component
SN74LV157APWR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# SN74LV157APWR++**Texas Instruments** · Signal Switches, Multiplexers, Decoders · TSSOP-16++SN74LV157APWR 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 | A/B | input | Address select input that routes either the A or B channel input to the output based on its logic level. |+| 2 | 1A | input | Channel 1 data input A. |+| 3 | 1B | input | Channel 1 data input B. |+| 4 | 1Y | output | Channel 1 data output. |+| 5 | 2A | input | Channel 2 data input A. |+| 6 | 2B | input | Channel 2 data input B. |+| 7 | 2Y | output | Channel 2 data output. |+| 8 | GND | power_in | Ground, negative supply reference. |+| 9 | 3Y | output | Channel 3 data output. |+| 10 | 3B | input | Channel 3 data input B. |+| 11 | 3A | input | Channel 3 data input A. |+| 12 | 4Y | output | Channel 4 data output. |+| 13 | 4B | input | Channel 4 data input B. |+| 14 | 4A | input | Channel 4 data input A. |+| 15 | G | input | Output strobe (enable) input, active low; forces all outputs low when high. |+| 16 | VCC | power_in | Positive supply voltage, 2 V to 5.5 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74LV157APWR`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `sn74lv157apwr-etched.step` / `sn74lv157apwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lv157apwr.step` / `sn74lv157apwr.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/lit/ds/symlink/sn74lv157a.pdf) (28 pp, sha256 `a2011f2d99dd06d2`, retrieved 2026-10-05, tier: manufacturer)+- **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/sn74lv157apwr-datasheet.pdf)
page.jsonadded+207@@ -0,0 +1,207 @@+{+ "slug": "sn74lv157apwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74lv157apwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74lv157apwr.kicad_sym",+ "sn74lv157apwr.kicad_mod",+ "sn74lv157apwr.glb",+ "sn74lv157apwr.step",+ "sn74lv157apwr.lbr",+ "docs/hero.png",+ "docs/sn74lv157apwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74lv157apwr-hero.glb",+ "sn74lv157apwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74LV157APWR",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Signal Switches, Multiplexers, Decoders",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lv157a.pdf",+ "parts": {+ "symbol": "sn74lv157apwr.kicad_sym",+ "footprint": "sn74lv157apwr.kicad_mod",+ "model_3d": "sn74lv157apwr-hero.glb",+ "model_3d_plain": "sn74lv157apwr.glb",+ "model_3d_step": "sn74lv157apwr-etched.step",+ "model_3d_step_plain": "sn74lv157apwr.step",+ "lbr": "sn74lv157apwr.lbr"+ },+ "distributor_links": {+ "lcsc": 7781,+ "digikey": "296-9833-2-ND",+ "mouser": "595-SN74LV157APWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-05T22:03:00Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-9833-2-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-SN74LV157APWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "A/B",+ "type": "input",+ "description": "Address select input that routes either the A or B channel input to the output based on its logic level."+ },+ {+ "number": "2",+ "name": "1A",+ "type": "input",+ "description": "Channel 1 data input A."+ },+ {+ "number": "3",+ "name": "1B",+ "type": "input",+ "description": "Channel 1 data input B."+ },+ {+ "number": "4",+ "name": "1Y",+ "type": "output",+ "description": "Channel 1 data output."+ },+ {+ "number": "5",+ "name": "2A",+ "type": "input",+ "description": "Channel 2 data input A."+ },+ {+ "number": "6",+ "name": "2B",+ "type": "input",+ "description": "Channel 2 data input B."+ },+ {+ "number": "7",+ "name": "2Y",+ "type": "output",+ "description": "Channel 2 data output."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground, negative supply reference."+ },+ {+ "number": "9",+ "name": "3Y",+ "type": "output",+ "description": "Channel 3 data output."+ },+ {+ "number": "10",+ "name": "3B",+ "type": "input",+ "description": "Channel 3 data input B."+ },+ {+ "number": "11",+ "name": "3A",+ "type": "input",+ "description": "Channel 3 data input A."+ },+ {+ "number": "12",+ "name": "4Y",+ "type": "output",+ "description": "Channel 4 data output."+ },+ {+ "number": "13",+ "name": "4B",+ "type": "input",+ "description": "Channel 4 data input B."+ },+ {+ "number": "14",+ "name": "4A",+ "type": "input",+ "description": "Channel 4 data input A."+ },+ {+ "number": "15",+ "name": "G",+ "type": "input",+ "description": "Output strobe (enable) input, active low; forces all outputs low when high."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply voltage, 2 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-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Table 5-1 (PAGE 3) has inconsistent I/O column designations: pins 5 and 6 (2A, 2B) are marked as 'O'"+ ],+ "pages_sent": 28,+ "cost_usd": 0.1798,+ "at": "2026-10-05T22:02:44"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn74lv157a.pdf",+ "pages": 28,+ "sha256": "a2011f2d99dd06d2",+ "source_tier": "mfr"+ },+ "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]"+ }+}