 | LTC1384CSW#PBF | 1150 | Linear Technology | 19+ | 18-SOIC（0.295"，7.50mm 宽） | | IC TXRX 5V RS232 LOW PWR 18-SOIC | 购买 |
| LTC1685IS8#PBF | 1567 | Linear Technology | 19+ | 8-SOIC（0.154"，3.90mm 宽） | | IC TXRX RS485 PREC DELAY 8-SOIC | 购买 |
| LTC1383IS#PBF | 1524 | Linear Technology | 19+ | 16-SOIC（0.154"，3.90mm 宽） | | IC TXRX 5V RS232 LOW PWR 16-SOIC | 购买 |
| LTC488CN#PBF | 1265 | Linear Technology | 19+ | 16-DIP（0.300"，7.62mm） | | IC LINE RCVR RS485 QUAD 16-DIP | 购买 |
| LTC1386IS#PBF | 1449 | Linear Technology | 19+ | 16-SOIC（0.154"，3.90mm 宽） | | IC TXRX 3.3V EIA/TIA-562 16-SOIC | 购买 |
| KSZ9021RNI | 2259 | Micrel Inc | 19+ | 48-VFQFN 裸露焊盘 | | IC TXRX 10/100/1000 SGL 48QFN | 购买 |
| LT1180AISW#PBF | 1375 | Linear Technology | 19+ | 18-SOIC（0.295"，7.50mm 宽） | | IC DRVR/RCVR RS232 5V DL 18SOIC | 购买 |
| ADM2484EBRWZ | 3414 | Analog Devices Inc | 19+ | 16-SOIC（0.295"，7.50mm 宽） | | IC TXRX RS485 ISO W/ESD 16SOIC | 购买 |
| LT1134ACSW#PBF | 1323 | Linear Technology | 19+ | 24-SOIC（0.295"，7.50mm 宽） | | IC 4DRV/4RCV RS232 5V 24-SOIC | 购买 |
| LT1134ACN#PBF | 1411 | Linear Technology | 19+ | 24-DIP（0.300"，7.62mm） | | IC 4DRV/4RCV RS232 5V 24-DIP | 购买 |
| LTC1385CG#PBF | 1250 | Linear Technology | 19+ | 20-SSOP（0.209"，5.30mm 宽） | | IC TXRX 3.3V EIA/TIA-562 20-SSOP | 购买 |
| LT1131ACSW#PBF | 1326 | Linear Technology | 19+ | 28-SOIC（0.295"，7.50mm 宽） | | IC 5DRV/4RCV RS232 5V 28-SOIC | 购买 |
| LT1132ACSW#PBF | 1300 | Linear Technology | 19+ | 24-SOIC（0.295"，7.50mm 宽） | | IC 5DRV/3RCV RS232 5V 24-SOIC | 购买 |
| LTC491IS#PBF | 1400 | Linear Technology | 19+ | 14-SOIC（0.154"，3.90mm 宽） | | IC TXRX RS485 LOW POWER 14-SOIC | 购买 |
| LTC486CSW#PBF | 1448 | Linear Technology | 19+ | 16-SOIC（0.295"，7.50mm 宽） | | IC DVR RS485 LOW PWR QUAD 16SOIC | 购买 |
| LTC1687CS#PBF | 1103 | Linear Technology | 19+ | 14-SOIC（0.154"，3.90mm 宽） | | IC TXRX RS485 PREC DELAY 14-SOIC | 购买 |
| LTC1387CSW#PBF | 1563 | Linear Technology | 19+ | 20-SOIC（0.295"，7.50mm 宽） | | IC TXRX RS232/RS485 5VSNGL20SOIC | 购买 |
| LTC1348CG#PBF | 1974 | Linear Technology | 19+ | 28-SSOP（0.209"，5.30mm 宽） | | IC TXRX 3.3V/5V RS232 28-SSOP | 购买 |
| LT1134AISW#PBF | 1267 | Linear Technology | 19+ | 24-SOIC（0.295"，7.50mm 宽） | | IC 4DRV/4RCV RS232 5V 24-SOIC | 购买 |
| LTC1348ISW#PBF | 1266 | Linear Technology | 19+ | 28-SOIC（0.295"，7.50mm 宽） | | IC TXRX 3.3V/5V RS232 28-SOIC | 购买 |
