component
74HCT245PW
Public Made by Adomby adom
Nexperia Buffer/Driver/Transceiver, TSSOP-20. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
2 files changed
+627−1
package.json+2−1@@ -24,6 +24,7 @@ "docs/hero.png", "docs/74hct245pw-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ] }
pads.jsonadded+625@@ -0,0 +1,625 @@+{+ "schema": "adom.pads/1",+ "slug": "74hct245pw",+ "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,+ "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": "DIR",+ "type": "input",+ "description": "Direction control input. LOW = data flows B→A (B ports are inputs, A ports are outputs); HIGH = data flows A→B (A ports are inputs, B ports are outputs). TTL-level input.",+ "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": "A0",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 0 on the A-side bus. Acts as input or 3-state output depending on DIR and OE.",+ "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": "A1",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 1 on the A-side bus.",+ "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": "A2",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 2 on the A-side bus.",+ "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": "A3",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 3 on the A-side bus.",+ "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": "A4",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 4 on the A-side bus.",+ "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": "A5",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 5 on the A-side bus.",+ "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": "A6",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 6 on the A-side bus.",+ "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": "A7",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 7 on the A-side bus.",+ "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). Connect to system ground.",+ "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": "B7",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 7 on the B-side bus.",+ "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": "B6",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 6 on the B-side bus.",+ "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": "B5",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 5 on the B-side bus.",+ "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": "B4",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 4 on the B-side bus.",+ "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": "B3",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 3 on the B-side bus.",+ "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": "B2",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 2 on the B-side bus.",+ "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": "B1",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 1 on the B-side bus.",+ "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": "B0",+ "type": "bidirectional",+ "description": "Bidirectional data I/O bit 0 on the B-side bus.",+ "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": "OE",+ "type": "input",+ "description": "Output enable, active LOW. LOW enables the transceiver in the direction set by DIR; HIGH places both A and B ports in high-impedance (3-state) OFF condition.",+ "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 voltage. Recommended operating range 4.5 V to 5.5 V for 74HCT245 (TTL-input variant); absolute max 7 V. Decouple with a 100 nF ceramic capacitor to GND 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"+ }+ }+ ]+}