English
Language : 

74LCX244MTR Datasheet, PDF (5/9 Pages) STMicroelectronics – LOW COLTAGE CMOS OCTAL BUS BUFFER (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS
TEST CIRCUIT
74LCX244
TEST
tPLH, tPHL
tPZL, tPLZ
tPZH, tPHZ
CL = 50 pF or equivalent (includes jig and probe capacitance)
RL = R1 = 500Ω or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
WAVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
SWIT CH
Open
6V
GND
5/9