| 制造商 | 部件名 | 数据表 | 功能描述 |
 National Semiconductor ... | 54LS295A |  117Kb/4P | 4-BIT SHIFT REGISTER WITH TRI-STATE OUTPUTS |
| 54LS295ADMQB |  117Kb/4P | 4-BIT SHIFT REGISTER WITH TRI-STATE OUTPUTS |
| 54LS295AFMQB |  117Kb/4P | 4-BIT SHIFT REGISTER WITH TRI-STATE OUTPUTS |
| 54LS298 |  84Kb/3P | QUAD 2-PORT REGISTER MULTIPLEXER WITH STORAGE |
| 54LS298DMQB |  84Kb/3P | QUAD 2-PORT REGISTER MULTIPLEXER WITH STORAGE |
| 54LS298FMQB |  84Kb/3P | QUAD 2-PORT REGISTER MULTIPLEXER WITH STORAGE |
| 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 |
 National Semiconductor ... | 54LS22 |  50Kb/3P | DUAL 4-INPUT NAND GATE (WITH OPEN-COLLECTOR OUTPUT) |
| 54LS22DMQB |  50Kb/3P | DUAL 4-INPUT NAND GATE (WITH OPEN-COLLECTOR OUTPUT) |