| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 | 
|---|
| 1 | IN74HCT20 | DUAL 4-INPUT NAND GATE High-Performance Silicon-Gate CMOS | 124K |   |   | 
| 2 | IN74HCT20A | Dual 4-Input NAND Gate | 184K |   |   | 
| 3 | IN74HCT20AD | Dual 4-Input NAND Gate | 184K |   |   | 
| 4 | IN74HCT20AN | Dual 4-Input NAND Gate | 184K |   |   | 
| 5 | IN74HCT20D | DUAL 4-INPUT NAND GATE High-Performance Silicon-Gate CMOS | 124K |   |   | 
| 6 | IN74HCT20N | DUAL 4-INPUT NAND GATE High-Performance Silicon-Gate CMOS | 124K |   |   |