| Manufacturer | Part Number | Description |
|---|---|---|
| Parallax | SX28AC | Configurable Communications Controllers |
| SCENIX | SX28AC | (SXxxxx) Configurable Communications Controllers |
| Ubicom | SX28AC | (SX20AC / SX28AC) Configurable Communications Controllers |
| SCENIX | SX28AC75 | (SXxxxx) Configurable Communications Controllers |
| Ubicom | SX20AC | (SX20AC / SX28AC) Configurable Communications Controllers |
