component
74HC138M
Public Made by Adomby adom
HGSEMI Signal Switches / Encoders & Decoders / Multiplexers, SOP-16. 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
+507−1
package.json+2−1@@ -24,6 +24,7 @@ "docs/hero.png", "docs/74hc138m-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ] }
pads.jsonadded+505@@ -0,0 +1,505 @@+{+ "schema": "adom.pads/1",+ "slug": "74hc138m",+ "footprint": "SOIC-16_3.9x9.9mm_P1.27mm",+ "generated_from": {+ "footprint": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c",+ "pins": "page.json:component.pins",+ "overrides": null+ },+ "pin1": {+ "pad": "1",+ "at": [+ -2.475,+ -4.445+ ],+ "corner": "top-left",+ "source": "silk-marker",+ "derived_from": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c"+ },+ "pad_count": 16,+ "paste_apertures": 0,+ "issues": [],+ "pads": [+ {+ "pad": "1",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ -4.445+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "1",+ "name": "A",+ "type": "input",+ "description": "Address select input bit 0 (LSB). Binary-weighted select input combined with B and C to choose which of Y0-Y7 is asserted low.",+ "is_pin1": true,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "2",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ -3.175+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "2",+ "name": "B",+ "type": "input",+ "description": "Address select input bit 1. Binary-weighted select input combined with A and C to choose the active output.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "3",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ -1.905+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "3",+ "name": "C",+ "type": "input",+ "description": "Address select input bit 2 (MSB). Binary-weighted select input combined with A and B to choose the active output.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "4",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ -0.635+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "4",+ "name": "~{G2A}",+ "type": "input",+ "description": "Active-low enable input. Both G2A and G2B must be low (and G1 high) for any output to be selected; otherwise all outputs are held high.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "5",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ 0.635+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "5",+ "name": "~{G2B}",+ "type": "input",+ "description": "Active-low enable input. Both G2A and G2B must be low (and G1 high) for any output to be selected; otherwise all outputs are held high.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "6",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ 1.905+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "6",+ "name": "G1",+ "type": "input",+ "description": "Active-high enable input. Must be high (with G2A and G2B low) to enable the decoder outputs.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "7",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ 3.175+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "7",+ "name": "Y7",+ "type": "output",+ "description": "Decoded output 7 (active-low). Driven low when enabled and CBA = 111; otherwise high. Drive capability 5.2 mA at VCC=6V.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "8",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ 4.445+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground / negative supply reference (0 V).",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "9",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ 4.445+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "9",+ "name": "Y6",+ "type": "output",+ "description": "Decoded output 6 (active-low). Driven low when enabled and CBA = 110; otherwise high.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "10",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ 3.175+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "10",+ "name": "Y5",+ "type": "output",+ "description": "Decoded output 5 (active-low). Driven low when enabled and CBA = 101; otherwise high.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "11",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ 1.905+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "11",+ "name": "Y4",+ "type": "output",+ "description": "Decoded output 4 (active-low). Driven low when enabled and CBA = 100; otherwise high.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "12",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ 0.635+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "12",+ "name": "Y3",+ "type": "output",+ "description": "Decoded output 3 (active-low). Driven low when enabled and CBA = 011; otherwise high.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "13",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ -0.635+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "13",+ "name": "Y2",+ "type": "output",+ "description": "Decoded output 2 (active-low). Driven low when enabled and CBA = 010; otherwise high.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "14",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ -1.905+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "14",+ "name": "Y1",+ "type": "output",+ "description": "Decoded output 1 (active-low). Driven low when enabled and CBA = 001; otherwise high.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "15",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ -3.175+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "15",+ "name": "Y0",+ "type": "output",+ "description": "Decoded output 0 (active-low). Driven low when enabled and CBA = 000; otherwise high.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "16",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ -4.445+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply input. Operating range 2.0 V to 6.0 V (absolute max 6.5 V). Bypass with a 100 nF ceramic close to the pin.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ }+ ]+}