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SN74CB3T3384PWR
Public Made by Adomby adom
Texas Instruments Analog Switches, Multiplexers, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+60@@ -0,0 +1,60 @@+# SN74CB3T3384PWR++**Texas Instruments** · Analog Switches, Multiplexers · TSSOP-24++SN74CB3T3384PWR from Texas Instruments, in a TSSOP-24. 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 the first 5-bit bus switch: when low the 1A and 1B ports are connected, and when high they are in high-impedance; tie to VCC through a pullup resistor so the high-impedance state holds during power up or power down. |+| 2 | 1B1 | bidirectional | B-side data port 1 of the first 5-bit switch, connected to 1A1 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 3 | 1A1 | bidirectional | A-side data port 1 of the first 5-bit switch, connected to 1B1 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 4 | 1A2 | bidirectional | A-side data port 2 of the first 5-bit switch, connected to 1B2 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 5 | 1B2 | bidirectional | B-side data port 2 of the first 5-bit switch, connected to 1A2 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 6 | 1B3 | bidirectional | B-side data port 3 of the first 5-bit switch, connected to 1A3 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 7 | 1A3 | bidirectional | A-side data port 3 of the first 5-bit switch, connected to 1B3 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 8 | 1A4 | bidirectional | A-side data port 4 of the first 5-bit switch, connected to 1B4 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 9 | 1B4 | bidirectional | B-side data port 4 of the first 5-bit switch, connected to 1A4 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 10 | 1B5 | bidirectional | B-side data port 5 of the first 5-bit switch, connected to 1A5 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 11 | 1A5 | bidirectional | A-side data port 5 of the first 5-bit switch, connected to 1B5 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 12 | GND | power_in | Ground reference for the device; all voltages are referenced to ground. |+| 13 | 2OE | input | Active-low output enable for the second 5-bit bus switch: when low the 2A and 2B ports are connected, and when high they are in high-impedance; tie to VCC through a pullup resistor so the high-impedance state holds during power up or power down. |+| 14 | 2A1 | bidirectional | A-side data port 1 of the second 5-bit switch, connected to 2B1 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 15 | 2B1 | bidirectional | B-side data port 1 of the second 5-bit switch, connected to 2A1 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 16 | 2B2 | bidirectional | B-side data port 2 of the second 5-bit switch, connected to 2A2 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 17 | 2A2 | bidirectional | A-side data port 2 of the second 5-bit switch, connected to 2B2 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 18 | 2A3 | bidirectional | A-side data port 3 of the second 5-bit switch, connected to 2B3 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 19 | 2B3 | bidirectional | B-side data port 3 of the second 5-bit switch, connected to 2A3 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 20 | 2B4 | bidirectional | B-side data port 4 of the second 5-bit switch, connected to 2A4 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 21 | 2A4 | bidirectional | A-side data port 4 of the second 5-bit switch, connected to 2B4 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 22 | 2A5 | bidirectional | A-side data port 5 of the second 5-bit switch, connected to 2B5 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 23 | 2B5 | bidirectional | B-side data port 5 of the second 5-bit switch, connected to 2A5 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V. |+| 24 | VCC | power_in | Supply voltage, recommended operating range 2.3 V to 3.6 V, with ICC of 40 µA max; the data I/O output high level tracks VCC. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-24 |+| Category | Interface |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `SN74CB3T3384PWR`+- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`+- 3D model: TSSOP-24 (KiCad packages3D, STEP)+- 3D model files: `sn74cb3t3384pwr-etched.step` / `sn74cb3t3384pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cb3t3384pwr.step` / `sn74cb3t3384pwr.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/sn74cb3t3384.pdf) (20 pp, sha256 `e32443ebedbb3d06`, retrieved 2026-10-08, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/sn74cb3t3384pwr-datasheet.pdf)
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tie to VCC through a pullup resistor so the high-impedance state holds during power up or power down."+ },+ {+ "number": "2",+ "name": "1B1",+ "type": "bidirectional",+ "description": "B-side data port 1 of the first 5-bit switch, connected to 1A1 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "3",+ "name": "1A1",+ "type": "bidirectional",+ "description": "A-side data port 1 of the first 5-bit switch, connected to 1B1 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "4",+ "name": "1A2",+ "type": "bidirectional",+ "description": "A-side data port 2 of the first 5-bit switch, connected to 1B2 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "5",+ "name": "1B2",+ "type": "bidirectional",+ "description": "B-side data port 2 of the first 5-bit switch, connected to 1A2 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "6",+ "name": "1B3",+ "type": "bidirectional",+ "description": "B-side data port 3 of the first 5-bit switch, connected to 1A3 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "7",+ "name": "1A3",+ "type": "bidirectional",+ "description": "A-side data port 3 of the first 5-bit switch, connected to 1B3 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "8",+ "name": "1A4",+ "type": "bidirectional",+ "description": "A-side data port 4 of the first 5-bit switch, connected to 1B4 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "9",+ "name": "1B4",+ "type": "bidirectional",+ "description": "B-side data port 4 of the first 5-bit switch, connected to 1A4 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "10",+ "name": "1B5",+ "type": "bidirectional",+ "description": "B-side data port 5 of the first 5-bit switch, connected to 1A5 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "11",+ "name": "1A5",+ "type": "bidirectional",+ "description": "A-side data port 5 of the first 5-bit switch, connected to 1B5 when 1OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the device; all voltages are referenced to ground."+ },+ {+ "number": "13",+ "name": "2OE",+ "type": "input",+ "description": "Active-low output enable for the second 5-bit bus switch: when low the 2A and 2B ports are connected, and when high they are in high-impedance; tie to VCC through a pullup resistor so the high-impedance state holds during power up or power down."+ },+ {+ "number": "14",+ "name": "2A1",+ "type": "bidirectional",+ "description": "A-side data port 1 of the second 5-bit switch, connected to 2B1 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "15",+ "name": "2B1",+ "type": "bidirectional",+ "description": "B-side data port 1 of the second 5-bit switch, connected to 2A1 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "16",+ "name": "2B2",+ "type": "bidirectional",+ "description": "B-side data port 2 of the second 5-bit switch, connected to 2A2 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "17",+ "name": "2A2",+ "type": "bidirectional",+ "description": "A-side data port 2 of the second 5-bit switch, connected to 2B2 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "18",+ "name": "2A3",+ "type": "bidirectional",+ "description": "A-side data port 3 of the second 5-bit switch, connected to 2B3 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "19",+ "name": "2B3",+ "type": "bidirectional",+ "description": "B-side data port 3 of the second 5-bit switch, connected to 2A3 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "20",+ "name": "2B4",+ "type": "bidirectional",+ "description": "B-side data port 4 of the second 5-bit switch, connected to 2A4 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "21",+ "name": "2A4",+ "type": "bidirectional",+ "description": "A-side data port 4 of the second 5-bit switch, connected to 2B4 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "22",+ "name": "2A5",+ "type": "bidirectional",+ "description": "A-side data port 5 of the second 5-bit switch, connected to 2B5 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "23",+ "name": "2B5",+ "type": "bidirectional",+ "description": "B-side data port 5 of the second 5-bit switch, connected to 2A5 when 2OE is low; 5-V tolerant, with data I/O rated 0 to 5.5 V."+ },+ {+ "number": "24",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, recommended operating range 2.3 V to 3.6 V, with ICC of 40 µA max; the data I/O output high level tracks VCC."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Pin numbers were assigned from the TOP VIEW pin-name listing and the TOP VIEW numbering sequence in ; 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