74VHCT257A(2004) 查看數據表（PDF） - STMicroelectronics

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比赛名单

74VHCT257A
(Rev.:2004)

QUAD 2 CHANNEL MULTIPLEXER (3-STATE)

STMicroelectronics 

74VHCT257A

Figure 6: Waveform - Propagation Delays For Non-inverting Conditions (f=1MHz; 50% duty cycle)

Figure 7: Waveform - Output Enable And Disable Time (f=1MHz; 50% duty cycle)

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