# SN74CBTLV3126DR

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

SN74CBTLV3126DR from Texas Instruments, in a SOIC-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. |
| 2 | 1A | bidirectional | Channel 1 input or output. |
| 3 | 1B | bidirectional | Channel 1 input or output. |
| 4 | 2OE | input | Output enable, active high. |
| 5 | 2A | bidirectional | Channel 2 input or output. |
| 6 | 2B | bidirectional | Channel 2 input or output. |
| 7 | GND | power_in | Ground. |
| 8 | 3B | bidirectional | Channel 3 input or output. |
| 9 | 3A | bidirectional | Channel 3 input or output. |
| 10 | 3OE | input | Output enable, active high. |
| 11 | 4B | bidirectional | Channel 4 input or output. |
| 12 | 4A | bidirectional | Channel 4 input or output. |
| 13 | 4OE | input | Output enable, active high. |
| 14 | VCC | power_in | Power supply. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SN74CBTLV3126DR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `sn74cbtlv3126dr-etched.step` / `sn74cbtlv3126dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cbtlv3126dr.step` / `sn74cbtlv3126dr.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 `07f3926b83007195`, retrieved 2026-09-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/sn74cbtlv3126dr-datasheet.pdf)