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SN74AHC157PWR
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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 @@+# SN74AHC157PWR++**Texas Instruments** · Signal Switches, Multiplexers, Decoders · TSSOP-16++SN74AHC157PWR 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. |+| 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. |+| 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, active low. |+| 16 | VCC | power_in | Positive supply. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74AHC157PWR`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `sn74ahc157pwr-etched.step` / `sn74ahc157pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74ahc157pwr.step` / `sn74ahc157pwr.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/sn74ahc157.pdf) (38 pp, sha256 `251d3050d46194ca`, retrieved 2026-10-01, 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/sn74ahc157pwr-datasheet.pdf)
page.jsonadded+204@@ -0,0 +1,204 @@+{+ "slug": "sn74ahc157pwr",+ "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",+ "sn74ahc157pwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74ahc157pwr.kicad_sym",+ "sn74ahc157pwr.kicad_mod",+ "sn74ahc157pwr.glb",+ "sn74ahc157pwr.step",+ "sn74ahc157pwr.lbr",+ "docs/hero.png",+ "docs/sn74ahc157pwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "SN74AHC157PWR",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Signal Switches, Multiplexers, Decoders",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn74ahc157.pdf",+ "parts": {+ "symbol": "sn74ahc157pwr.kicad_sym",+ "footprint": "sn74ahc157pwr.kicad_mod",+ "model_3d": "sn74ahc157pwr-etched.glb",+ "model_3d_plain": "sn74ahc157pwr.glb",+ "model_3d_step": "sn74ahc157pwr-etched.step",+ "model_3d_step_plain": "sn74ahc157pwr.step",+ "lbr": "sn74ahc157pwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2674749",+ "digikey": "296-4555-2-ND",+ "mouser": "595-SN74AHC157PWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T06:02:11Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-4555-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74AHC157PWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "A/B",+ "type": "input",+ "description": "Address select."+ },+ {+ "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."+ },+ {+ "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, active low."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply."+ }+ ],+ "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": 11,+ "cost_usd": 0.1114,+ "at": "2026-10-01T06:01:54"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn74ahc157.pdf",+ "pages": 38,+ "sha256": "251d3050d46194ca",+ "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]"+ }+}