MC74VHC245 Datasheet, PDF (4/7 Pages) Motorola, Inc – Octal Bus Transceiver

MC74VHC245
A or B
tPLH
B or A
50%
50% VCC
Figure 1.
SWITCHING WAVEFORMS
VCC
GND
tPHL
DIR
OE
A or B
A or B
50% VCC
tPZL tPLZ
50% VCC
tPZH tPHZ
50% VCC
50%
50% VCC
VCC
GND
VCC
GND
HIGH
IMPEDANCE
VOL +0.3V
VOH –0.3V
HIGH
IMPEDANCE
Figure 2.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
TEST CIRCUITS
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 kΩ
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 1