component
SN74CBT3383DBQR
Public Made by Adomby adom
Texas Instruments Analog Switches / Multiplexers, SSOP-24-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+60@@ -0,0 +1,60 @@+# SN74CBT3383DBQR++**Texas Instruments** · Analog Switches / Multiplexers · SSOP-24-150mil++SN74CBT3383DBQR from Texas Instruments, in a SSOP-24-150mil. 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 | BE | input | Active-low input enable pin; when low, enables the bus switches; when high, places all switches in high-impedance state |+| 2 | 1B1 | bidirectional | Transceiver I/O pin for first bit pair B side |+| 3 | 1A1 | bidirectional | Transceiver I/O pin for first bit pair A side |+| 4 | 1A2 | bidirectional | Transceiver I/O pin for first bit pair A side |+| 5 | 1B2 | bidirectional | Transceiver I/O pin for first bit pair B side |+| 6 | 2B1 | bidirectional | Transceiver I/O pin for second bit pair B side |+| 7 | 2A1 | bidirectional | Transceiver I/O pin for second bit pair A side |+| 8 | 2A2 | bidirectional | Transceiver I/O pin for second bit pair A side |+| 9 | 2B2 | bidirectional | Transceiver I/O pin for second bit pair B side |+| 10 | 3B1 | bidirectional | Transceiver I/O pin for third bit pair B side |+| 11 | 3A1 | bidirectional | Transceiver I/O pin for third bit pair A side |+| 12 | GND | power_in | Ground connection, 0V reference |+| 13 | BX | input | Output select pin; when low provides direct A-to-B connection; when high provides crossed A-to-B2 and A2-to-B1 bus exchange |+| 14 | 3A2 | bidirectional | Transceiver I/O pin for third bit pair A side |+| 15 | 3B2 | bidirectional | Transceiver I/O pin for third bit pair B side |+| 16 | 4B1 | bidirectional | Transceiver I/O pin for fourth bit pair B side |+| 17 | 4A1 | bidirectional | Transceiver I/O pin for fourth bit pair A side |+| 18 | 4A2 | bidirectional | Transceiver I/O pin for fourth bit pair A side |+| 19 | 4B2 | bidirectional | Transceiver I/O pin for fourth bit pair B side |+| 20 | 5B1 | bidirectional | Transceiver I/O pin for fifth bit pair B side |+| 21 | 5A1 | bidirectional | Transceiver I/O pin for fifth bit pair A side |+| 22 | 5A2 | bidirectional | Transceiver I/O pin for fifth bit pair A side |+| 23 | 5B2 | bidirectional | Transceiver I/O pin for fifth bit pair B side |+| 24 | VCC | power_in | Power supply pin; +5V nominal operation with 4.5V to 5.5V recommended operating range |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-24-150mil |+| Category | Communication Interface Chip/UART/485/232 |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `SN74CBT3383DBQR`+- Footprint: `Package_SO:SSOP-24_5.3x8.2mm_P0.65mm`+- 3D model: SSOP-24-150mil (KiCad packages3D, STEP)+- 3D model files: `sn74cbt3383dbqr-etched.step` / `sn74cbt3383dbqr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cbt3383dbqr.step` / `sn74cbt3383dbqr.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/cn/lit/gpn/sn74cbt3383) (24 pp, sha256 `7b570c6029a0dda5`, retrieved 2026-10-07, tier: lcsc)+- **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/sn74cbt3383dbqr-datasheet.pdf)
page.jsonadded+294@@ -0,0 +1,294 @@+{+ "slug": "sn74cbt3383dbqr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Analog Switches / Multiplexers, SSOP-24-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "communication interface chip-uart-485-232",+ "sn74cbt3383dbqr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74cbt3383dbqr.kicad_sym",+ "sn74cbt3383dbqr.kicad_mod",+ "sn74cbt3383dbqr.glb",+ "sn74cbt3383dbqr.step",+ "sn74cbt3383dbqr.lbr",+ "docs/hero.png",+ "docs/sn74cbt3383dbqr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74cbt3383dbqr-hero.glb",+ "sn74cbt3383dbqr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74CBT3383DBQR",+ "manufacturer": "Texas Instruments",+ "package": "SSOP-24-150mil",+ "pin_count": 24,+ "category": "Communication Interface Chip/UART/485/232",+ "subcategory": "Analog Switches / Multiplexers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn74cbt3383",+ "parts": {+ "symbol": "sn74cbt3383dbqr.kicad_sym",+ "footprint": "sn74cbt3383dbqr.kicad_mod",+ "model_3d": "sn74cbt3383dbqr-hero.glb",+ "model_3d_plain": "sn74cbt3383dbqr.glb",+ "model_3d_step": "sn74cbt3383dbqr-etched.step",+ "model_3d_step_plain": "sn74cbt3383dbqr.step",+ "lbr": "sn74cbt3383dbqr.lbr"+ },+ "distributor_links": {+ "lcsc": "C105220",+ "digikey": "296-6443-2-ND",+ "mouser": "595-SN74CBT3383DBQR"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T08:19:28Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-6443-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74CBT3383DBQR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "BE",+ "type": "input",+ "description": "Active-low input enable pin; when low, enables the bus switches; when high, places all switches in high-impedance state"+ },+ {+ "number": "2",+ "name": "1B1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for first bit pair B side"+ },+ {+ "number": "3",+ "name": "1A1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for first bit pair A side"+ },+ {+ "number": "4",+ "name": "1A2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for first bit pair A side"+ },+ {+ "number": "5",+ "name": "1B2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for first bit pair B side"+ },+ {+ "number": "6",+ "name": "2B1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for second bit pair B side"+ },+ {+ "number": "7",+ "name": "2A1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for second bit pair A side"+ },+ {+ "number": "8",+ "name": "2A2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for second bit pair A side"+ },+ {+ "number": "9",+ "name": "2B2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for second bit pair B side"+ },+ {+ "number": "10",+ "name": "3B1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for third bit pair B side"+ },+ {+ "number": "11",+ "name": "3A1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for third bit pair A side"+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection, 0V reference"+ },+ {+ "number": "13",+ "name": "BX",+ "type": "input",+ "description": "Output select pin; when low provides direct A-to-B connection; when high provides crossed A-to-B2 and A2-to-B1 bus exchange"+ },+ {+ "number": "14",+ "name": "3A2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for third bit pair A side"+ },+ {+ "number": "15",+ "name": "3B2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for third bit pair B side"+ },+ {+ "number": "16",+ "name": "4B1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for fourth bit pair B side"+ },+ {+ "number": "17",+ "name": "4A1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for fourth bit pair A side"+ },+ {+ "number": "18",+ "name": "4A2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for fourth bit pair A side"+ },+ {+ "number": "19",+ "name": "4B2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for fourth bit pair B side"+ },+ {+ "number": "20",+ "name": "5B1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for fifth bit pair B side"+ },+ {+ "number": "21",+ "name": "5A1",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for fifth bit pair A side"+ },+ {+ "number": "22",+ "name": "5A2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for fifth bit pair A side"+ },+ {+ "number": "23",+ "name": "5B2",+ "type": "bidirectional",+ "description": "Transceiver I/O pin for fifth bit pair B side"+ },+ {+ "number": "24",+ "name": "VCC",+ "type": "power_in",+ "description": "Power supply pin; +5V nominal operation with 4.5V to 5.5V 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": [],+ "pages_sent": 24,+ "cost_usd": 0.124,+ "at": "2026-10-07T08:19:08"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74cbt3383",+ "pages": 24,+ "sha256": "7b570c6029a0dda5",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 24,+ "described": 24,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "sn74cbt3383dbqr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 8.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "77dd0a1fc7e70e9eda1bfde9dde937dc6e391803cff9978790523c850c85a21d",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74cbt3383dbqr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 8.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "0d96d3ccb79ae8d81eb3b9580846bb424fb7ac8344d91b1c06a5cf5a62e428d4",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}