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SN74HCS138PWR
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 @@+# SN74HCS138PWR++**Texas Instruments** · Signal Switches, Multiplexers, Decoders · TSSOP-16++SN74HCS138PWR 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 | A0 | input | Address select input 0 for 3:8 decoder output selection |+| 2 | A1 | input | Address select input 1 for 3:8 decoder output selection |+| 3 | A2 | input | Address select input 2 for 3:8 decoder output selection |+| 4 | G0 | input | Active low strobe input; all outputs forced high when G0 is high |+| 5 | G1 | input | Active low strobe input; all outputs forced high when G1 is high |+| 6 | G2 | input | Strobe input; all outputs forced high when G2 is low |+| 7 | Y7 | output | Decoder output 7; normally high, driven low when address and strobes select this output |+| 8 | GND | power_in | Ground |+| 9 | Y6 | output | Decoder output 6; normally high, driven low when address and strobes select this output |+| 10 | Y5 | output | Decoder output 5; normally high, driven low when address and strobes select this output |+| 11 | Y4 | output | Decoder output 4; normally high, driven low when address and strobes select this output |+| 12 | Y3 | output | Decoder output 3; normally high, driven low when address and strobes select this output |+| 13 | Y2 | output | Decoder output 2; normally high, driven low when address and strobes select this output |+| 14 | Y1 | output | Decoder output 1; normally high, driven low when address and strobes select this output |+| 15 | Y0 | output | Decoder output 0; normally high, driven low when address and strobes select this output |+| 16 | VCC | power_in | Positive supply voltage, 2 V to 6 V recommended operating range |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74HCS138PWR`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `sn74hcs138pwr-etched.step` / `sn74hcs138pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74hcs138pwr.step` / `sn74hcs138pwr.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/sn74hcs138.pdf) (33 pp, sha256 `ff3429a5472dee2b`, retrieved 2026-09-24, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/sn74hcs138pwr-datasheet.pdf)
page.jsonadded+189@@ -0,0 +1,189 @@+{+ "slug": "sn74hcs138pwr",+ "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",+ "sn74hcs138pwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74hcs138pwr.kicad_sym",+ "sn74hcs138pwr.kicad_mod",+ "sn74hcs138pwr.glb",+ "sn74hcs138pwr.step",+ "sn74hcs138pwr.lbr",+ "docs/hero.png",+ "docs/sn74hcs138pwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "SN74HCS138PWR",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Signal Switches, Multiplexers, Decoders",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn74hcs138.pdf",+ "parts": {+ "symbol": "sn74hcs138pwr.kicad_sym",+ "footprint": "sn74hcs138pwr.kicad_mod",+ "model_3d": "sn74hcs138pwr-etched.glb",+ "model_3d_plain": "sn74hcs138pwr.glb",+ "model_3d_step": "sn74hcs138pwr-etched.step",+ "model_3d_step_plain": "sn74hcs138pwr.step",+ "lbr": "sn74hcs138pwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2866259"+ },+ "pins": [+ {+ "number": "1",+ "name": "A0",+ "type": "input",+ "description": "Address select input 0 for 3:8 decoder output selection"+ },+ {+ "number": "2",+ "name": "A1",+ "type": "input",+ "description": "Address select input 1 for 3:8 decoder output selection"+ },+ {+ "number": "3",+ "name": "A2",+ "type": "input",+ "description": "Address select input 2 for 3:8 decoder output selection"+ },+ {+ "number": "4",+ "name": "G0",+ "type": "input",+ "description": "Active low strobe input; all outputs forced high when G0 is high"+ },+ {+ "number": "5",+ "name": "G1",+ "type": "input",+ "description": "Active low strobe input; all outputs forced high when G1 is high"+ },+ {+ "number": "6",+ "name": "G2",+ "type": "input",+ "description": "Strobe input; all outputs forced high when G2 is low"+ },+ {+ "number": "7",+ "name": "Y7",+ "type": "output",+ "description": "Decoder output 7; normally high, driven low when address and strobes select this output"+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground"+ },+ {+ "number": "9",+ "name": "Y6",+ "type": "output",+ "description": "Decoder output 6; normally high, driven low when address and strobes select this output"+ },+ {+ "number": "10",+ "name": "Y5",+ "type": "output",+ "description": "Decoder output 5; normally high, driven low when address and strobes select this output"+ },+ {+ "number": "11",+ "name": "Y4",+ "type": "output",+ "description": "Decoder output 4; normally high, driven low when address and strobes select this output"+ },+ {+ "number": "12",+ "name": "Y3",+ "type": "output",+ "description": "Decoder output 3; normally high, driven low when address and strobes select this output"+ },+ {+ "number": "13",+ "name": "Y2",+ "type": "output",+ "description": "Decoder output 2; normally high, driven low when address and strobes select this output"+ },+ {+ "number": "14",+ "name": "Y1",+ "type": "output",+ "description": "Decoder output 1; normally high, driven low when address and strobes select this output"+ },+ {+ "number": "15",+ "name": "Y0",+ "type": "output",+ "description": "Decoder output 0; normally high, driven low when address and strobes select this output"+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply voltage, 2 V to 6 V recommended operating range"+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 33,+ "cost_usd": 0.2615,+ "at": "2026-09-24T01:01:20"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn74hcs138.pdf",+ "pages": 33,+ "sha256": "ff3429a5472dee2b",+ "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]"+ }+}