component
CY74FCT543ATQCT
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-24-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"title": "CY74FCT543ATQCT",
"brief": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-24-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"manufacturer": "Texas Instruments",
"package": "SSOP-24-150mil",
"pin_count": 24,
"category": "Logic",
"subcategory": "Buffers, Drivers, Receivers, Transceivers",
"datasheet": "https://www.ti.com/cn/lit/gpn/cy74fct543t",
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"lcsc": "C2866088",
"digikey": "296-14579-2-ND",
"mouser": "595-CY74FCT543ATQCT"
},
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"source": "Component Ocean /api/assign-pns",
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"status": "found",
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"pn": "595-CY74FCT543ATQCT",
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{
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"name": "LEBA",
"type": "input",
"description": "B-to-A latch-enable input (active low); a low level makes the B-to-A latches transparent and a low-to-high transition stores the data."
},
{
"number": "2",
"name": "OEBA",
"type": "input",
"description": "B-to-A output-enable input (active low); with CEBA low it enables the 3-state A outputs."
},
{
"number": "3",
"name": "A0",
"type": "bidirectional",
"description": "A-to-B data input or B-to-A 3-state output, bit 0."
},
{
"number": "4",
"name": "A1",
"type": "bidirectional",
"description": "A-to-B data input or B-to-A 3-state output, bit 1."
},
{
"number": "5",
"name": "A2",
"type": "bidirectional",
"description": "A-to-B data input or B-to-A 3-state output, bit 2."
},
{
"number": "6",
"name": "A3",
"type": "bidirectional",
"description": "A-to-B data input or B-to-A 3-state output, bit 3."
},
{
"number": "7",
"name": "A4",
"type": "bidirectional",
"description": "A-to-B data input or B-to-A 3-state output, bit 4."
},
{
"number": "8",
"name": "A5",
"type": "bidirectional",
"description": "A-to-B data input or B-to-A 3-state output, bit 5."
},
{
"number": "9",
"name": "A6",
"type": "bidirectional",
"description": "A-to-B data input or B-to-A 3-state output, bit 6."
},
{
"number": "10",
"name": "A7",
"type": "bidirectional",
"description": "A-to-B data input or B-to-A 3-state output, bit 7."
},
{
"number": "11",
"name": "CEAB",
"type": "input",
"description": "A-to-B enable input (active low); must be low to enter data from A or to take data from B."
},
{
"number": "12",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "13",
"name": "OEAB",
"type": "input",
"description": "A-to-B output-enable input (active low); with CEAB low it enables the 3-state B outputs."
},
{
"number": "14",
"name": "LEAB",
"type": "input",
"description": "A-to-B latch-enable input (active low); a low level makes the A-to-B latches transparent and a low-to-high transition stores the data."
},
{
"number": "15",
"name": "B7",
"type": "bidirectional",
"description": "B-to-A data input or A-to-B 3-state output, bit 7."
},
{
"number": "16",
"name": "B6",
"type": "bidirectional",
"description": "B-to-A data input or A-to-B 3-state output, bit 6."
},
{
"number": "17",
"name": "B5",
"type": "bidirectional",
"description": "B-to-A data input or A-to-B 3-state output, bit 5."
},
{
"number": "18",
"name": "B4",
"type": "bidirectional",
"description": "B-to-A data input or A-to-B 3-state output, bit 4."
},
{
"number": "19",
"name": "B3",
"type": "bidirectional",
"description": "B-to-A data input or A-to-B 3-state output, bit 3."
},
{
"number": "20",
"name": "B2",
"type": "bidirectional",
"description": "B-to-A data input or A-to-B 3-state output, bit 2."
},
{
"number": "21",
"name": "B1",
"type": "bidirectional",
"description": "B-to-A data input or A-to-B 3-state output, bit 1."
},
{
"number": "22",
"name": "B0",
"type": "bidirectional",
"description": "B-to-A data input or A-to-B 3-state output, bit 0."
},
{
"number": "23",
"name": "CEBA",
"type": "input",
"description": "B-to-A enable input (active low); must be low to enter data from B or to take data from A."
},
{
"number": "24",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage; recommended 4.75 V to 5.25 V for CY74FCT543T."
}
],
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"extractor": "extract_pins 0.3",
"factory_chain": {
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"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-4-5-20251001",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [],
"pages_sent": 13,
"cost_usd": 0.1814,
"at": "2026-10-07T07:22:57"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/cy74fct543t",
"pages": 13,
"sha256": "1cca59eba0ac2344",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 24,
"cites_pages": true,
"refuses_to_fabricate": true
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"sha256": "77dd0a1fc7e70e9eda1bfde9dde937dc6e391803cff9978790523c850c85a21d",
"checked": "2026-10-07",
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{
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"metadata": {
"specs": {
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"Package": "SSOP-24-150mil",
"Category": "Logic",
"Pins": "24"
}
},
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"author": {
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"email": "[email protected]"
},
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