description": "Hardware reset, active low. Must be tied high (or driven high) for normal operation; asserting low returns all registers to POR defaults.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "19",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    1.625
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "19",
   "name": "INTB",
   "type": "output",
   "description": "Interrupt output for PORTB. Configurable as active-high, active-low, or open-drain (via IOCON register).",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "20",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    0.975
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "20",
   "name": "INTA",
   "type": "output",
   "description": "Interrupt output for PORTA. Configurable as active-high, active-low, or open-drain; can be mirrored with INTB.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "21",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    0.325
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "21",
   "name": "GPA0",
   "type": "bidirectional",
   "description": "PORTA bit 0. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "22",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    -0.325
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "22",
   "name": "GPA1",
   "type": "bidirectional",
   "description": "PORTA bit 1. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "23",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    -0.975
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "23",
   "name": "GPA2",
   "type": "bidirectional",
   "description": "PORTA bit 2. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "24",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    -1.625
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "24",
   "name": "GPA3",
   "type": "bidirectional",
   "description": "PORTA bit 3. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "25",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    -2.275
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "25",
   "name": "GPA4",
   "type": "bidirectional",
   "description": "PORTA bit 4. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "26",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    -2.925
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "26",
   "name": "GPA5",
   "type": "bidirectional",
   "description": "PORTA bit 5. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "27",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    -3.575
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "27",
   "name": "GPA6",
   "type": "bidirectional",
   "description": "PORTA bit 6. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "28",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    3.5,
    -4.225
   ],
   "rot": 0.0,
   "size": [
    1.9,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "28",
   "name": "GPA7",
   "type": "bidirectional",
   "description": "PORTA bit 7. Bidirectional I/O pin with optional interrupt-on-change and internal weak pull-up.",
   "is_pin1": false,
   "source": {
    "geometry": "SSOP-28_5.3x10.2mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  }
 ]
}