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SN74CBT3305CPWR
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Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# SN74CBT3305CPWR++**Texas Instruments** · Signal Switches, Multiplexers, Decoders · TSSOP-8++SN74CBT3305CPWR from Texas Instruments, in a TSSOP-8. 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 | 1OE | input | Output-enable input for bus switch 1; high connects 1A to 1B, low gives high impedance between them, and it can be driven by TTL or 5-V/3.3-V CMOS outputs. |+| 2 | 1A | bidirectional | Bus switch 1 A port, connected to 1B when 1OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range. |+| 3 | 1B | bidirectional | Bus switch 1 B port, connected to 1A when 1OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range. |+| 4 | GND | power_in | Ground pin; continuous current through VCC or GND is limited to ±100 mA. |+| 5 | 2A | bidirectional | Bus switch 2 A port, connected to 2B when 2OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range. |+| 6 | 2B | bidirectional | Bus switch 2 B port, connected to 2A when 2OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range. |+| 7 | 2OE | input | Output-enable input for bus switch 2; high connects 2A to 2B, low gives high impedance between them, and it can be driven by TTL or 5-V/3.3-V CMOS outputs. |+| 8 | VCC | power_in | Supply voltage pin with a recommended operating range of 4 V to 5.5 V and an absolute maximum of 7 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-8 |+| Category | Logic |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `SN74CBT3305CPWR`+- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`+- 3D model: TSSOP-8 (KiCad packages3D, STEP)+- 3D model files: `sn74cbt3305cpwr-etched.step` / `sn74cbt3305cpwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cbt3305cpwr.step` / `sn74cbt3305cpwr.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/sn74cbt3305c.pdf) (18 pp, sha256 `96456caabbbe6397`, retrieved 2026-10-06, 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/sn74cbt3305cpwr-datasheet.pdf)
page.jsonadded+158@@ -0,0 +1,158 @@+{+ "slug": "sn74cbt3305cpwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74cbt3305cpwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74cbt3305cpwr.kicad_sym",+ "sn74cbt3305cpwr.kicad_mod",+ "sn74cbt3305cpwr.glb",+ "sn74cbt3305cpwr.step",+ "sn74cbt3305cpwr.lbr",+ "docs/hero.png",+ "docs/sn74cbt3305cpwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74cbt3305cpwr-hero.glb",+ "sn74cbt3305cpwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74CBT3305CPWR",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-8",+ "pin_count": 8,+ "category": "Logic",+ "subcategory": "Signal Switches, Multiplexers, Decoders",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn74cbt3305c.pdf",+ "parts": {+ "symbol": "sn74cbt3305cpwr.kicad_sym",+ "footprint": "sn74cbt3305cpwr.kicad_mod",+ "model_3d": "sn74cbt3305cpwr-hero.glb",+ "model_3d_plain": "sn74cbt3305cpwr.glb",+ "model_3d_step": "sn74cbt3305cpwr-etched.step",+ "model_3d_step_plain": "sn74cbt3305cpwr.step",+ "lbr": "sn74cbt3305cpwr.lbr"+ },+ "distributor_links": {+ "lcsc": 2674841,+ "digikey": "296-19214-2-ND",+ "mouser": "595-SN74CBT3305CPWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-06T03:28:55Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-19214-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74CBT3305CPWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "1OE",+ "type": "input",+ "description": "Output-enable input for bus switch 1; high connects 1A to 1B, low gives high impedance between them, and it can be driven by TTL or 5-V/3.3-V CMOS outputs."+ },+ {+ "number": "2",+ "name": "1A",+ "type": "bidirectional",+ "description": "Bus switch 1 A port, connected to 1B when 1OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range."+ },+ {+ "number": "3",+ "name": "1B",+ "type": "bidirectional",+ "description": "Bus switch 1 B port, connected to 1A when 1OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin; continuous current through VCC or GND is limited to ±100 mA."+ },+ {+ "number": "5",+ "name": "2A",+ "type": "bidirectional",+ "description": "Bus switch 2 A port, connected to 2B when 2OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range."+ },+ {+ "number": "6",+ "name": "2B",+ "type": "bidirectional",+ "description": "Bus switch 2 B port, connected to 2A when 2OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range."+ },+ {+ "number": "7",+ "name": "2OE",+ "type": "input",+ "description": "Output-enable input for bus switch 2; high connects 2A to 2B, low gives high impedance between them, and it can be driven by TTL or 5-V/3.3-V CMOS outputs."+ },+ {+ "number": "8",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage pin with a recommended operating range of 4 V to 5.5 V and an absolute maximum of 7 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": [],+ "pages_sent": 18,+ "cost_usd": 0.1075,+ "at": "2026-10-06T03:28:41"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn74cbt3305c.pdf",+ "pages": 18,+ "sha256": "96456caabbbe6397",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "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]"+ }+}