component
MC74LCX245DTR2G
Public Made by Adomby adom
onsemi Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "mc74lcx245dtr2g",
"version": "0.1.0",
"type": "component",
"description": "onsemi Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"logic",
"mc74lcx245dtr2g",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"README.md",
"mc74lcx245dtr2g.kicad_sym",
"mc74lcx245dtr2g.kicad_mod",
"mc74lcx245dtr2g.glb",
"mc74lcx245dtr2g.step",
"mc74lcx245dtr2g.lbr",
"docs/hero.png",
"docs/mc74lcx245dtr2g-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mc74lcx245dtr2g-hero.glb",
"mc74lcx245dtr2g-hero.overlay.json",
"mc74lcx245dtr2g-etched.glb"
],
"component": {
"mpn": "MC74LCX245DTR2G",
"manufacturer": "onsemi",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Logic",
"subcategory": "Buffers, Drivers, Receivers, Transceivers",
"datasheet": "https://www.onsemi.com/pdf/datasheet/mc74lcx245dtr2-d.pdf",
"parts": {
"symbol": "mc74lcx245dtr2g.kicad_sym",
"footprint": "mc74lcx245dtr2g.kicad_mod",
"model_3d": "mc74lcx245dtr2g-hero.glb",
"model_3d_plain": "mc74lcx245dtr2g-etched.glb",
"model_3d_step": "mc74lcx245dtr2g-etched.step",
"model_3d_step_plain": "mc74lcx245dtr2g.step",
"lbr": "mc74lcx245dtr2g.lbr"
},
"distributor_links": {
"lcsc": "C7583",
"digikey": "MC74LCX245DTR2GOSTR-ND",
"mouser": "863-MC74LCX245DTR2G"
},
"distributor_check": {
"checked_at": "2026-10-18T05:31:01Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "MC74LCX245DTR2GOSTR-ND",
"status": "found"
},
"mouser": {
"pn": "863-MC74LCX245DTR2G",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "T/R",
"type": "input",
"description": "Transmit/Receive input sets data direction: HIGH enables data from A ports to B ports, LOW enables data from B to A ports."
},
{
"number": "2",
"name": "A0",
"type": "bidirectional",
"description": "Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port."
},
{
"number": "3",
"name": "A1",
"type": "bidirectional",
"description": "Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port."
},
{
"number": "4",
"name": "A2",
"type": "bidirectional",
"description": "Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port."
},
{
"number": "5",
"name": "A3",
"type": "bidirectional",
"description": "Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port."
},
{
"number": "6",
"name": "A4",
"type": "bidirectional",
"description": "Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port."
},
{
"number": "7",
"name": "A5",
"type": "bidirectional",
"description": "Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port."
},
{
"number": "8",
"name": "A6",
"type": "bidirectional",
"description": "Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port."
},
{
"number": "9",
"name": "A7",
"type": "bidirectional",
"description": "Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin for the device."
},
{
"number": "11",
"name": "B7",
"type": "bidirectional",
"description": "Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port."
},
{
"number": "12",
"name": "B6",
"type": "bidirectional",
"description": "Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port."
},
{
"number": "13",
"name": "B5",
"type": "bidirectional",
"description": "Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port."
},
{
"number": "14",
"name": "B4",
"type": "bidirectional",
"description": "Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port."
},
{
"number": "15",
"name": "B3",
"type": "bidirectional",
"description": "Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port."
},
{
"number": "16",
"name": "B2",
"type": "bidirectional",
"description": "Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port."
},
{
"number": "17",
"name": "B1",
"type": "bidirectional",
"description": "Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port."
},
{
"number": "18",
"name": "B0",
"type": "bidirectional",
"description": "Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port."
},
{
"number": "19",
"name": "OE",
"type": "input",
"description": "Output Enable input; when HIGH it disables both A and B ports by placing them in a high-impedance (Z) state."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage pin, specified for 2.0 V to 5.5 V operation."
}
],
"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: Pin numbers were mapped from the text extraction of Figure 1 (Pinout, Top View), which is garbled; t; The datasheet text does not explicitly label which TSSOP-20 pin is GND (10) and which is VCC (20); t; VCC limits are given in the Recommended Operating Conditions table (page 3), not in the pinout figur"
],
"pages_sent": 9,
"cost_usd": 0.0591,
"at": "2026-10-18T05:25:08"
},
"datasheet": {
"url": "https://www.onsemi.com/pdf/datasheet/mc74lcx245dtr2-d.pdf",
"pages": 9,
"sha256": "99a0e56372c0f5a7",
"source_tier": "mfr"
},
"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"
},
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"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "mc74lcx245dtr2g-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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"sha256": "4ba044c026473a9d854fc901a8eadc84c1be89ef1e342db46183fd76dd6a113b",
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}
]
}
}