74VHCT139AM データシートの表示（PDF） - STMicroelectronics

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74VHCT139AM

DUAL 2 TO 4 DECODER/DEMULTIPLEXER

STMicroelectronics 

TEST CIRCUIT

74VHCT139A

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

RT = ZOUT of pulse generator (typically 50Ω)

WAVEFORM 1 : PROPAGATION DELAYS FOR INVERTING OUTPUTS (f=1MHz; 50% duty cycle)

5/9

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