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SN74LV4051ATDRQ1
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Texas Instruments Analog Switches, Multiplexers, 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 @@+# SN74LV4051ATDRQ1++**Texas Instruments** · Analog Switches, Multiplexers · SOIC-16++SN74LV4051ATDRQ1 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 | Y4 | passive | Analog channel 4 of the multiplexer, connected to COM when INH is low and C-B-A = 100; in demultiplexer use it is an output. |+| 2 | Y6 | passive | Analog channel 6 of the multiplexer, connected to COM when INH is low and C-B-A = 110; in demultiplexer use it is an output. |+| 3 | COM | passive | Common analog terminal of the multiplexer, the output in multiplexer mode and the input in demultiplexer mode. |+| 4 | Y7 | passive | Analog channel 7 of the multiplexer, connected to COM when INH is low and C-B-A = 111; in demultiplexer use it is an output. |+| 5 | Y5 | passive | Analog channel 5 of the multiplexer, connected to COM when INH is low and C-B-A = 101; in demultiplexer use it is an output. |+| 6 | INH | input | Enable input for the switch outputs: logic low turns the outputs on and logic high turns them off (no channel selected). |+| 7 | GND | power_in | Ground reference pin. |+| 8 | GND | power_in | Ground reference pin. |+| 9 | C | input | Selector line (most significant bit) for choosing the active channel; see the Function Table in section 7.4. |+| 10 | B | input | Selector line (middle bit) for choosing the active channel; see the Function Table in section 7.4. |+| 11 | A | input | Selector line (least significant bit) for choosing the active channel; see the Function Table in section 7.4. |+| 12 | Y3 | passive | Analog channel 3 of the multiplexer, connected to COM when INH is low and C-B-A = 011; in demultiplexer use it is an output. |+| 13 | Y0 | passive | Analog channel 0 of the multiplexer, connected to COM when INH is low and C-B-A = 000; in demultiplexer use it is an output. |+| 14 | Y1 | passive | Analog channel 1 of the multiplexer, connected to COM when INH is low and C-B-A = 001; in demultiplexer use it is an output. |+| 15 | Y2 | passive | Analog channel 2 of the multiplexer, connected to COM when INH is low and C-B-A = 010; in demultiplexer use it is an output. |+| 16 | VCC | power_in | Device supply input; the recommended operating range is 1.65 V to 5.5 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16 |+| Category | Interface |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74LV4051ATDRQ1`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D, STEP)+- 3D model files: `sn74lv4051atdrq1-etched.step` / `sn74lv4051atdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lv4051atdrq1.step` / `sn74lv4051atdrq1.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/sn74lv4051a-q1) (32 pp, sha256 `58c28e5145195727`, retrieved 2026-10-07, 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-5-5` (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/sn74lv4051atdrq1-datasheet.pdf)
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in demultiplexer use it is an output."+ },+ {+ "number": "2",+ "name": "Y6",+ "type": "passive",+ "description": "Analog channel 6 of the multiplexer, connected to COM when INH is low and C-B-A = 110; in demultiplexer use it is an output."+ },+ {+ "number": "3",+ "name": "COM",+ "type": "passive",+ "description": "Common analog terminal of the multiplexer, the output in multiplexer mode and the input in demultiplexer mode."+ },+ {+ "number": "4",+ "name": "Y7",+ "type": "passive",+ "description": "Analog channel 7 of the multiplexer, connected to COM when INH is low and C-B-A = 111; in demultiplexer use it is an output."+ },+ {+ "number": "5",+ "name": "Y5",+ "type": "passive",+ "description": "Analog channel 5 of the multiplexer, connected to COM when INH is low and C-B-A = 101; in demultiplexer use it is an output."+ },+ {+ "number": "6",+ "name": "INH",+ "type": "input",+ "description": "Enable input for the switch outputs: logic low turns the outputs on and logic high turns them off (no channel selected)."+ },+ {+ "number": "7",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin."+ },+ {+ "number": "9",+ "name": "C",+ "type": "input",+ "description": "Selector line (most significant bit) for choosing the active channel; see the Function Table in section 7.4."+ },+ {+ "number": "10",+ "name": "B",+ "type": "input",+ "description": "Selector line (middle bit) for choosing the active channel; see the Function Table in section 7.4."+ },+ {+ "number": "11",+ "name": "A",+ "type": "input",+ "description": "Selector line (least significant bit) for choosing the active channel; see the Function Table in section 7.4."+ },+ {+ "number": "12",+ "name": "Y3",+ "type": "passive",+ "description": "Analog channel 3 of the multiplexer, connected to COM when INH is low and C-B-A = 011; in demultiplexer use it is an output."+ },+ {+ "number": "13",+ "name": "Y0",+ "type": "passive",+ "description": "Analog channel 0 of the multiplexer, connected to COM when INH is low and C-B-A = 000; in demultiplexer use it is an output."+ },+ {+ "number": "14",+ "name": "Y1",+ "type": "passive",+ "description": "Analog channel 1 of the multiplexer, connected to COM when INH is low and C-B-A = 001; in demultiplexer use it is an output."+ },+ {+ "number": "15",+ "name": "Y2",+ "type": "passive",+ "description": "Analog channel 2 of the multiplexer, connected to COM when INH is low and C-B-A = 010; in demultiplexer use it is an output."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Device supply input; the recommended operating range is 1.65 V to 5.5 V."+ }+ ],+ "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: Package mapping: the MPN SN74LV4051ATDRQ1 is listed as SOIC (D), 16 pins, 2500-unit reel in the pack; Pin types are a judgement call: the datasheet labels Y0-Y7 and COM as I/O (I/O in multiplexer mode, ; Pin descriptions combine the datasheet's pin-function table (page 3) with the Function Table (page 1"+ ],+ "pages_sent": 32,+ "cost_usd": 0.1026,+ "at": "2026-10-07T23:30:13"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74lv4051a-q1",+ "pages": 32,+ "sha256": "58c28e5145195727",+ "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"+ },+ "models_3d": [+ {+ "file": "sn74lv4051atdrq1.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74lv4051atdrq1-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "01cbd6824ac792c47120d2e5faaa3124efa2eb8cc23b632be844f7091f022452",+ "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]"+ }+}