mc74vhc244 ON Semiconductor, mc74vhc244 Datasheet - Page 5

• Manufacturer Part Number: mc74vhc244
• Description: Octal Noninverting Bus Buffer, 3 State
• Manufacturer: ON Semiconductor

YA or YB
A or B
*Includes all probe and jig capacitance
Figure 3. Switching Waveform
t
PLH
DEVICE
UNDER
Figure 5. Test Circuit
TEST
50% V
50%
CC
OUTPUT
TEST POINT
C
L
*
INPUT
t
Figure 7. Input Equivalent Circuit
PHL
SWITCHING WAVEFORMS
V
GND
CC
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TEST CIRCUITS
5
OEA or OEB
YA or YB
YA or YB
DEVICE
UNDER
TEST
*Includes all probe and jig capacitance
Figure 4. Switching Waveform
50%
OUTPUT
50% V
50% V
Figure 6. Test Circuit
TEST POINT
t
t
PZL
PZH
CC
CC
C
1 kΩ
L
t
*
t
PHZ
PLZ
CONNECT TO V
TESTING t
CONNECT TO GND WHEN
TESTING t
V
V
OL
OH
+0.3V
--0.3V
PLZ
PHZ
V
GND
HIGH
IMPEDANCE
HIGH
IMPEDANCE
AND t
AND t
CC
CC
WHEN
PZL
PZH
.
.