SL74HCT20D и другие
| Компонент | Описание | Производитель | |
| SL74HCT20 | Dual 4-Input NAND Gate(High-Performance Silicon-Gate CMOS) |
System Logic Semiconductor |
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| SL74HCT20D | Dual 4-Input NAND Gate(High-Performance Silicon-Gate CMOS) |
System Logic Semiconductor |
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| SL74HCT20N | Dual 4-Input NAND Gate(High-Performance Silicon-Gate CMOS) |
System Logic Semiconductor |
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