| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 74F646BSDMSAMX |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
 National Semiconductor ... | 74F646BSDMSAMQB |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSDMSACQB |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSDMSACX |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
 National Semiconductor ... | 74F646BSC |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSCQB |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSCX |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSMQB |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSMX |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
 National Semiconductor ... | 74F646BSPC |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSPCQB |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSPCX |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSPMQB |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSPMX |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BFCQB |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BFCX |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BFMQB |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BFMX |  216Kb/12P | Octal Transceiver/Register with TRI-STATE Outputs |