component
SN74CBT3253CPWR
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.
← Commit history
README.mdadded+52@@ -0,0 +1,52 @@+# SN74CBT3253CPWR++**Texas Instruments** · Signal Switches, Multiplexers, Decoders · TSSOP-16++SN74CBT3253CPWR 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 | 1OE | input | Active-low output-enable for multiplexer 1; low connects 1A to the selected 1B port, high gives high impedance between A and B (control inputs 2 V min VIH, 0.8 V max VIL, up to 5.5 V). |+| 2 | S1 | input | Select input S1 that, with S0, chooses which of the four B ports connects to the A port in both multiplexers. |+| 3 | 1B4 | bidirectional | Multiplexer 1 B4 data port, connected to 1A when S1 and S0 are high and 1OE is low; supports 0 to 5.5 V signaling. |+| 4 | 1B3 | bidirectional | Multiplexer 1 B3 data port, connected to 1A when S1 is high, S0 is low and 1OE is low; supports 0 to 5.5 V signaling. |+| 5 | 1B2 | bidirectional | Multiplexer 1 B2 data port, connected to 1A when S1 is low, S0 is high and 1OE is low; supports 0 to 5.5 V signaling. |+| 6 | 1B1 | bidirectional | Multiplexer 1 B1 data port, connected to 1A when S1 and S0 are low and 1OE is low; supports 0 to 5.5 V signaling. |+| 7 | 1A | bidirectional | Multiplexer 1 common A data port, connected to one of 1B1-1B4 as selected by S1 and S0; supports 0 to 5.5 V signaling. |+| 8 | GND | power_in | Ground. |+| 9 | 2A | bidirectional | Multiplexer 2 common A data port, connected to one of 2B1-2B4 as selected by S1 and S0; supports 0 to 5.5 V signaling. |+| 10 | 2B1 | bidirectional | Multiplexer 2 B1 data port, connected to 2A when S1 and S0 are low and 2OE is low; supports 0 to 5.5 V signaling. |+| 11 | 2B2 | bidirectional | Multiplexer 2 B2 data port, connected to 2A when S1 is low, S0 is high and 2OE is low; supports 0 to 5.5 V signaling. |+| 12 | 2B3 | bidirectional | Multiplexer 2 B3 data port, connected to 2A when S1 is high, S0 is low and 2OE is low; supports 0 to 5.5 V signaling. |+| 13 | 2B4 | bidirectional | Multiplexer 2 B4 data port, connected to 2A when S1 and S0 are high and 2OE is low; supports 0 to 5.5 V signaling. |+| 14 | S0 | input | Select input S0 that, with S1, chooses which of the four B ports connects to the A port in both multiplexers. |+| 15 | 2OE | input | Active-low output-enable for multiplexer 2; low connects 2A to the selected 2B port, high gives high impedance between A and B. |+| 16 | VCC | power_in | Supply voltage, 4 V to 5.5 V recommended operating range. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74CBT3253CPWR`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `sn74cbt3253cpwr-etched.step` / `sn74cbt3253cpwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cbt3253cpwr.step` / `sn74cbt3253cpwr.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/sn74cbt3253c.pdf) (26 pp, sha256 `89e75930549ef68c`, 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/sn74cbt3253cpwr-datasheet.pdf)
page.jsonadded+207@@ -0,0 +1,207 @@+{+ "slug": "sn74cbt3253cpwr",+ "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",+ "sn74cbt3253cpwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74cbt3253cpwr.kicad_sym",+ "sn74cbt3253cpwr.kicad_mod",+ "sn74cbt3253cpwr.glb",+ "sn74cbt3253cpwr.step",+ "sn74cbt3253cpwr.lbr",+ "docs/hero.png",+ "docs/sn74cbt3253cpwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "SN74CBT3253CPWR",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Signal Switches, Multiplexers, Decoders",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn74cbt3253c.pdf",+ "parts": {+ "symbol": "sn74cbt3253cpwr.kicad_sym",+ "footprint": "sn74cbt3253cpwr.kicad_mod",+ "model_3d": "sn74cbt3253cpwr-etched.glb",+ "model_3d_plain": "sn74cbt3253cpwr.glb",+ "model_3d_step": "sn74cbt3253cpwr-etched.step",+ "model_3d_step_plain": "sn74cbt3253cpwr.step",+ "lbr": "sn74cbt3253cpwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2674672",+ "digikey": "296-19207-2-ND",+ "mouser": "595-SN74CBT3253CPWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T05:26:12Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-19207-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74CBT3253CPWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "1OE",+ "type": "input",+ "description": "Active-low output-enable for multiplexer 1; low connects 1A to the selected 1B port, high gives high impedance between A and B (control inputs 2 V min VIH, 0.8 V max VIL, up to 5.5 V)."+ },+ {+ "number": "2",+ "name": "S1",+ "type": "input",+ "description": "Select input S1 that, with S0, chooses which of the four B ports connects to the A port in both multiplexers."+ },+ {+ "number": "3",+ "name": "1B4",+ "type": "bidirectional",+ "description": "Multiplexer 1 B4 data port, connected to 1A when S1 and S0 are high and 1OE is low; supports 0 to 5.5 V signaling."+ },+ {+ "number": "4",+ "name": "1B3",+ "type": "bidirectional",+ "description": "Multiplexer 1 B3 data port, connected to 1A when S1 is high, S0 is low and 1OE is low; supports 0 to 5.5 V signaling."+ },+ {+ "number": "5",+ "name": "1B2",+ "type": "bidirectional",+ "description": "Multiplexer 1 B2 data port, connected to 1A when S1 is low, S0 is high and 1OE is low; supports 0 to 5.5 V signaling."+ },+ {+ "number": "6",+ "name": "1B1",+ "type": "bidirectional",+ "description": "Multiplexer 1 B1 data port, connected to 1A when S1 and S0 are low and 1OE is low; supports 0 to 5.5 V signaling."+ },+ {+ "number": "7",+ "name": "1A",+ "type": "bidirectional",+ "description": "Multiplexer 1 common A data port, connected to one of 1B1-1B4 as selected by S1 and S0; supports 0 to 5.5 V signaling."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground."+ },+ {+ "number": "9",+ "name": "2A",+ "type": "bidirectional",+ "description": "Multiplexer 2 common A data port, connected to one of 2B1-2B4 as selected by S1 and S0; supports 0 to 5.5 V signaling."+ },+ {+ "number": "10",+ "name": "2B1",+ "type": "bidirectional",+ "description": "Multiplexer 2 B1 data port, connected to 2A when S1 and S0 are low and 2OE is low; supports 0 to 5.5 V signaling."+ },+ {+ "number": "11",+ "name": "2B2",+ "type": "bidirectional",+ "description": "Multiplexer 2 B2 data port, connected to 2A when S1 is low, S0 is high and 2OE is low; supports 0 to 5.5 V signaling."+ },+ {+ "number": "12",+ "name": "2B3",+ "type": "bidirectional",+ "description": "Multiplexer 2 B3 data port, connected to 2A when S1 is high, S0 is low and 2OE is low; supports 0 to 5.5 V signaling."+ },+ {+ "number": "13",+ "name": "2B4",+ "type": "bidirectional",+ "description": "Multiplexer 2 B4 data port, connected to 2A when S1 and S0 are high and 2OE is low; supports 0 to 5.5 V signaling."+ },+ {+ "number": "14",+ "name": "S0",+ "type": "input",+ "description": "Select input S0 that, with S1, chooses which of the four B ports connects to the A port in both multiplexers."+ },+ {+ "number": "15",+ "name": "2OE",+ "type": "input",+ "description": "Active-low output-enable for multiplexer 2; low connects 2A to the selected 2B port, high gives high impedance between A and B."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, 4 V to 5.5 V recommended operating range."+ }+ ],+ "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: Pins 8 (GND) and 16 (VCC) are not explicitly labeled in the logic diagram on page 3. These assignmen",+ "1/16 pins cited to the wrong page (name found elsewhere): ['16:VCC@p4']"+ ],+ "pages_sent": 26,+ "cost_usd": 0.264,+ "at": "2026-10-01T05:25:54"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn74cbt3253c.pdf",+ "pages": 26,+ "sha256": "89e75930549ef68c",+ "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]"+ }+}