| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | DS89C387 |  158Kb/10P | Twelve Channel CMOS Differential Line Driver |
| DS89C387 |  304Kb/12P | Twelve Channel CMOS Differential Line Driver |
 National Semiconductor ... | DS89C387TMEA |  158Kb/10P | Twelve Channel CMOS Differential Line Driver |
| DS89C387TMEA |  304Kb/12P | Twelve Channel CMOS Differential Line Driver |
| DS89C387TMEA |  317Kb/12P | DS89C387 Twelve Channel CMOS Differential Line Driver |
 National Semiconductor ... | DS89C387_06NNN |  304Kb/12P | Twelve Channel CMOS Differential Line Driver |
 National Semiconductor ... | DS89C386 |  156Kb/ 10P | Twelve Channel CMOS Differential Line Receiver |
| DS89C386TMEA |  156Kb/ 10P | Twelve Channel CMOS Differential Line Receiver |
| DS89C386TMEA |  570Kb/ 10P | Twelve Channel CMOS Differential Line Receiver |
 National Semiconductor ... | DS89C387TMEA |  158Kb/ 10P | Twelve Channel CMOS Differential Line Driver |
| DS89C387TMEA |  304Kb/ 12P | Twelve Channel CMOS Differential Line Driver |
| DS89C387TMEA |  317Kb/ 12P | DS89C387 Twelve Channel CMOS Differential Line Driver |
 National Semiconductor ... | DS89C387_06NNN |  304Kb/ 12P | Twelve Channel CMOS Differential Line Driver |
 National Semiconductor ... | DS89C21 |  78Kb/ 6P | Differential CMOS Line Driver and Receiver Pair |
 National Semiconductor ... | DS89C21TM |  78Kb/ 6P | Differential CMOS Line Driver and Receiver Pair |