SN74HCT244PWR

{
 "schema": "adom.pads/1",
 "slug": "sn74hct244pwr",
 "footprint": "TSSOP-20_4.4x6.5mm_P0.65mm",
 "generated_from": {
  "footprint": "TSSOP-20_4.4x6.5mm_P0.65mm@sha256:b7ca3a31dd45c122",
  "pins": "page.json:component.pins",
  "overrides": null
 },
 "pin1": {
  "pad": "1",
  "at": [
   -2.8625,
   -2.925
  ],
  "corner": "top-left",
  "source": "silk-marker",
  "derived_from": "TSSOP-20_4.4x6.5mm_P0.65mm@sha256:b7ca3a31dd45c122"
 },
 "pad_count": 20,
 "symbol_pins": [
  "1",
  "10",
  "11",
  "12",
  "13",
  "14",
  "15",
  "16",
  "17",
  "18",
  "19",
  "2",
  "20",
  "3",
  "4",
  "5",
  "6",
  "7",
  "8",
  "9"
 ],
 "paste_apertures": 0,
 "issues": [],
 "pads": [
  {
   "pad": "1",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    -2.925
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "1",
   "name": "1OE",
   "type": "input",
   "description": "Active-low output enable for bank 1 (buffers 1A1-1A4 → 1Y1-1Y4). When low, bank 1 outputs pass the A input data. When high, bank 1 outputs are placed in the high-impedance state. Must be tied to VCC through a pull-up for high-Z during power up/down.",
   "is_pin1": true,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "2",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    -2.275
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "2",
   "name": "1A1",
   "type": "input",
   "description": "Bank 1 buffer input 1. TTL-compatible CMOS input; buffered non-inverting to 1Y1 when 1OE is low. VIH ≥ 2 V, VIL ≤ 0.8 V at VCC = 4.5-5.5 V; input current ≤ ±1 µA.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "3",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    -1.625
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "3",
   "name": "2Y4",
   "type": "tri_state",
   "description": "Bank 2 buffer output 4. 3-state, non-inverting output driven by 2A4 when 2OE is low; high-impedance when 2OE is high. ±6 mA output drive at 5 V.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "4",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    -0.975
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "4",
   "name": "1A2",
   "type": "input",
   "description": "Bank 1 buffer input 2. TTL-compatible CMOS input; buffered non-inverting to 1Y2 when 1OE is low.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "5",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    -0.325
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "5",
   "name": "2Y3",
   "type": "tri_state",
   "description": "Bank 2 buffer output 3. 3-state, non-inverting output driven by 2A3 when 2OE is low; high-impedance when 2OE is high.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "6",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    0.325
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "6",
   "name": "1A3",
   "type": "input",
   "description": "Bank 1 buffer input 3. TTL-compatible CMOS input; buffered non-inverting to 1Y3 when 1OE is low.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "7",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    0.975
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "7",
   "name": "2Y2",
   "type": "tri_state",
   "description": "Bank 2 buffer output 2. 3-state, non-inverting output driven by 2A2 when 2OE is low; high-impedance when 2OE is high.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "8",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    1.625
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "8",
   "name": "1A4",
   "type": "input",
   "description": "Bank 1 buffer input 4. TTL-compatible CMOS input; buffered non-inverting to 1Y4 when 1OE is low.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "9",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    2.275
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "9",
   "name": "2Y1",
   "type": "tri_state",
   "description": "Bank 2 buffer output 1. 3-state, non-inverting output driven by 2A1 when 2OE is low; high-impedance when 2OE is high.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "10",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -2.8625,
    2.925
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "10",
   "name": "GND",
   "type": "power_in",
   "description": "Device ground reference (0 V).",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "11",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    2.925
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "11",
   "name": "2A1",
   "type": "input",
   "description": "Bank 2 buffer input 1. TTL-compatible CMOS input; buffered non-inverting to 2Y1 when 2OE is low.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "12",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    2.275
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "12",
   "name": "1Y4",
   "type": "tri_state",
   "description": "Bank 1 buffer output 4. 3-state, non-inverting output driven by 1A4 when 1OE is low; high-impedance when 1OE is high.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "13",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    1.625
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "13",
   "name": "2A2",
   "type": "input",
   "description": "Bank 2 buffer input 2. TTL-compatible CMOS input; buffered non-inverting to 2Y2 when 2OE is low.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "14",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    0.975
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "14",
   "name": "1Y3",
   "type": "tri_state",
   "description": "Bank 1 buffer output 3. 3-state, non-inverting output driven by 1A3 when 1OE is low; high-impedance when 1OE is high.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "15",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    0.325
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "15",
   "name": "2A3",
   "type": "input",
   "description": "Bank 2 buffer input 3. TTL-compatible CMOS input; buffered non-inverting to 2Y3 when 2OE is low.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "16",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    -0.325
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "16",
   "name": "1Y2",
   "type": "tri_state",
   "description": "Bank 1 buffer output 2. 3-state, non-inverting output driven by 1A2 when 1OE is low; high-impedance when 1OE is high.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "17",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    -0.975
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "17",
   "name": "2A4",
   "type": "input",
   "description": "Bank 2 buffer input 4. TTL-compatible CMOS input; buffered non-inverting to 2Y4 when 2OE is low.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "18",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    -1.625
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "18",
   "name": "1Y1",
   "type": "tri_state",
   "description": "Bank 1 buffer output 1. 3-state, non-inverting output driven by 1A1 when 1OE is low; high-impedance when 1OE is high.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "19",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    -2.275
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "19",
   "name": "2OE",
   "type": "input",
   "description": "Active-low output enable for bank 2 (buffers 2A1-2A4 → 2Y1-2Y4). When low, bank 2 outputs pass the A input data. When high, bank 2 outputs are placed in the high-impedance state.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "20",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    2.8625,
    -2.925
   ],
   "rot": 0.0,
   "size": [
    1.475,
    0.4
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "20",
   "name": "VCC",
   "type": "power_in",
   "description": "Positive supply rail, 4.5 V to 5.5 V (recommended). Absolute max 7 V. Decouple locally to GND with a 0.1 µF ceramic capacitor.",
   "is_pin1": false,
   "source": {
    "geometry": "TSSOP-20_4.4x6.5mm_P0.65mm.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  }
 ]
}