MC74VHC240 Motorola, MC74VHC240 Datasheet - Page 4

• Manufacturer Part Number: MC74VHC240
• Description: Octal Bus Buffer/Line Driver
• Manufacturer: Motorola

MC74VHC240
MOTOROLA
YA or YB
A or B
* Includes all probe and jig capacitance
t PHL
DEVICE
UNDER
50% V CC
TEST
Figure 3. Test Circuit
50%
Figure 1.
OUTPUT
TEST POINT
C L *
INPUT
t PLH
Figure 5. Input Equivalent Circuit
SWITCHING WAVEFORMS
V CC
GND
TEST CIRCUITS
4
OEA or OEB
YA or YB
YA or YB
DEVICE
UNDER
TEST
* Includes all probe and jig capacitance
OUTPUT
50%
50% V CC
50% V CC
Figure 4. Test Circuit
TEST POINT
t PZL
t PZH
Figure 2.
C L *
1 k
VHC Data – Advanced CMOS Logic
t PHZ
t PLZ
CONNECT TO V CC WHEN
TESTING t PLZ AND t PZL .
CONNECT TO GND WHEN
TESTING t PHZ AND t PZH .
V OL +0.3V
V OH –0.3V
DL203 — Rev 1
V CC
GND
HIGH
IMPEDANCE
HIGH
IMPEDANCE