| Nr. | Nombre de la Parte | Descripción | Fabricante |
| 372641 | DM74LS20M | Puertas Duales De 4-Input NAND | National Semiconductor |
| 372642 | DM74LS20M | Puerta Dual De 4-Input NAND | Fairchild Semiconductor |
| 372643 | DM74LS20M | Puertas Duales De 4-Input NAND | National Semiconductor |
| 372644 | DM74LS20M | Puerta Dual De 4-Input NAND | Fairchild Semiconductor |
| 372645 | DM74LS20M | Puertas Duales De 4-Input NAND | National Semiconductor |
| 372646 | DM74LS20N | Puerta Dual De 4-Input NAND | Fairchild Semiconductor |
| 372647 | DM74LS20N | Puertas Duales De 4-Input NAND | National Semiconductor |
| 372648 | DM74LS20N | Puerta Dual De 4-Input NAND | Fairchild Semiconductor |
| 372649 | DM74LS20N | Puertas Duales De 4-Input NAND | National Semiconductor |
| 372650 | DM74LS20N | Puerta Dual De 4-Input NAND | Fairchild Semiconductor |
| 372651 | DM74LS20N | Puertas Duales De 4-Input NAND | National Semiconductor |
| 372652 | DM74LS21 | 4-Input Dual Y Puerta | National Semiconductor |
| 372653 | DM74LS22 | Puerta dual de 4-Input NAND con salidas de colector abierto | National Semiconductor |
| 372654 | DM74LS221 | Non-Retriggerable dual paso a paso con salidas claras y complementarias | National Semiconductor |
| 372655 | DM74LS221 | Non-Retriggerable dual paso a paso con salidas claras y complementarias | Fairchild Semiconductor |
| 372656 | DM74LS221CW | No Redisparable One-Shot dual con salidas claras y complementarias | Fairchild Semiconductor |
| 372657 | DM74LS221M | Non-Retriggerable dual paso a paso con salidas claras y complementarias | Fairchild Semiconductor |
| 372658 | DM74LS221M | Non-Retriggerable dual paso a paso con salidas claras y complementarias | Fairchild Semiconductor |
| 372659 | DM74LS221M | Non-Retriggerable dual paso a paso con salidas claras y complementarias | Fairchild Semiconductor |
| 372660 | DM74LS221M | 7 V, no redisparable one-shot doble con salida clara y complementaria | National Semiconductor |
| 372661 | DM74LS221MX | No Redisparable One-Shot dual con salidas claras y complementarias | Fairchild Semiconductor |
| 372662 | DM74LS221N | No Redisparable One-Shot dual con salidas claras y complementarias | Fairchild Semiconductor |
| 372663 | DM74LS221N | 7 V, no redisparable one-shot doble con salida clara y complementaria | National Semiconductor |
| 372664 | DM74LS221SJ | Non-Retriggerable dual paso a paso con salidas claras y complementarias | Fairchild Semiconductor |
| 372665 | DM74LS221SJ | Non-Retriggerable dual paso a paso con salidas claras y complementarias | Fairchild Semiconductor |
| 372666 | DM74LS221SJ | Non-Retriggerable dual paso a paso con salidas claras y complementarias | Fairchild Semiconductor |
| 372667 | DM74LS221SJX | No Redisparable One-Shot dual con salidas claras y complementarias | Fairchild Semiconductor |
| 372668 | DM74LS240 | Receptor De triple estado Octal De Buffer/Line Driver/Line (El Invertir) | National Semiconductor |
| 372669 | DM74LS240 | Receptor Octal De 3-state Buffer/Line Driver/Line | Fairchild Semiconductor |
| 372670 | DM74LS240CW | Octal 3-State Buffer / Line Driver / receptor de línea (inversor) | Fairchild Semiconductor |
| 372671 | DM74LS240N | Receptor Octal De 3-state Buffer/Line Driver/Line | Fairchild Semiconductor |
| 372672 | DM74LS240N | Receptores De triple estado Octales De Buffers/Line Drivers/Line | National Semiconductor |
| 372673 | DM74LS240N | Receptores De triple estado Octales De Buffers/Line Drivers/Line | National Semiconductor |
| 372674 | DM74LS240N | Receptor Octal De 3-state Buffer/Line Driver/Line | Fairchild Semiconductor |
| 372675 | DM74LS240N | Receptores De triple estado Octales De Buffers/Line Drivers/Line | National Semiconductor |
| 372676 | DM74LS240N | Receptores De triple estado Octales De Buffers/Line Drivers/Line | National Semiconductor |
| 372677 | DM74LS240N | Receptor Octal De 3-state Buffer/Line Driver/Line | Fairchild Semiconductor |
| 372678 | DM74LS240N | Receptores De triple estado Octales De Buffers/Line Drivers/Line | National Semiconductor |
| 372679 | DM74LS240N | Receptores De triple estado Octales De Buffers/Line Drivers/Line | National Semiconductor |
| 372680 | DM74LS240SJ | Receptor Octal De 3-state Buffer/Line Driver/Line | Fairchild Semiconductor |
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