74VHCT139A(2004) データシートの表示（PDF） - STMicroelectronics

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74VHCT139A
(Rev.:2004)

DUAL 2 TO 4 DECODER/DEMULTIPLEXER

STMicroelectronics 

Figure 4: Test Circuit

74VHCT139A

CL =15/50pF or equivalent (includes jig and probe capacitance)

RT = ZOUT of pulse generator (typically 50Ω)

Figure 5: Waveform - Propagation Delays For Inverting Outputs (f=1MHz; 50% duty cycle)

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