SN74HC574PW

{
 "schema": "adom.pads/1",
 "slug": "sn74hc574pw",
 "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": "/OE",
   "type": "input",
   "description": "3-state output enable, active low. When /OE = L the Q outputs are driven from the internal latch; when /OE = H all Q outputs enter high-impedance (Z). Does not affect the state of the internal latches.",
   "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": "D0",
   "type": "input",
   "description": "Data input bit 0. Latched into internal flip-flop FF1 on the rising edge of CP; setup/hold timing per 3.3 electrical characteristics.",
   "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": "D1",
   "type": "input",
   "description": "Data input bit 1. Latched into internal flip-flop FF2 on the rising edge of CP.",
   "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": "D2",
   "type": "input",
   "description": "Data input bit 2. Latched into internal flip-flop FF3 on the rising edge of CP.",
   "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": "D3",
   "type": "input",
   "description": "Data input bit 3. Latched into internal flip-flop FF4 on the rising edge of CP.",
   "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": "D4",
   "type": "input",
   "description": "Data input bit 4. Latched into internal flip-flop FF5 on the rising edge of CP.",
   "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": "D5",
   "type": "input",
   "description": "Data input bit 5. Latched into internal flip-flop FF6 on the rising edge of CP.",
   "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": "D6",
   "type": "input",
   "description": "Data input bit 6. Latched into internal flip-flop FF7 on the rising edge of CP.",
   "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": "D7",
   "type": "input",
   "description": "Data input bit 7. Latched into internal flip-flop FF8 on the rising edge of CP.",
   "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": "Ground reference (0 V). Return path for VCC.",
   "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": "CP",
   "type": "input",
   "description": "Clock input, positive edge-triggered. All eight Dn inputs are transferred to the internal latches on the L->H transition of CP.",
   "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": "Q7",
   "type": "tri_state",
   "description": "3-state flip-flop output bit 7 (from FF8). Driven when /OE = L; Hi-Z when /OE = H.",
   "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": "Q6",
   "type": "tri_state",
   "description": "3-state flip-flop output bit 6 (from FF7). Driven when /OE = L; Hi-Z when /OE = H.",
   "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": "Q5",
   "type": "tri_state",
   "description": "3-state flip-flop output bit 5 (from FF6). Driven when /OE = L; Hi-Z when /OE = H.",
   "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": "Q4",
   "type": "tri_state",
   "description": "3-state flip-flop output bit 4 (from FF5). Driven when /OE = L; Hi-Z when /OE = H.",
   "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": "Q3",
   "type": "tri_state",
   "description": "3-state flip-flop output bit 3 (from FF4). Driven when /OE = L; Hi-Z when /OE = H.",
   "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": "Q2",
   "type": "tri_state",
   "description": "3-state flip-flop output bit 2 (from FF3). Driven when /OE = L; Hi-Z when /OE = H.",
   "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": "Q1",
   "type": "tri_state",
   "description": "3-state flip-flop output bit 1 (from FF2). Driven when /OE = L; Hi-Z when /OE = H.",
   "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": "Q0",
   "type": "tri_state",
   "description": "3-state flip-flop output bit 0 (from FF1). Driven when /OE = L; Hi-Z when /OE = H.",
   "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. SN74HC574: 2.0-6.0 V (CMOS levels). SN74HCT574: 4.5-5.5 V (TTL-compatible input levels). Decouple to GND with 0.1 uF close to the pin.",
   "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"
   }
  }
 ]
}