| 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 |