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SN74CBT3384CDBQR
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Texas Instruments Analog Switches, Multiplexers, QSOP-24-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+60@@ -0,0 +1,60 @@+# SN74CBT3384CDBQR++**Texas Instruments** · Analog Switches, Multiplexers · QSOP-24-150mil++SN74CBT3384CDBQR from Texas Instruments, in a QSOP-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 | 1OE | input | Output enable for the first 5-bit bus switch, active low (switch ON when low, high-impedance when high); control input VIH 2 V min, tie to VCC via pullup for power up/down. |+| 2 | 1B1 | bidirectional | Bus 1 B-port bit 1 switch I/O, connected to 1A1 when 1OE is low, supports 0 to 5.5 V data levels. |+| 3 | 1A1 | bidirectional | Bus 1 A-port bit 1 switch I/O, connected to 1B1 when 1OE is low, with undershoot protection down to -2 V. |+| 4 | 1A2 | bidirectional | Bus 1 A-port bit 2 switch I/O, connected to 1B2 when 1OE is low, with undershoot protection down to -2 V. |+| 5 | 1B2 | bidirectional | Bus 1 B-port bit 2 switch I/O, connected to 1A2 when 1OE is low, supports 0 to 5.5 V data levels. |+| 6 | 1B3 | bidirectional | Bus 1 B-port bit 3 switch I/O, connected to 1A3 when 1OE is low, supports 0 to 5.5 V data levels. |+| 7 | 1A3 | bidirectional | Bus 1 A-port bit 3 switch I/O, connected to 1B3 when 1OE is low, with undershoot protection down to -2 V. |+| 8 | 1A4 | bidirectional | Bus 1 A-port bit 4 switch I/O, connected to 1B4 when 1OE is low, with undershoot protection down to -2 V. |+| 9 | 1B4 | bidirectional | Bus 1 B-port bit 4 switch I/O, connected to 1A4 when 1OE is low, supports 0 to 5.5 V data levels. |+| 10 | 1B5 | bidirectional | Bus 1 B-port bit 5 switch I/O, connected to 1A5 when 1OE is low, supports 0 to 5.5 V data levels. |+| 11 | 1A5 | bidirectional | Bus 1 A-port bit 5 switch I/O, connected to 1B5 when 1OE is low, with undershoot protection down to -2 V. |+| 12 | GND | power_in | Ground; unused control inputs must be held at VCC or GND. |+| 13 | 2OE | input | Output enable for the second 5-bit bus switch, active low (switch ON when low, high-impedance when high); control input VIH 2 V min, tie to VCC via pullup for power up/down. |+| 14 | 2A1 | bidirectional | Bus 2 A-port bit 1 switch I/O, connected to 2B1 when 2OE is low, with undershoot protection down to -2 V. |+| 15 | 2B1 | bidirectional | Bus 2 B-port bit 1 switch I/O, connected to 2A1 when 2OE is low, supports 0 to 5.5 V data levels. |+| 16 | 2B2 | bidirectional | Bus 2 B-port bit 2 switch I/O, connected to 2A2 when 2OE is low, supports 0 to 5.5 V data levels. |+| 17 | 2A2 | bidirectional | Bus 2 A-port bit 2 switch I/O, connected to 2B2 when 2OE is low, with undershoot protection down to -2 V. |+| 18 | 2A3 | bidirectional | Bus 2 A-port bit 3 switch I/O, connected to 2B3 when 2OE is low, with undershoot protection down to -2 V. |+| 19 | 2B3 | bidirectional | Bus 2 B-port bit 3 switch I/O, connected to 2A3 when 2OE is low, supports 0 to 5.5 V data levels. |+| 20 | 2B4 | bidirectional | Bus 2 B-port bit 4 switch I/O, connected to 2A4 when 2OE is low, supports 0 to 5.5 V data levels. |+| 21 | 2A4 | bidirectional | Bus 2 A-port bit 4 switch I/O, connected to 2B4 when 2OE is low, with undershoot protection down to -2 V. |+| 22 | 2A5 | bidirectional | Bus 2 A-port bit 5 switch I/O, connected to 2B5 when 2OE is low, with undershoot protection down to -2 V. |+| 23 | 2B5 | bidirectional | Bus 2 B-port bit 5 switch I/O, connected to 2A5 when 2OE is low, supports 0 to 5.5 V data levels. |+| 24 | VCC | power_in | Supply voltage, 4 V to 5.5 V recommended operating range (absolute maximum -0.5 V to 7 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | QSOP-24-150mil |+| Category | Interface |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `SN74CBT3384CDBQR`+- Footprint: `Package_SO:QSOP-24_3.9x8.7mm_P0.635mm`+- 3D model: QSOP-24-150mil (KiCad packages3D, STEP)+- 3D model files: `sn74cbt3384cdbqr-etched.step` / `sn74cbt3384cdbqr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cbt3384cdbqr.step` / `sn74cbt3384cdbqr.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/sn74cbt3384c) (21 pp, sha256 `66957e3345e79c14`, retrieved 2026-09-30, 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/sn74cbt3384cdbqr-datasheet.pdf)
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control input VIH 2 V min, tie to VCC via pullup for power up/down."+ },+ {+ "number": "2",+ "name": "1B1",+ "type": "bidirectional",+ "description": "Bus 1 B-port bit 1 switch I/O, connected to 1A1 when 1OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "3",+ "name": "1A1",+ "type": "bidirectional",+ "description": "Bus 1 A-port bit 1 switch I/O, connected to 1B1 when 1OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "4",+ "name": "1A2",+ "type": "bidirectional",+ "description": "Bus 1 A-port bit 2 switch I/O, connected to 1B2 when 1OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "5",+ "name": "1B2",+ "type": "bidirectional",+ "description": "Bus 1 B-port bit 2 switch I/O, connected to 1A2 when 1OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "6",+ "name": "1B3",+ "type": "bidirectional",+ "description": "Bus 1 B-port bit 3 switch I/O, connected to 1A3 when 1OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "7",+ "name": "1A3",+ "type": "bidirectional",+ "description": "Bus 1 A-port bit 3 switch I/O, connected to 1B3 when 1OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "8",+ "name": "1A4",+ "type": "bidirectional",+ "description": "Bus 1 A-port bit 4 switch I/O, connected to 1B4 when 1OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "9",+ "name": "1B4",+ "type": "bidirectional",+ "description": "Bus 1 B-port bit 4 switch I/O, connected to 1A4 when 1OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "10",+ "name": "1B5",+ "type": "bidirectional",+ "description": "Bus 1 B-port bit 5 switch I/O, connected to 1A5 when 1OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "11",+ "name": "1A5",+ "type": "bidirectional",+ "description": "Bus 1 A-port bit 5 switch I/O, connected to 1B5 when 1OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground; unused control inputs must be held at VCC or GND."+ },+ {+ "number": "13",+ "name": "2OE",+ "type": "input",+ "description": "Output enable for the second 5-bit bus switch, active low (switch ON when low, high-impedance when high); control input VIH 2 V min, tie to VCC via pullup for power up/down."+ },+ {+ "number": "14",+ "name": "2A1",+ "type": "bidirectional",+ "description": "Bus 2 A-port bit 1 switch I/O, connected to 2B1 when 2OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "15",+ "name": "2B1",+ "type": "bidirectional",+ "description": "Bus 2 B-port bit 1 switch I/O, connected to 2A1 when 2OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "16",+ "name": "2B2",+ "type": "bidirectional",+ "description": "Bus 2 B-port bit 2 switch I/O, connected to 2A2 when 2OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "17",+ "name": "2A2",+ "type": "bidirectional",+ "description": "Bus 2 A-port bit 2 switch I/O, connected to 2B2 when 2OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "18",+ "name": "2A3",+ "type": "bidirectional",+ "description": "Bus 2 A-port bit 3 switch I/O, connected to 2B3 when 2OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "19",+ "name": "2B3",+ "type": "bidirectional",+ "description": "Bus 2 B-port bit 3 switch I/O, connected to 2A3 when 2OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "20",+ "name": "2B4",+ "type": "bidirectional",+ "description": "Bus 2 B-port bit 4 switch I/O, connected to 2A4 when 2OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "21",+ "name": "2A4",+ "type": "bidirectional",+ "description": "Bus 2 A-port bit 4 switch I/O, connected to 2B4 when 2OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "22",+ "name": "2A5",+ "type": "bidirectional",+ "description": "Bus 2 A-port bit 5 switch I/O, connected to 2B5 when 2OE is low, with undershoot protection down to -2 V."+ },+ {+ "number": "23",+ "name": "2B5",+ "type": "bidirectional",+ "description": "Bus 2 B-port bit 5 switch I/O, connected to 2A5 when 2OE is low, supports 0 to 5.5 V data levels."+ },+ {+ "number": "24",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, 4 V to 5.5 V recommended operating range (absolute maximum -0.5 V to 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": 21,+ "cost_usd": 0.1598,+ "at": "2026-09-30T01:26:54"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74cbt3384c",+ "pages": 21,+ "sha256": "66957e3345e79c14",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}