2路4输入与门

Dual 4-input AND gate

The 74HC21 is a high-speed Si-gate CMOS device and is pin compatible with low-power Schottky TTL (LSTTL). The 74HC21 provide the 4-input AND function.

High Speed CMOS Logic Dual 4-Input AND Gate

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High-Speed CMOS Logic Dual 4-Input AND Gate

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High-Speed CMOS Logic Dual 4-Input AND Gate

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High-Speed CMOS Logic Dual 4-Input AND Gate

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