SL74HC251 查看數據表（PDF） - System Logic Semiconductor

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SL74HC251

8-Input Data Selector/Multiplexer with 3-State Outputs

System Logic Semiconductor 

SL74HC251

Figure 3. Switching Waveforms

Figure 4. Switching Waveforms

Figure 5. Test Circuit

Figure 6.Test Circuit

EXPANDED LOGIC DIAGRAM

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System Logic

Semiconductor

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