English
Language : 

MC74VHCT125A_11 Datasheet, PDF (5/8 Pages) ON Semiconductor – Quad Bus Buffer with 3−State Control Inputs
MC74VHCT125A
SWITCHING WAVEFORMS
A
tPLH
Y
1.5V
1.5V
Figure 1.
3.0V
GND
tPHL
VOH
VOL
3.0V
OE
1.5V
GND
tPZL tPLZ
HIGH
Y
1.5V
IMPEDANCE
tPZH tPHZ
VOL + 0.3V
VOH - 0.3V
Y
1.5V
HIGH
IMPEDANCE
Figure 2.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 3. Test Circuit
DEVICE
UNDER
TEST
TEST POINT
1 kW
OUTPUT
CL *
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
*Includes all probe and jig capacitance
Figure 4. Test Circuit
http://onsemi.com
5