| 型号 | 制造商 | 描述 | 操作 |
| DM74ALS21AN [更多] | Fairchild Semiconductor Corporation | AND Gate 2-Element 4-IN Bipolar 14-Pin PDIP Rail RoHS: Compliant | 搜索 |
| 型号 | 制造商 | 描述 | 操作 |
| DM74ALS21AN [更多] | National Semiconductor Corporation | Logic Circuit, Dual 4-Input AND, ALS-TTL, 14 Pin, Plastic, DIP | 搜索 |
| DM74ALS21AN [更多] | Fairchild Semiconductor Corporation | Logic Circuit, Dual 4-Input AND, ALS-TTL, 14 Pin, Plastic, DIP | 搜索 |