# SN74CB3T3306DCUR

**Texas Instruments** · Analog Switches, Multiplexers · VSSOP-8-0.5mm

SN74CB3T3306DCUR from Texas Instruments, in a VSSOP-8-0.5mm. 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 enable for switch 1 that controls connection between 1A and 1B terminals when low. |
| 2 | 1A | bidirectional | Switch 1 A terminal providing bidirectional data I/O with 0-5V signaling level support. |
| 3 | 1B | bidirectional | Switch 1 B terminal providing bidirectional data I/O with 0-5V signaling level support. |
| 4 | GND | power_in | Ground reference pin at 0V. |
| 5 | 2A | bidirectional | Switch 2 A terminal providing bidirectional data I/O with 0-5V signaling level support. |
| 6 | 2B | bidirectional | Switch 2 B terminal providing bidirectional data I/O with 0-5V signaling level support. |
| 7 | 2OE | input | Active-low enable for switch 2 that controls connection between 2A and 2B terminals when low. |
| 8 | VCC | power_out | Supply voltage pin with recommended operating range 2.3V to 3.6V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.5mm |
| Category | Interface |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `SN74CB3T3306DCUR`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.5mm (KiCad packages3D, STEP)
- 3D model files: `sn74cb3t3306dcur-etched.step` / `sn74cb3t3306dcur-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cb3t3306dcur.step` / `sn74cb3t3306dcur.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/sn74cb3t3306) (23 pp, sha256 `031e6d810f30687b`, retrieved 2026-10-07, 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/sn74cb3t3306dcur-datasheet.pdf)