| 型号 | 制造商 | 描述 | 操作 |
| SN54LS197J [更多] | Texas Instruments | Counter, Up, 4 Bit Binary, 14 Pin, Ceramic, DIP
| 搜索 |
| SN54LS197J [更多] | Texas Instruments | Counter, Up, 4 Bit Binary, 14 Pin, Ceramic, DIP
| 搜索 |
