
TEST CIRCUIT
74VHCT126A
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)
SWIT CH
Open
VCC
GND
5/9