74VHC74TTR(2004) データシートの表示（PDF） - STMicroelectronics

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74VHC74TTR
(Rev.:2004)

DUAL D-TYPE FLIP FLOP WITH PRESET AND CLEAR

STMicroelectronics 

74VHC74

Figure 4: Test Circuit

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

RT = ZOUT of pulse generator (typically 50Ω)

Figure 5: Waveform - Propagation Delays, Setup And Hold Times (f=1MHz; 50% duty cycle)

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