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SN74CBT3383CPWR
Public Made by Adomby adom
Texas Instruments Signal Switches / Encoders & Decoders / Multiplexers, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74CBT3383CPWR
Texas Instruments · Signal Switches / Encoders & Decoders / Multiplexers · TSSOP-24
SN74CBT3383CPWR 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 | BE | input | Active-low input enable pin; when BE is low the A and B ports are connected, and when BE is high the A and B ports are disconnected (high-impedance). |
| 2 | 1B1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 3 | 1A1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 4 | 1A2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 5 | 1B2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 6 | 2B1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 7 | 2A1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 8 | 2A2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 9 | 2B2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 10 | 3B1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 11 | 3A1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 12 | GND | power_in | Ground pin. |
| 13 | BX | input | Select pin that controls the bus-exchange data path; when BX is low xA1 is connected to xB1 and xA2 to xB2, and when BX is high xA1 is connected to xB2 and xA2 to xB1. |
| 14 | 3A2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 15 | 3B2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 16 | 4B1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 17 | 4A1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 18 | 4A2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 19 | 4B2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 20 | 5B1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 21 | 5A1 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 22 | 5A2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 23 | 5B2 | bidirectional | I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V. |
| 24 | VCC | power_in | Power supply pin; operating range is 4 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-24 |
| Category | Logic ICs |
| Pins | 24 |
CAD (KiCad official)
- Symbol:
SN74CBT3383CPWR - Footprint:
Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm - 3D model: TSSOP-24 (KiCad packages3D, STEP)
- 3D model files:
sn74cbt3383cpwr-etched.step/sn74cbt3383cpwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cbt3383cpwr.step/sn74cbt3383cpwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
7b02186114b4d4e0, retrieved 2026-10-08, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).