| 制造商 | 部件名 | 数据表 | 功能描述 |
 National Semiconductor ... | 54LS260DMQB |  52Kb/2P | Dual 5-Input NOR Gate |
 National Semiconductor ... | 54LS260FMQB |  52Kb/2P | Dual 5-Input NOR Gate |
| 54LS260LMQB |  52Kb/2P | Dual 5-Input NOR Gate |
 National Semiconductor ... | 54LS260 |  52Kb/2P | Dual 5-Input NOR Gate |
| 54LS266 |  54Kb/2P | QUAD 2-INPUT EXCLUSIVE-NOR GATE WITH OPEN-COLLECTOR OUTPUTS |
| 54LS266DMQB |  54Kb/2P | QUAD 2-INPUT EXCLUSIVE-NOR GATE WITH OPEN-COLLECTOR OUTPUTS |
| 54LS266FMQB |  54Kb/2P | QUAD 2-INPUT EXCLUSIVE-NOR GATE WITH OPEN-COLLECTOR OUTPUTS |
| 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 |
 National Semiconductor ... | 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) |