| 制造商 | 部件名 | 数据表 | 功能描述 |
 National Semiconductor ... | DM54LS27 |  58Kb/2P | TRIPLE 3-INPUT NOR GATES |
| DM54LS273 |  142Kb/6P | 8-Bit Register with Clear |
| DM54LS273E |  142Kb/6P | 8-Bit Register with Clear |
| DM54LS273J |  142Kb/6P | 8-Bit Register with Clear |
| DM54LS273W |  142Kb/6P | 8-Bit Register with Clear |
 National Semiconductor ... | DM54LS279J |  137Kb/6P | Quad S-R Latches |
| DM54LS27J |  58Kb/2P | TRIPLE 3-INPUT NOR GATES |
| DM54LS27W |  58Kb/2P | TRIPLE 3-INPUT NOR GATES |
 National Semiconductor ... | DM54LS20J |  124Kb/ 6P | Dual 4-Input NAND Gates |
| DM54LS20W |  124Kb/ 6P | Dual 4-Input NAND Gates |
| DM54LS21 |  120Kb/ 6P | Dual 4-Input AND Gates |
| DM54LS240 |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS240 |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS240E |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS240J |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS240J |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS240W |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS240WM |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS241 |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS241 |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS241E |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS241J |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS241J |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS241W |  142Kb/ 6P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS241WM |  102Kb/ 3P | Octal TRI-STATE Buffers/Line Drivers/Line Receivers |
| DM54LS245 |  139Kb/ 6P | TRI-STATE Octal Bus Transceiver |
| DM54LS245J |  139Kb/ 6P | TRI-STATE Octal Bus Transceiver |