component
TC74LCX541F
Public Made by Adomby adom
TOSHIBA Buffers, Drivers, Receivers, Transceivers, SOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "tc74lcx541f",
"version": "0.1.0",
"type": "component",
"description": "TOSHIBA Buffers, Drivers, Receivers, Transceivers, SOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"logic",
"tc74lcx541f",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"tc74lcx541f.kicad_sym",
"tc74lcx541f.kicad_mod",
"tc74lcx541f.glb",
"tc74lcx541f.step",
"tc74lcx541f.lbr",
"docs/hero.png",
"docs/tc74lcx541f-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"tc74lcx541f-hero.glb",
"tc74lcx541f-hero.overlay.json",
"tc74lcx541f-etched.glb"
],
"component": {
"mpn": "TC74LCX541F",
"manufacturer": "TOSHIBA",
"package": "SOP-20",
"pin_count": 20,
"category": "Logic",
"subcategory": "Buffers, Drivers, Receivers, Transceivers",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603063407029870592",
"parts": {
"symbol": "tc74lcx541f.kicad_sym",
"footprint": "tc74lcx541f.kicad_mod",
"model_3d": "tc74lcx541f-hero.glb",
"model_3d_plain": "tc74lcx541f-etched.glb",
"model_3d_step": "tc74lcx541f-etched.step",
"model_3d_step_plain": "tc74lcx541f.step",
"lbr": "tc74lcx541f.lbr"
},
"distributor_links": {
"lcsc": "C5349738",
"mouser": "757-TC74LCX541F"
},
"distributor_check": {
"checked_at": "2026-10-19T10:08:33Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": "757-TC74LCX541F",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "OE1",
"type": "input",
"description": "Active-low output enable 1; when OE1 is high the outputs go to high impedance (truth table: OE1 or OE2 high gives Z)."
},
{
"number": "2",
"name": "A1",
"type": "input",
"description": "Data input 1 of the non-inverting 3-state buffer; input operating range is 0 to 5.5 V, so it tolerates 5 V signals."
},
{
"number": "3",
"name": "A2",
"type": "input",
"description": "Data input 2 of the non-inverting 3-state buffer; input operating range is 0 to 5.5 V, so it tolerates 5 V signals."
},
{
"number": "4",
"name": "A3",
"type": "input",
"description": "Data input 3 of the non-inverting 3-state buffer; input operating range is 0 to 5.5 V, so it tolerates 5 V signals."
},
{
"number": "5",
"name": "A4",
"type": "input",
"description": "Data input 4 of the non-inverting 3-state buffer; input operating range is 0 to 5.5 V, so it tolerates 5 V signals."
},
{
"number": "6",
"name": "A5",
"type": "input",
"description": "Data input 5 of the non-inverting 3-state buffer; input operating range is 0 to 5.5 V, so it tolerates 5 V signals."
},
{
"number": "7",
"name": "A6",
"type": "input",
"description": "Data input 6 of the non-inverting 3-state buffer; input operating range is 0 to 5.5 V, so it tolerates 5 V signals."
},
{
"number": "8",
"name": "A7",
"type": "input",
"description": "Data input 7 of the non-inverting 3-state buffer; input operating range is 0 to 5.5 V, so it tolerates 5 V signals."
},
{
"number": "9",
"name": "A8",
"type": "input",
"description": "Data input 8 of the non-inverting 3-state buffer; input operating range is 0 to 5.5 V, so it tolerates 5 V signals."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the device."
},
{
"number": "11",
"name": "Y8",
"type": "tri_state",
"description": "Buffered 3-state output 8; high impedance when either output enable is high, drives 24 mA min at VCC 3.0 V."
},
{
"number": "12",
"name": "Y7",
"type": "tri_state",
"description": "Buffered 3-state output 7; high impedance when either output enable is high, drives 24 mA min at VCC 3.0 V."
},
{
"number": "13",
"name": "Y6",
"type": "tri_state",
"description": "Buffered 3-state output 6; high impedance when either output enable is high, drives 24 mA min at VCC 3.0 V."
},
{
"number": "14",
"name": "Y5",
"type": "tri_state",
"description": "Buffered 3-state output 5; high impedance when either output enable is high, drives 24 mA min at VCC 3.0 V."
},
{
"number": "15",
"name": "Y4",
"type": "tri_state",
"description": "Buffered 3-state output 4; high impedance when either output enable is high, drives 24 mA min at VCC 3.0 V."
},
{
"number": "16",
"name": "Y3",
"type": "tri_state",
"description": "Buffered 3-state output 3; high impedance when either output enable is high, drives 24 mA min at VCC 3.0 V."
},
{
"number": "17",
"name": "Y2",
"type": "tri_state",
"description": "Buffered 3-state output 2; high impedance when either output enable is high, drives 24 mA min at VCC 3.0 V."
},
{
"number": "18",
"name": "Y1",
"type": "tri_state",
"description": "Buffered 3-state output 1; high impedance when either output enable is high, drives 24 mA min at VCC 3.0 V."
},
{
"number": "19",
"name": "OE2",
"type": "input",
"description": "Active-low output enable 2; when OE2 is high the outputs go to high impedance (truth table: OE1 or OE2 high gives Z)."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Positive supply; operating range 1.65 to 3.6 V, absolute maximum 7.0 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 pin assignment drawing text is garbled; OE1 = pin 1 and OE2 = pin 19 are inferred from the IEC l; Pin-to-signal mapping (A1-A8 on pins 2-9, Y1-Y8 on pins 18-11) was reconstructed from the scrambled ; The datasheet covers both SOP20 (TC74LCX541F) and VSSOP20 (TC74LCX541FK); this pinout is for the SOP"
],
"pages_sent": 10,
"cost_usd": 0.0647,
"at": "2026-10-19T10:04:10"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603063407029870592",
"pages": 10,
"sha256": "4c14b8c1c8aa52ed",
"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": [
{
"file": "tc74lcx541f.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
10.26,
12.8,
2.65
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "3857fee0b4bb7c438aedeed53c0961e902b541fc550d23a19a94fcfd484dde18",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "tc74lcx541f-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
10.26,
12.8,
2.65
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "c0ceab2ec361f1c5f8127f4e9500d84399586342b37fab2eec6c8f158c3ee617",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}