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CY74FCT543ATSOC
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+60@@ -0,0 +1,60 @@+# CY74FCT543ATSOC++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SOIC-24++CY74FCT543ATSOC from Texas Instruments, in a SOIC-24. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | LEBA | input | B-to-A latch-enable input (active low); a low makes the B-to-A latches transparent and a low-to-high transition puts them in storage mode. |+| 2 | OEBA | input | B-to-A output-enable input (active low) that enables the 3-state A outputs. |+| 3 | A0 | bidirectional | A-to-B data input or B-to-A 3-state output, channel 0. |+| 4 | A1 | bidirectional | A-to-B data input or B-to-A 3-state output, channel 1. |+| 5 | A2 | bidirectional | A-to-B data input or B-to-A 3-state output, channel 2. |+| 6 | A3 | bidirectional | A-to-B data input or B-to-A 3-state output, channel 3. |+| 7 | A4 | bidirectional | A-to-B data input or B-to-A 3-state output, channel 4. |+| 8 | A5 | bidirectional | A-to-B data input or B-to-A 3-state output, channel 5. |+| 9 | A6 | bidirectional | A-to-B data input or B-to-A 3-state output, channel 6. |+| 10 | A7 | bidirectional | A-to-B data input or B-to-A 3-state output, channel 7. |+| 11 | CEAB | input | A-to-B enable input (active low); must be low to enter data from A or to take data from B. |+| 12 | GND | power_in | Ground. |+| 13 | OEAB | input | A-to-B output-enable input (active low) that enables the 3-state B outputs. |+| 14 | LEAB | input | A-to-B latch-enable input (active low); a low makes the A-to-B latches transparent and a low-to-high transition puts them in storage mode. |+| 15 | B7 | bidirectional | B-to-A data input or A-to-B 3-state output, channel 7. |+| 16 | B6 | bidirectional | B-to-A data input or A-to-B 3-state output, channel 6. |+| 17 | B5 | bidirectional | B-to-A data input or A-to-B 3-state output, channel 5. |+| 18 | B4 | bidirectional | B-to-A data input or A-to-B 3-state output, channel 4. |+| 19 | B3 | bidirectional | B-to-A data input or A-to-B 3-state output, channel 3. |+| 20 | B2 | bidirectional | B-to-A data input or A-to-B 3-state output, channel 2. |+| 21 | B1 | bidirectional | B-to-A data input or A-to-B 3-state output, channel 1. |+| 22 | B0 | bidirectional | B-to-A data input or A-to-B 3-state output, channel 0. |+| 23 | CEBA | input | B-to-A enable input (active low); must be low to enter data from B or to take data from A. |+| 24 | VCC | power_in | Supply voltage, 4.75 V to 5.25 V recommended for CY74FCT543T. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-24 |+| Category | Logic |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `CY74FCT543ATSOC`+- Footprint: `Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm`+- 3D model: SOIC-24 (KiCad packages3D, STEP)+- 3D model files: `cy74fct543atsoc-etched.step` / `cy74fct543atsoc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cy74fct543atsoc.step` / `cy74fct543atsoc.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/cy74fct543t) (13 pp, sha256 `1cca59eba0ac2344`, retrieved 2026-10-07, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/cy74fct543atsoc-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "cy74fct543atsoc",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "cy74fct543atsoc.kicad_sym",+ "cy74fct543atsoc.kicad_mod",+ "cy74fct543atsoc.glb",+ "cy74fct543atsoc.step",+ "cy74fct543atsoc.lbr",+ "docs/hero.png",+ "docs/cy74fct543atsoc-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "cy74fct543atsoc-hero.glb",+ "cy74fct543atsoc-hero.overlay.json"+ ],+ "component": {+ "mpn": "CY74FCT543ATSOC",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-24",+ "pin_count": 24,+ "category": "Logic",+ "subcategory": "Buffers, Drivers, Receivers, Transceivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/cy74fct543t",+ "parts": {+ "symbol": "cy74fct543atsoc.kicad_sym",+ "footprint": "cy74fct543atsoc.kicad_mod",+ "model_3d": "cy74fct543atsoc-hero.glb",+ "model_3d_plain": "cy74fct543atsoc.glb",+ "model_3d_step": "cy74fct543atsoc-etched.step",+ "model_3d_step_plain": "cy74fct543atsoc.step",+ "lbr": "cy74fct543atsoc.lbr"+ },+ "distributor_links": {+ "lcsc": "C2863309",+ "digikey": "2156-CY74FCT543ATSOC-ND",+ "mouser": "595-CY74FCT543ATSOC"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T02:22:14Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-CY74FCT543ATSOC-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-CY74FCT543ATSOC",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "LEBA",+ "type": "input",+ "description": "B-to-A latch-enable input (active low); a low makes the B-to-A latches transparent and a low-to-high transition puts them in storage mode."+ },+ {+ "number": "2",+ "name": "OEBA",+ "type": "input",+ "description": "B-to-A output-enable input (active low) that 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, channel 0."+ },+ {+ "number": "4",+ "name": "A1",+ "type": "bidirectional",+ "description": "A-to-B data input or B-to-A 3-state output, channel 1."+ },+ {+ "number": "5",+ "name": "A2",+ "type": "bidirectional",+ "description": "A-to-B data input or B-to-A 3-state output, channel 2."+ },+ {+ "number": "6",+ "name": "A3",+ "type": "bidirectional",+ "description": "A-to-B data input or B-to-A 3-state output, channel 3."+ },+ {+ "number": "7",+ "name": "A4",+ "type": "bidirectional",+ "description": "A-to-B data input or B-to-A 3-state output, channel 4."+ },+ {+ "number": "8",+ "name": "A5",+ "type": "bidirectional",+ "description": "A-to-B data input or B-to-A 3-state output, channel 5."+ },+ {+ "number": "9",+ "name": "A6",+ "type": "bidirectional",+ "description": "A-to-B data input or B-to-A 3-state output, channel 6."+ },+ {+ "number": "10",+ "name": "A7",+ "type": "bidirectional",+ "description": "A-to-B data input or B-to-A 3-state output, channel 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) that enables the 3-state B outputs."+ },+ {+ "number": "14",+ "name": "LEAB",+ "type": "input",+ "description": "A-to-B latch-enable input (active low); a low makes the A-to-B latches transparent and a low-to-high transition puts them in storage mode."+ },+ {+ "number": "15",+ "name": "B7",+ "type": "bidirectional",+ "description": "B-to-A data input or A-to-B 3-state output, channel 7."+ },+ {+ "number": "16",+ "name": "B6",+ "type": "bidirectional",+ "description": "B-to-A data input or A-to-B 3-state output, channel 6."+ },+ {+ "number": "17",+ "name": "B5",+ "type": "bidirectional",+ "description": "B-to-A data input or A-to-B 3-state output, channel 5."+ },+ {+ "number": "18",+ "name": "B4",+ "type": "bidirectional",+ "description": "B-to-A data input or A-to-B 3-state output, channel 4."+ },+ {+ "number": "19",+ "name": "B3",+ "type": "bidirectional",+ "description": "B-to-A data input or A-to-B 3-state output, channel 3."+ },+ {+ "number": "20",+ "name": "B2",+ "type": "bidirectional",+ "description": "B-to-A data input or A-to-B 3-state output, channel 2."+ },+ {+ "number": "21",+ "name": "B1",+ "type": "bidirectional",+ "description": "B-to-A data input or A-to-B 3-state output, channel 1."+ },+ {+ "number": "22",+ "name": "B0",+ "type": "bidirectional",+ "description": "B-to-A data input or A-to-B 3-state output, channel 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, 4.75 V to 5.25 V recommended for CY74FCT543T."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "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": 0.1561,+ "at": "2026-10-07T02:21:56"+ },+ "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": {+ "total": 24,+ "described": 24,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "cy74fct543atsoc.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 10.3,+ 15.4,+ 2.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "4b0d20f82f5b0124fecfe11c941274a3c865a30f7baee8b8fadd7df55972d4cd",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "cy74fct543atsoc-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 10.3,+ 15.4,+ 2.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "43687129817fb4e2fda0193516a86447cb17a6177b29fa0242f454e973bbafb9",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}