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SN74AXC4T774QPWRQ1
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Texas Instruments Translators, Level Shifters, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# SN74AXC4T774QPWRQ1++**Texas Instruments** · Translators, Level Shifters · TSSOP-16++SN74AXC4T774QPWRQ1 from Texas Instruments, in a TSSOP-16. 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 | DIR1 | input | Direction control input for transceiver 1, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA. |+| 2 | DIR2 | input | Direction control input for transceiver 2, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA. |+| 3 | A1 | bidirectional | Bidirectional I/O port A1 referenced to VCCA, supports 0.65V to 3.6V logic levels. |+| 4 | A2 | bidirectional | Bidirectional I/O port A2 referenced to VCCA, supports 0.65V to 3.6V logic levels. |+| 5 | A3 | bidirectional | Bidirectional I/O port A3 referenced to VCCA, supports 0.65V to 3.6V logic levels. |+| 6 | A4 | bidirectional | Bidirectional I/O port A4 referenced to VCCA, supports 0.65V to 3.6V logic levels. |+| 7 | DIR3 | input | Direction control input for transceiver 3, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA. |+| 8 | DIR4 | input | Direction control input for transceiver 4, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA. |+| 9 | OE | input | Tri-state output enable input, when high disables all outputs to high-impedance, when low enables outputs, referenced to VCCA. |+| 10 | GND | power_in | Ground reference. |+| 11 | B4 | bidirectional | Bidirectional I/O port B4 referenced to VCCB, supports 0.65V to 3.6V logic levels. |+| 12 | B3 | bidirectional | Bidirectional I/O port B3 referenced to VCCB, supports 0.65V to 3.6V logic levels. |+| 13 | B2 | bidirectional | Bidirectional I/O port B2 referenced to VCCB, supports 0.65V to 3.6V logic levels. |+| 14 | B1 | bidirectional | Bidirectional I/O port B1 referenced to VCCB, supports 0.65V to 3.6V logic levels. |+| 15 | VCCB | power_in | B port power supply, operating range 0.65V to 3.6V. |+| 16 | VCCA | power_in | A port power supply, operating range 0.65V to 3.6V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74AXC4T774QPWRQ1`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `sn74axc4t774qpwrq1-etched.step` / `sn74axc4t774qpwrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74axc4t774qpwrq1.step` / `sn74axc4t774qpwrq1.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/sn74axc4t774-q1) (43 pp, sha256 `463af8c2d06fa5a8`, retrieved 2026-10-05, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/sn74axc4t774qpwrq1-datasheet.pdf)
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"model_3d": "sn74axc4t774qpwrq1-hero.glb",+ "model_3d_plain": "sn74axc4t774qpwrq1.glb",+ "model_3d_step": "sn74axc4t774qpwrq1-etched.step",+ "model_3d_step_plain": "sn74axc4t774qpwrq1.step",+ "lbr": "sn74axc4t774qpwrq1.lbr"+ },+ "distributor_links": {+ "lcsc": 2868086,+ "digikey": "296-SN74AXC4T774QPWRQ1TR-ND",+ "mouser": "595-74AXC4T774QPWRQ1"+ },+ "distributor_check": {+ "checked_at": "2026-10-05T19:13:29Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-SN74AXC4T774QPWRQ1TR-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-74AXC4T774QPWRQ1",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "DIR1",+ "type": "input",+ "description": "Direction control input for transceiver 1, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA."+ },+ {+ "number": "2",+ "name": "DIR2",+ "type": "input",+ "description": "Direction control input for transceiver 2, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA."+ },+ {+ "number": "3",+ "name": "A1",+ "type": "bidirectional",+ "description": "Bidirectional I/O port A1 referenced to VCCA, supports 0.65V to 3.6V logic levels."+ },+ {+ "number": "4",+ "name": "A2",+ "type": "bidirectional",+ "description": "Bidirectional I/O port A2 referenced to VCCA, supports 0.65V to 3.6V logic levels."+ },+ {+ "number": "5",+ "name": "A3",+ "type": "bidirectional",+ "description": "Bidirectional I/O port A3 referenced to VCCA, supports 0.65V to 3.6V logic levels."+ },+ {+ "number": "6",+ "name": "A4",+ "type": "bidirectional",+ "description": "Bidirectional I/O port A4 referenced to VCCA, supports 0.65V to 3.6V logic levels."+ },+ {+ "number": "7",+ "name": "DIR3",+ "type": "input",+ "description": "Direction control input for transceiver 3, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA."+ },+ {+ "number": "8",+ "name": "DIR4",+ "type": "input",+ "description": "Direction control input for transceiver 4, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA."+ },+ {+ "number": "9",+ "name": "OE",+ "type": "input",+ "description": "Tri-state output enable input, when high disables all outputs to high-impedance, when low enables outputs, referenced to VCCA."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference."+ },+ {+ "number": "11",+ "name": "B4",+ "type": "bidirectional",+ "description": "Bidirectional I/O port B4 referenced to VCCB, supports 0.65V to 3.6V logic levels."+ },+ {+ "number": "12",+ "name": "B3",+ "type": "bidirectional",+ "description": "Bidirectional I/O port B3 referenced to VCCB, supports 0.65V to 3.6V logic levels."+ },+ {+ "number": "13",+ "name": "B2",+ "type": "bidirectional",+ "description": "Bidirectional I/O port B2 referenced to VCCB, supports 0.65V to 3.6V logic levels."+ },+ {+ "number": "14",+ "name": "B1",+ "type": "bidirectional",+ "description": "Bidirectional I/O port B1 referenced to VCCB, supports 0.65V to 3.6V logic levels."+ },+ {+ "number": "15",+ "name": "VCCB",+ "type": "power_in",+ "description": "B port power supply, operating range 0.65V to 3.6V."+ },+ {+ "number": "16",+ "name": "VCCA",+ "type": "power_in",+ "description": "A port power supply, operating range 0.65V to 3.6V."+ }+ ],+ "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": 19,+ "cost_usd": 0.1725,+ "at": "2026-10-05T19:13:13"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74axc4t774-q1",+ "pages": 43,+ "sha256": "463af8c2d06fa5a8",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}