74VHC126M データシートの表示（PDF） - STMicroelectronics

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74VHC126M

QUAD BUS BUFFERS (3-STATE)

STMicroelectronics 

TEST CIRCUIT

74VHC126

TEST

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

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

RL = R1 = 1KΩ or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

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

SWITCH

Open

VCC

GND

5/9

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