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CD74HC366QDRQ1
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Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-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 @@+# CD74HC366QDRQ1++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SOIC-16++CD74HC366QDRQ1 from Texas Instruments, in a SOIC-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 | OE1 | input | Active-low three-state output enable 1, NORed with OE2 to control all six gates; outputs are high-impedance when OE1 is high. |+| 2 | 1A | input | Buffer channel 1 data input; must not be left floating. |+| 3 | 1Y | output | Channel 1 three-state inverting output (1Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads. |+| 4 | 2A | input | Buffer channel 2 data input; must not be left floating. |+| 5 | 2Y | output | Channel 2 three-state inverting output (2Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads. |+| 6 | 3A | input | Buffer channel 3 data input; must not be left floating. |+| 7 | 3Y | output | Channel 3 three-state inverting output (3Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads. |+| 8 | GND | power_in | Ground pin. |+| 9 | 4Y | output | Channel 4 three-state inverting output (4Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads. |+| 10 | 4A | input | Buffer channel 4 data input; must not be left floating. |+| 11 | 5Y | output | Channel 5 three-state inverting output (5Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads. |+| 12 | 5A | input | Buffer channel 5 data input; must not be left floating. |+| 13 | 6Y | output | Channel 6 three-state inverting output (6Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads. |+| 14 | 6A | input | Buffer channel 6 data input; must not be left floating. |+| 15 | OE2 | input | Active-low three-state output enable 2, NORed with OE1 to control all six gates; outputs are high-impedance when OE2 is high. |+| 16 | VCC | power_in | Positive supply, 2 V to 6 V for HC types (absolute maximum 7 V); a 0.1-µF bypass capacitor is recommended close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `CD74HC366QDRQ1`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D, STEP)+- 3D model files: `cd74hc366qdrq1-etched.step` / `cd74hc366qdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd74hc366qdrq1.step` / `cd74hc366qdrq1.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/cd74hc366-q1) (18 pp, sha256 `e47d0281794c01ae`, 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-sonnet-5-5` (text+vision), consensus `claude-opus-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/cd74hc366qdrq1-datasheet.pdf)
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outputs are high-impedance when OE1 is high."+ },+ {+ "number": "2",+ "name": "1A",+ "type": "input",+ "description": "Buffer channel 1 data input; must not be left floating."+ },+ {+ "number": "3",+ "name": "1Y",+ "type": "output",+ "description": "Channel 1 three-state inverting output (1Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads."+ },+ {+ "number": "4",+ "name": "2A",+ "type": "input",+ "description": "Buffer channel 2 data input; must not be left floating."+ },+ {+ "number": "5",+ "name": "2Y",+ "type": "output",+ "description": "Channel 2 three-state inverting output (2Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads."+ },+ {+ "number": "6",+ "name": "3A",+ "type": "input",+ "description": "Buffer channel 3 data input; must not be left floating."+ },+ {+ "number": "7",+ "name": "3Y",+ "type": "output",+ "description": "Channel 3 three-state inverting output (3Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin."+ },+ {+ "number": "9",+ "name": "4Y",+ "type": "output",+ "description": "Channel 4 three-state inverting output (4Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads."+ },+ {+ "number": "10",+ "name": "4A",+ "type": "input",+ "description": "Buffer channel 4 data input; must not be left floating."+ },+ {+ "number": "11",+ "name": "5Y",+ "type": "output",+ "description": "Channel 5 three-state inverting output (5Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads."+ },+ {+ "number": "12",+ "name": "5A",+ "type": "input",+ "description": "Buffer channel 5 data input; must not be left floating."+ },+ {+ "number": "13",+ "name": "6Y",+ "type": "output",+ "description": "Channel 6 three-state inverting output (6Y̅ on HC366), high-current bus driver able to drive up to 15 LSTTL loads."+ },+ {+ "number": "14",+ "name": "6A",+ "type": "input",+ "description": "Buffer channel 6 data input; must not be left floating."+ },+ {+ "number": "15",+ "name": "OE2",+ "type": "input",+ "description": "Active-low three-state output enable 2, NORed with OE1 to control all six gates; outputs are high-impedance when OE2 is high."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply, 2 V to 6 V for HC types (absolute maximum 7 V); a 0.1-µF bypass capacitor is recommended close to the pin."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-sonnet-5-5",+ "primary_mode": "text+vision",+ "consensus_model": "claude-opus-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 18,+ "cost_usd": 0.3823,+ "at": "2026-10-05T22:26:09"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/cd74hc366-q1",+ "pages": 18,+ "sha256": "e47d0281794c01ae",+ "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]"+ }+}