74AC161 데이터 시트보기 (PDF) - STMicroelectronics

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74AC161

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

STMicroelectronics 

TEST CIRCUIT

74AC161

CL = 50 pF or equivalent (includes jigand probe capacitance)

RL = R1 = 500Ω orequivalent

RT = ZOUT of pulse generator (typically 50Ω)

WAVEFORM 1: PROPAGATION DELAYS, COUNT MODE (f=1MHz; 50% duty cycle)

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