| 制造商 | 部件名 | 数据表 | 功能描述 |
 National Semiconductor ... | 74F545 |  166Kb/8P | Octal Bidirectional Transceiver with TRI-STATEE Outputs |
 National Semiconductor ... | 74F545PC |  166Kb/8P | Octal Bidirectional Transceiver with TRI-STATEE Outputs |
 National Semiconductor ... | 74F545SC |  166Kb/8P | Octal Bidirectional Transceiver with TRI-STATEE Outputs |
 National Semiconductor ... | 74F545SJ |  166Kb/8P | Octal Bidirectional Transceiver with TRI-STATEE Outputs |
 National Semiconductor ... | 74F540 |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 74F540PC |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 74F540SC |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 74F540SJ |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 74F541PC |  166Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |