| 制造商 | 部件名 | 数据表 | 功能描述 |
 National Semiconductor ... | 54LS27FMQB |  58Kb/2P | TRIPLE 3-INPUT NOR GATES |
 National Semiconductor ... | 54LS27FMQB |  58Kb/ 2P | TRIPLE 3-INPUT NOR GATES |
| 54LS273 |  78Kb/ 3P | 8-BIT REGISTER WITH CLEAR |
| 54LS273DMQB |  78Kb/ 3P | 8-BIT REGISTER WITH CLEAR |
| 54LS273FMQB |  78Kb/ 3P | 8-BIT REGISTER WITH CLEAR |
| 54LS273LMQB |  78Kb/ 3P | 8-BIT REGISTER WITH CLEAR |
| 54LS279 |  137Kb/ 6P | Quad S-R Latches |
 National Semiconductor ... | 54LS279DMQB |  137Kb/ 6P | Quad S-R Latches |
| 54LS279FMQB |  137Kb/ 6P | Quad S-R Latches |
| 54LS279LMQB |  137Kb/ 6P | Quad S-R Latches |
 National Semiconductor ... | 54LS27DMQB |  58Kb/ 2P | TRIPLE 3-INPUT NOR GATES |
| 54LS27LMQB |  58Kb/ 2P | TRIPLE 3-INPUT NOR GATES |
| 54LS20 |  124Kb/ 6P | Dual 4-Input NAND Gates |
 National Semiconductor ... | 54LS20DMQB |  124Kb/ 6P | Dual 4-Input NAND Gates |
| 54LS20FMQB |  124Kb/ 6P | Dual 4-Input NAND Gates |
 National Semiconductor ... | 54LS20LMQB |  124Kb/ 6P | Dual 4-Input NAND Gates |
| 54LS21 |  120Kb/ 6P | Dual 4-Input AND Gates |