| 型号 | 制造商 | 描述 | 操作 |
| CD74HCT221EE4 [更多] | Texas Instruments | Monostable Multivibrator Hi-Spd CMOS Dual RoHS: Compliant | 搜索 |
| 型号 | 制造商 | 描述 | 操作 |
| CD74HCT221EE4 [更多] | Texas Instruments | Monostable Multivibrator Dual 16-Pin PDIP Tube - Rail/Tube (Alt: CD74HCT221EE4) RoHS: Compliant | 搜索 |