| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 54F545DM |  166Kb/8P | Octal Bidirectional Transceiver with TRI-STATEE Outputs |
 National Semiconductor ... | 54F545FM |  166Kb/ 8P | Octal Bidirectional Transceiver with TRI-STATEE Outputs |
| 54F545LM |  166Kb/ 8P | Octal Bidirectional Transceiver with TRI-STATEE Outputs |
| 54F540 |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54F540DM |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54F540FM |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54F540LM |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54F541 |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54F541DM |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54F541FM |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54F541LM |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54F544 |  186Kb/ 10P | Octal Registered Transceiver |
| 54F544DM |  186Kb/ 10P | Octal Registered Transceiver |
| 54F544DMQB |  186Kb/ 10P | Octal Registered Transceiver |
| 54F544FM |  186Kb/ 10P | Octal Registered Transceiver |
| 54F544FMQB |  186Kb/ 10P | Octal Registered Transceiver |
| 54F544LM |  186Kb/ 10P | Octal Registered Transceiver |
| 54F544LMQB |  186Kb/ 10P | Octal Registered Transceiver |
| 54F544SDM |  186Kb/ 10P | Octal Registered Transceiver |
| 54F544SDMQB |  186Kb/ 10P | Octal Registered Transceiver |
| 54F545 |  166Kb/ 8P | Octal Bidirectional Transceiver with TRI-STATEE Outputs |