| 408481 | DM74LS20N | Dual 4-Input NAND Gates | National Semiconductor |
| 408482 | DM74LS21 | Dual 4-Input AND Gate | National Semiconductor |
| 408483 | DM74LS22 | Dual 4-Input NAND Gate with Open Collector Outputs | National Semiconductor |
| 408484 | DM74LS221 | Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs | Fairchild Semiconductor |
| 408485 | DM74LS221 | Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs | National Semiconductor |
| 408486 | DM74LS221CW | Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs | Fairchild Semiconductor |
| 408487 | DM74LS221M | Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs | Fairchild Semiconductor |
| 408488 | DM74LS221M | 7 V, dual non-retriggerable one-shot with clear and complementary output | National Semiconductor |
| 408489 | DM74LS221MX | Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs | Fairchild Semiconductor |
| 408490 | DM74LS221N | Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs | Fairchild Semiconductor |
| 408491 | DM74LS221N | 7 V, dual non-retriggerable one-shot with clear and complementary output | National Semiconductor |
| 408492 | DM74LS221SJ | Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs | Fairchild Semiconductor |
| 408493 | DM74LS221SJX | Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs | Fairchild Semiconductor |
| 408494 | DM74LS240 | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 408495 | DM74LS240 | Octal TRI-STATE Buffer/Line Driver/Line Receiver (Inverting) | National Semiconductor |
| 408496 | DM74LS240CW | Octal 3-STATE Buffer/Line Driver/Line Receiver (Inverting) | Fairchild Semiconductor |
| 408497 | DM74LS240N | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 408498 | DM74LS240N | Octal TRI-STATE Buffers/Line Drivers/Line Receivers | National Semiconductor |
| 408499 | DM74LS240N | Octal TRI-STATE Buffers/Line Drivers/Line Receivers | National Semiconductor |
|
| 408500 | DM74LS240SJ | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 408501 | DM74LS240SJX | Octal 3-STATE Buffer/Line Driver/Line Receiver (Inverting) | Fairchild Semiconductor |
| 408502 | DM74LS240WM | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 408503 | DM74LS240WM | Octal TRI-STATE Buffers/Line Drivers/Line Receivers | National Semiconductor |
| 408504 | DM74LS240WMX | Octal 3-STATE Buffer/Line Driver/Line Receiver (Inverting) | Fairchild Semiconductor |
| 408505 | DM74LS241 | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 408506 | DM74LS241 | Octal TRI-STATE Buffer/Line Driver/Line Receiver | National Semiconductor |
| 408507 | DM74LS241N | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 408508 | DM74LS241N | Octal TRI-STATE Buffers/Line Drivers/Line Receivers | National Semiconductor |
| 408509 | DM74LS241N | Octal TRI-STATE Buffers/Line Drivers/Line Receivers | National Semiconductor |
| 408510 | DM74LS241WM | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 408511 | DM74LS241WM | Octal TRI-STATE Buffers/Line Drivers/Line Receivers | National Semiconductor |
| 408512 | DM74LS241WMX | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 408513 | DM74LS243 | Quadruple Bus Transceiver | Fairchild Semiconductor |
| 408514 | DM74LS243 | Quadruple Bus Transceiver | National Semiconductor |
| 408515 | DM74LS243M | Quadruple Bus Transceiver | Fairchild Semiconductor |
| 408516 | DM74LS243MX | Quadruple Bus Transceiver | Fairchild Semiconductor |
| 408517 | DM74LS243N | Quadruple Bus Transceiver | Fairchild Semiconductor |
| 408518 | DM74LS243N | 7 V, quadruple bus transceiver | National Semiconductor |
| 408519 | DM74LS243WM | Quadruple Bus Transceiver | Fairchild Semiconductor |
| 408520 | DM74LS243WM | 7 V, quadruple bus transceiver | National Semiconductor |
