| Nr. | Nome da parte | Descrição | Fabricante |
| 81921 | 54AC253D | Multiplexer 4-Input duplo com saídas TRI-STATE | National Semiconductor |
| 81922 | 54AC253D | Multiplexer 4-Input duplo com saídas TRI-STATE | National Semiconductor |
| 81923 | 54AC253F | Multiplexer 4-Input duplo com saídas TRI-STATE | National Semiconductor |
| 81924 | 54AC253F | Multiplexer 4-Input duplo com saídas TRI-STATE | National Semiconductor |
| 81925 | 54AC253F | Multiplexer 4-Input duplo com saídas TRI-STATE | National Semiconductor |
| 81926 | 54AC253L | Multiplexer 4-Input duplo com saídas TRI-STATE | National Semiconductor |
| 81927 | 54AC253L | Multiplexer 4-Input duplo com saídas TRI-STATE | National Semiconductor |
| 81928 | 54AC253L | Multiplexer 4-Input duplo com saídas TRI-STATE | National Semiconductor |
| 81929 | 54AC257 | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81930 | 54AC257F | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81931 | 54AC257F | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81932 | 54AC257F | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81933 | 54AC257L | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81934 | 54AC257L | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81935 | 54AC257L | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81936 | 54AC257MDA | Quad Multiplexer 2-Input com saídas tri-state | National Semiconductor |
| 81937 | 54AC258 | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81938 | 54AC258D | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81939 | 54AC258D | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81940 | 54AC258D | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81941 | 54AC258DMQB | Multiplexer Input Do Quad 2 Com TRI - Saídas do ESTADO | National Semiconductor |
| 81942 | 54AC258DMQB | Multiplexer Input Do Quad 2 Com TRI - Saídas do ESTADO | National Semiconductor |
| 81943 | 54AC258DMQB | Multiplexer Input Do Quad 2 Com TRI - Saídas do ESTADO | National Semiconductor |
| 81944 | 54AC258F | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81945 | 54AC258F | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81946 | 54AC258F | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81947 | 54AC258FMQB | Multiplexer Input Do Quad 2 Com TRI - Saídas do ESTADO | National Semiconductor |
| 81948 | 54AC258FMQB | Multiplexer Input Do Quad 2 Com TRI - Saídas do ESTADO | National Semiconductor |
| 81949 | 54AC258FMQB | Multiplexer Input Do Quad 2 Com TRI - Saídas do ESTADO | National Semiconductor |
| 81950 | 54AC258L | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81951 | 54AC258L | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81952 | 54AC258L | Multiplexer do quad 2-Input com saídas TRI-STATE | National Semiconductor |
| 81953 | 54AC258LMQB | Multiplexer Input Do Quad 2 Com TRI - Saídas do ESTADO | National Semiconductor |
| 81954 | 54AC258LMQB | Multiplexer Input Do Quad 2 Com TRI - Saídas do ESTADO | National Semiconductor |
| 81955 | 54AC258LMQB | Multiplexer Input Do Quad 2 Com TRI - Saídas do ESTADO | National Semiconductor |
| 81956 | 54AC273 | Flip-flop Octal De D | National Semiconductor |
| 81957 | 54AC273 | Rad-Duro Octal D-Type Flip-Flop Com Limpar | ST Microelectronics |
| 81958 | 54AC273D | Flip-flop Octal De D | National Semiconductor |
| 81959 | 54AC273D | Flip-flop Octal De D | National Semiconductor |
| 81960 | 54AC273D | Flip-flop Octal De D | National Semiconductor |
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