| 154121 | 74AC399CW | Quad 2-Port Register | Fairchild Semiconductor |
| 154122 | 74AC399PC | Quad 2-Port Register | Fairchild Semiconductor |
| 154123 | 74AC399SC | Quad 2-Port Register | Fairchild Semiconductor |
| 154124 | 74AC399SCX | Quad 2-Port Register | Fairchild Semiconductor |
| 154125 | 74AC520 | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154126 | 74AC520 | 8-Bit Identity Comparator | National Semiconductor |
| 154127 | 74AC520CW | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154128 | 74AC520PC | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154129 | 74AC520SC | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154130 | 74AC520SCX | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154131 | 74AC521 | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154132 | 74AC521 | 8-Bit Identity Comparator | National Semiconductor |
| 154133 | 74AC521CW | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154134 | 74AC521MTC | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154135 | 74AC521MTCX | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154136 | 74AC521PC | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154137 | 74AC521SC | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154138 | 74AC521SCX | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154139 | 74AC521SJ | 8-Bit Identity Comparator | Fairchild Semiconductor |
|
| 154140 | 74AC521SJX | 8-Bit Identity Comparator | Fairchild Semiconductor |
| 154141 | 74AC540 | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154142 | 74AC540 | Octal Buffer/Line Driver with TRI-STATE Outputs | National Semiconductor |
| 154143 | 74AC540CW | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154144 | 74AC540MTC | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154145 | 74AC540MTCX | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154146 | 74AC540PC | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154147 | 74AC540SC | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154148 | 74AC540SCX | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154149 | 74AC540SJ | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154150 | 74AC540SJX | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154151 | 74AC541 | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154152 | 74AC541 | Octal Buffer/Line Driver with TRI-STATE Outputs | National Semiconductor |
| 154153 | 74AC541 | OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) | SGS Thomson Microelectronics |
| 154154 | 74AC541 | OCTAL BS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED) | ST Microelectronics |
| 154155 | 74AC541B | OCTAL BS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED) | SGS Thomson Microelectronics |
| 154156 | 74AC541B | OCTAL BS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED) | ST Microelectronics |
| 154157 | 74AC541CW | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 154158 | 74AC541M | OCTAL BS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED) | SGS Thomson Microelectronics |
| 154159 | 74AC541M | OCTAL BS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED) | ST Microelectronics |
| 154160 | 74AC541MTC | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
