component
74VHCT541BQ
Public Made by Adomby adom
Nexperia Buffers, Drivers, Receivers, Transceivers, DHVQFN-20-EP(2.5x4.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "74vhct541bq",
"version": "0.1.0",
"type": "component",
"description": "Nexperia Buffers, Drivers, Receivers, Transceivers, DHVQFN-20-EP(2.5x4.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"logic",
"74vhct541bq",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"74vhct541bq.kicad_sym",
"74vhct541bq.kicad_mod",
"74vhct541bq.glb",
"74vhct541bq.step",
"74vhct541bq.lbr",
"docs/hero.png",
"docs/74vhct541bq-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"74vhct541bq-hero.glb",
"74vhct541bq-hero.overlay.json",
"74vhct541bq-etched.glb"
],
"component": {
"mpn": "74VHCT541BQ",
"manufacturer": "Nexperia",
"package": "DHVQFN-20-EP(2.5x4.5)",
"pin_count": 21,
"category": "Logic",
"subcategory": "Buffers, Drivers, Receivers, Transceivers",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913809502687232",
"parts": {
"symbol": "74vhct541bq.kicad_sym",
"footprint": "74vhct541bq.kicad_mod",
"model_3d": "74vhct541bq-hero.glb",
"model_3d_plain": "74vhct541bq-etched.glb",
"model_3d_step": "74vhct541bq-etched.step",
"model_3d_step_plain": "74vhct541bq.step",
"lbr": "74vhct541bq.lbr"
},
"distributor_links": {
"lcsc": "C549179"
},
"distributor_check": {
"checked_at": "2026-10-18T01:54:31Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "OE0",
"type": "input",
"description": "Active-LOW output enable; outputs Y0 to Y7 are enabled only when OE0 and OE1 are both LOW, and a HIGH on OE0 forces them to high-impedance (Z)."
},
{
"number": "2",
"name": "A0",
"type": "input",
"description": "Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V."
},
{
"number": "3",
"name": "A1",
"type": "input",
"description": "Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V."
},
{
"number": "4",
"name": "A2",
"type": "input",
"description": "Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V."
},
{
"number": "5",
"name": "A3",
"type": "input",
"description": "Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V."
},
{
"number": "6",
"name": "A4",
"type": "input",
"description": "Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V."
},
{
"number": "7",
"name": "A5",
"type": "input",
"description": "Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V."
},
{
"number": "8",
"name": "A6",
"type": "input",
"description": "Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V."
},
{
"number": "9",
"name": "A7",
"type": "input",
"description": "Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground (0 V) reference for all voltages; ground current is limited to -75 mA (Table 4). The exposed thermal pad is not this pin and is not numbered in the datasheet."
},
{
"number": "11",
"name": "Y7",
"type": "tri_state",
"description": "3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA."
},
{
"number": "12",
"name": "Y6",
"type": "tri_state",
"description": "3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA."
},
{
"number": "13",
"name": "Y5",
"type": "tri_state",
"description": "3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA."
},
{
"number": "14",
"name": "Y4",
"type": "tri_state",
"description": "3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA."
},
{
"number": "15",
"name": "Y3",
"type": "tri_state",
"description": "3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA."
},
{
"number": "16",
"name": "Y2",
"type": "tri_state",
"description": "3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA."
},
{
"number": "17",
"name": "Y1",
"type": "tri_state",
"description": "3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA."
},
{
"number": "18",
"name": "Y0",
"type": "tri_state",
"description": "3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA."
},
{
"number": "19",
"name": "OE1",
"type": "input",
"description": "Active-LOW output enable; outputs Y0 to Y7 are enabled only when OE0 and OE1 are both LOW, and a HIGH on OE1 forces them to high-impedance (Z)."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage; 2.0 V to 5.5 V for 74VHC541 and 4.5 V to 5.5 V for 74VHCT541 (Table 5)."
},
{
"number": "21",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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 DHVQFN20 has an exposed centre thermal pad, labelled GND(1) in the BQ pinning figure. It has no ; The BQ pin map is shown only as a garbled figure. Pin numbers and names were taken from Table 2 (Pin",
"exposed pad 21 added from the footprint"
],
"pages_sent": 16,
"cost_usd": 0.0774,
"at": "2026-10-18T01:51:01"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913809502687232",
"pages": 16,
"sha256": "996dee2efa342abf",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "74vhct541bq.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.52,
4.52,
0.9
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "6ad04ea1baf0a3e652c0611435881638cb862dfeca64a82995ac22f8c4b3e157",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "74vhct541bq-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.52,
4.52,
0.9
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "ae400d273ca39e56a8a2c66f7f25c29b9e7fe690c17b10fcfb38bf642f8882d8",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}