component
74LVC244AD
Public Made by Adomby adom
Nexperia Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "74lvc244ad",
"title": "74LVC244AD",
"brief": "Nexperia Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
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"logic",
"74lvc244ad",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "74LVC244AD",
"manufacturer": "Nexperia",
"package": "SOIC-20-300mil",
"pin_count": 20,
"category": "Logic",
"subcategory": "Buffers, Drivers, Receivers, Transceivers",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907915410853888",
"parts": {
"symbol": "74lvc244ad.kicad_sym",
"footprint": "74lvc244ad.kicad_mod",
"model_3d": "74lvc244ad-hero.glb",
"model_3d_plain": "74lvc244ad.glb",
"model_3d_step": "74lvc244ad-etched.step",
"model_3d_step_plain": "74lvc244ad.step",
"lbr": "74lvc244ad.lbr"
},
"distributor_links": {
"lcsc": "C548504",
"mouser": "771-74LVC244AD"
},
"distributor_check": {
"checked_at": "2026-10-10T00:57:47Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": "771-74LVC244AD",
"status": "found",
"lifecycle": "End of Life"
}
},
"pins": [
{
"number": "1",
"name": "1OE",
"type": "input",
"description": "Output enable input, active low; a HIGH level places outputs 1Y0 to 1Y3 in the high-impedance OFF-state."
},
{
"number": "2",
"name": "1A0",
"type": "input",
"description": "Data input 1A0 of the first 4-bit buffer; Schmitt-trigger input, overvoltage tolerant to 5.5 V."
},
{
"number": "3",
"name": "2Y0",
"type": "tri_state",
"description": "Data output 2Y0 of the second 4-bit buffer; 3-state output, high-impedance when 2OE is HIGH."
},
{
"number": "4",
"name": "1A1",
"type": "input",
"description": "Data input 1A1 of the first 4-bit buffer; Schmitt-trigger input, overvoltage tolerant to 5.5 V."
},
{
"number": "5",
"name": "2Y1",
"type": "tri_state",
"description": "Data output 2Y1 of the second 4-bit buffer; 3-state output, high-impedance when 2OE is HIGH."
},
{
"number": "6",
"name": "1A2",
"type": "input",
"description": "Data input 1A2 of the first 4-bit buffer; Schmitt-trigger input, overvoltage tolerant to 5.5 V."
},
{
"number": "7",
"name": "2Y2",
"type": "tri_state",
"description": "Data output 2Y2 of the second 4-bit buffer; 3-state output, high-impedance when 2OE is HIGH."
},
{
"number": "8",
"name": "1A3",
"type": "input",
"description": "Data input 1A3 of the first 4-bit buffer; Schmitt-trigger input, overvoltage tolerant to 5.5 V."
},
{
"number": "9",
"name": "2Y3",
"type": "tri_state",
"description": "Data output 2Y3 of the second 4-bit buffer; 3-state output, high-impedance when 2OE is HIGH."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground (0 V)."
},
{
"number": "11",
"name": "2A3",
"type": "input",
"description": "Data input 2A3 of the second 4-bit buffer; Schmitt-trigger input, overvoltage tolerant to 5.5 V."
},
{
"number": "12",
"name": "1Y3",
"type": "tri_state",
"description": "Data output 1Y3 of the first 4-bit buffer; 3-state output, high-impedance when 1OE is HIGH."
},
{
"number": "13",
"name": "2A2",
"type": "input",
"description": "Data input 2A2 of the second 4-bit buffer; Schmitt-trigger input, overvoltage tolerant to 5.5 V."
},
{
"number": "14",
"name": "1Y2",
"type": "tri_state",
"description": "Data output 1Y2 of the first 4-bit buffer; 3-state output, high-impedance when 1OE is HIGH."
},
{
"number": "15",
"name": "2A1",
"type": "input",
"description": "Data input 2A1 of the second 4-bit buffer; Schmitt-trigger input, overvoltage tolerant to 5.5 V."
},
{
"number": "16",
"name": "1Y1",
"type": "tri_state",
"description": "Data output 1Y1 of the first 4-bit buffer; 3-state output, high-impedance when 1OE is HIGH."
},
{
"number": "17",
"name": "2A0",
"type": "input",
"description": "Data input 2A0 of the second 4-bit buffer; Schmitt-trigger input, overvoltage tolerant to 5.5 V."
},
{
"number": "18",
"name": "1Y0",
"type": "tri_state",
"description": "Data output 1Y0 of the first 4-bit buffer; 3-state output, high-impedance when 1OE is HIGH."
},
{
"number": "19",
"name": "2OE",
"type": "input",
"description": "Output enable input, active low; a HIGH level places outputs 2Y0 to 2Y3 in the high-impedance OFF-state."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage; 1.65 V to 3.6 V recommended, functional down to 1.2 V."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The SO20 pin-to-position mapping was reconstructed from the extracted pinning diagram text on page 3; Output types are set to tri_state because the datasheet describes the Y outputs as 3-state; the data"
],
"pages_sent": 16,
"cost_usd": 0.0941,
"at": "2026-10-10T00:55:25"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907915410853888",
"pages": 16,
"sha256": "4195257c91082e34",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"file": "74lvc244ad.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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12.8,
2.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
"checked": "2026-10-10",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "74lvc244ad-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "1d14581460f5623d33f2604d9a49b4b8f8ee1ce4bba852d19d95e86d5c7a2e70",
"checked": "2026-10-10",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Nexperia",
"Package": "SOIC-20-300mil",
"Category": "Logic",
"Pins": "20"
}
},
"variants": [],
"sections": [
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"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
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],
"discovery_pitch": "74LVC244AD (Nexperia) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
},
"files": [
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"README.md",
"74lvc244ad.kicad_sym",
"74lvc244ad.kicad_mod",
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"74lvc244ad.step",
"74lvc244ad.lbr",
"docs/hero.png",
"docs/74lvc244ad-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"74lvc244ad-hero.glb",
"74lvc244ad-hero.overlay.json"
],
"visibility": {
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}
}