| 型号 | 制造商 | 描述 | 操作 |
| NE556NE4 [更多] | Texas Instruments | Timers & Support Products DUAL PRECISION TIMER RoHS: Compliant | 搜索 |
| 型号 | 制造商 | 描述 | 操作 |
| NE556NE4 [更多] | Texas Instruments | Standard Timer Dual 14-Pin PDIP Tube - Rail/Tube (Alt: NE556NE4) RoHS: Compliant | 搜索 |
