| производитель | номер детали | датащи | подробное описание детали |
 National Semiconductor ... | TP3420AV309 |  84Kb/ 3P | Engineering Project Manager |
 National Semiconductor ... | TP3420AJ |  524Kb/ 32P | ISDN S/T Interface Device |
| TP3420AN |  524Kb/ 32P | ISDN S/T Interface Device |
| TP3420AV |  524Kb/ 32P | ISDN S/T Interface Device |
 National Semiconductor ... | TP3420A |  524Kb/ 32P | ISDN S/T Interface Device |
 National Semiconductor ... | TP3421 |  816Kb/ 18P | ISDN S / T INTERFACE DEVICE WITH GCI ( GENERAL CIRCUIT INTERFACE ) |
| TP3401 |  249Kb/ 16P | DASL Digital Adapter for Subscriber Loops |
 National Semiconductor ... | TP3402 |  249Kb/ 16P | DASL Digital Adapter for Subscriber Loops |
| TP3403 |  249Kb/ 16P | DASL Digital Adapter for Subscriber Loops |