| PTN3331 | Microcontroller |
| PTN3341 | Microcontroller |
| PTN3310 | Level Shifter |
| PTN3311 | Level Shifter |
| PTN3311 | Level Shifter |
| PTN3311 | Level Shifter |
| PTN3310 | Level Shifter |
| PTN3310 | Level Shifter |
| PTN3331 | RS 232, 422, 485, 644, X21, V35 |
| PTN3341 | RS 232, 422, 485, 644, X21, V35 |
| PTN3341 | RS 232, 422, 485, 644, X21, V35 |
| PTN3331 | RS 232, 422, 485, 644, X21, V35 |
| PTN3332 | RS 232, 422, 485, 644, X21, V35 |
| PTN3342 | RS 232, 422, 485, 644, X21, V35 |
| PTN3341 | RS 232, 422, 485, 644, X21, V35 |
| PTN3331 | RS 232, 422, 485, 644, X21, V35 |
| PTN3331 | RS 232, 422, 485, 644, X21, V35 |
| PTN3341 | RS 232, 422, 485, 644, X21, V35 |