| 155921 | 74ACTQ16646 | 16-Bit Transceiver/Register with 3-STATE Outputs | Fairchild Semiconductor |
| 155922 | 74ACTQ16646 | 16-Bit Transceiver/Register with TRI-STATE Outputs | National Semiconductor |
| 155923 | 74ACTQ16646CW | 16-Bit Transceiver/Register with 3-STATE Outputs | Fairchild Semiconductor |
| 155924 | 74ACTQ16646MTD | 16-Bit Transceiver/Register with 3-STATE Outputs | Fairchild Semiconductor |
| 155925 | 74ACTQ16646MTDX | 16-Bit Transceiver/Register with 3-STATE Outputs | Fairchild Semiconductor |
| 155926 | 74ACTQ16646SSC | 16-Bit Transceiver/Register with 3-STATE Outputs | Fairchild Semiconductor |
| 155927 | 74ACTQ16646SSCX | 16-Bit Transceiver/Register with 3-STATE Outputs | Fairchild Semiconductor |
| 155928 | 74ACTQ18823 | 18-Bit D-Type Flip-Flop with 3-STATE Outputs | Fairchild Semiconductor |
| 155929 | 74ACTQ18823 | 18-Bit D Flip-Flop with TRI-STATE Outputs | National Semiconductor |
| 155930 | 74ACTQ18823CW | 18-Bit D Flip-Flop with 3-STATE Outputs | Fairchild Semiconductor |
| 155931 | 74ACTQ18823MTD | 18-Bit D Flip-Flop with 3-STATE Outputs | Fairchild Semiconductor |
| 155932 | 74ACTQ18823MTDX | 18-Bit D Flip-Flop with 3-STATE Outputs | Fairchild Semiconductor |
| 155933 | 74ACTQ18823SSC | 18-Bit D Flip-Flop with 3-STATE Outputs | Fairchild Semiconductor |
| 155934 | 74ACTQ18823SSCX | 18-Bit D Flip-Flop with 3-STATE Outputs | Fairchild Semiconductor |
| 155935 | 74ACTQ18825 | 18-Bit Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155936 | 74ACTQ18825 | 18-Bit Inverting Buffer/Line Driver with TRI-STATE Outputs | National Semiconductor |
| 155937 | 74ACTQ18825CW | 18-Bit Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155938 | 74ACTQ18825MTD | 18-Bit Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155939 | 74ACTQ18825MTDX | 18-Bit Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
|
| 155940 | 74ACTQ18825SSC | 18-Bit Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155941 | 74ACTQ18825SSCX | 18-Bit Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155942 | 74ACTQ240 | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155943 | 74ACTQ240CW | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155944 | 74ACTQ240PC | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155945 | 74ACTQ240QSC | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155946 | 74ACTQ240QSCX | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155947 | 74ACTQ240SC | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155948 | 74ACTQ240SCX | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155949 | 74ACTQ240SJ | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155950 | 74ACTQ240SJX | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155951 | 74ACTQ244 | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155952 | 74ACTQ244 | Quiet Series Octal Buffer/Line Driver w/TRI-STATE Outputs | National Semiconductor |
| 155953 | 74ACTQ244CW | Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
| 155954 | 74ACTQ244D | Quiet Seres Octal Buffer/Line Driver with TRI-STATE Outputs | National Semiconductor |
| 155955 | 74ACTQ244DCQR | Quiet series octal buffer/line driver with TRI-STATE outputs. Commercial grade device with burn-in. | National Semiconductor |
| 155956 | 74ACTQ244DCX | Quiet series octal buffer/line driver with TRI-STATE outputs. Devices shipped in 13 inches reels. | National Semiconductor |
| 155957 | 74ACTQ244F | Quiet Seres Octal Buffer/Line Driver with TRI-STATE Outputs | National Semiconductor |
| 155958 | 74ACTQ244FCQR | Quiet series octal buffer/line driver with TRI-STATE outputs. Commercial grade device with burn-in. | National Semiconductor |
| 155959 | 74ACTQ244FCX | Quiet series octal buffer/line driver with TRI-STATE outputs. Devices shipped in 13 inches reels. | National Semiconductor |
| 155960 | 74ACTQ244L | Quiet Seres Octal Buffer/Line Driver with TRI-STATE Outputs | National Semiconductor |
