| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 | 
|---|
| 1 | SP331 | Programmable RS-232/RS-485 Transceiver | 173K |   |   | 
| 2 | SP331 | Programmable Dual RS-232/RS-485 Transceiver | 192K |   |   | 
| 3 | SP331CT | Programmable RS-232/RS-485 Transceiver | 173K |   |   | 
| 4 | SP331CT | Programmable Dual RS-232/RS-485 Transceiver | 192K |   |   | 
| 5 | SP331CT/TR | Programmable Dual RS-232/RS-485 Transceiver | 192K |   |   | 
| 6 | SP331ET | Programmable RS-232/RS-485 Transceiver | 173K |   |   | 
| 7 | SP331ET | Programmable Dual RS-232/RS-485 Transceiver | 192K |   |   | 
| 8 | SP331ET/TR | Programmable Dual RS-232/RS-485 Transceiver | 192K |   |   | 
| 9 | SP331K | Ceramic Capacitors | 206K |   |   |