| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | DM74LS245 |  139Kb/6P | TRI-STATE Octal Bus Transceiver |
 National Semiconductor ... | DM74LS245N |  139Kb/6P | TRI-STATE Octal Bus Transceiver |
 National Semiconductor ... | DM74LS245WM |  139Kb/6P | TRI-STATE Octal Bus Transceiver |
 National Semiconductor ... | DM74LS240 |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM74LS240N |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
 National Semiconductor ... | DM74LS240N |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
 National Semiconductor ... | DM74LS240WM |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
 National Semiconductor ... | DM74LS241 |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
 National Semiconductor ... | DM74LS241 |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM74LS241N |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
 National Semiconductor ... | DM74LS241N |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM74LS241WM |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |