| 제조업체 | 부품명 | 데이터시트 | 상세설명 |
 National Semiconductor ... | PC16552C |  827Kb/22P | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
| PC16552CV |  827Kb/22P | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
 National Semiconductor ... | PC16552CV |  827Kb/ 22P | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
 National Semiconductor ... | PC16552D |  291Kb/ 21P | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
| PC16552DV |  291Kb/ 21P | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
 National Semiconductor ... | PC16550D |  344Kb/ 22P | PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs |
 National Semiconductor ... | PC16550DN |  344Kb/ 22P | PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs |
 National Semiconductor ... | PC16550DV |  344Kb/ 22P | PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs |
 National Semiconductor ... | PC16550DVEF |  344Kb/ 22P | PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs |
 National Semiconductor ... | PC16550DVX |  84Kb/ 3P | Engineering Project Manager |