MC74VHCT540A Datasheet, PDF (4/8 Pages) ON Semiconductor – Octal Bus Buffer Inverting

MC74VHCT540A
A
1.5V
tPHL
Y
1.5V
Figure 1.
SWITCHING WAVEFORMS
3.0V
OE1 or OE2
GND
tPLH
Y
VOH
1.5V
tPZL tPLZ
1.5V
tPZH tPHZ
3.0V
50%
GND
HIGH
IMPEDANCE
VOL +0.3V
VOL
Y
1.5V
Figure 2.
VOH –0.3V
HIGH
IMPEDANCE
DEVICE
UNDER
TEST
TEST
POINT
OUTPUT
CL*
TEST CIRCUITS
DEVICE
UNDER
TEST
TEST
POINT
OUTPUT
1kΩ
CL*
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
*Includes all probe and jig capacitance
Figure 3.
*Includes all probe and jig capacitance
Figure 4.
MOTOROLA
4
VHC Data – Advanced CMOS Logic
DL203 — Rev 2