# SN74CBTLV3126PW

**Texas Instruments** · Signal Switches, Multiplexers, Decoders · TSSOP-14

SN74CBTLV3126PW from Texas Instruments, in a TSSOP-14. 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, active high, for channel 1 FET switch. |
| 2 | 1A | bidirectional | Channel 1 data I/O with 5Ω switch resistance. |
| 3 | 1B | bidirectional | Channel 1 data I/O with 5Ω switch resistance. |
| 4 | 2OE | input | Output enable, active high, for channel 2 FET switch. |
| 5 | 2A | bidirectional | Channel 2 data I/O with 5Ω switch resistance. |
| 6 | 2B | bidirectional | Channel 2 data I/O with 5Ω switch resistance. |
| 7 | GND | power_in | Ground. |
| 8 | 3B | bidirectional | Channel 3 data I/O with 5Ω switch resistance. |
| 9 | 3A | bidirectional | Channel 3 data I/O with 5Ω switch resistance. |
| 10 | 3OE | input | Output enable, active high, for channel 3 FET switch. |
| 11 | 4B | bidirectional | Channel 4 data I/O with 5Ω switch resistance. |
| 12 | 4A | bidirectional | Channel 4 data I/O with 5Ω switch resistance. |
| 13 | 4OE | input | Output enable, active high, for channel 4 FET switch. |
| 14 | VCC | power_in | Power supply, 2.3 to 3.6 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Logic |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `SN74CBTLV3126PW`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `sn74cbtlv3126pw-etched.step` / `sn74cbtlv3126pw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cbtlv3126pw.step` / `sn74cbtlv3126pw.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/sn74cbtlv3126.pdf) (37 pp, sha256 `0bdd837eefe9d4f0`, retrieved 2026-10-07, 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/sn74cbtlv3126pw-datasheet.pdf)