M74HC126B1R(2001) データシートの表示（PDF） - STMicroelectronics

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M74HC126B1R
(Rev.:2001)

QUAD BUS BUFFER (3-STATE)

STMicroelectronics 

TEST CIRCUIT

M74HC126

TEST

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

CL = 50pF/150pF or equivalent (includes jig and probe capacitance)

R1 = 1KΩ or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

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

SWITCH

Open

VCC

GND

5/10

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