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Part Name
Description
MC74VHC244 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC74VHC244
Octal Bus Buffer
Motorola => Freescale
MC74VHC244 Datasheet PDF : 6 Pages
1
2
3
4
5
6
MC74VHC244
A or B
50%
tPLH
YA or YB
50% VCC
Figure 1.
SWITCHING WAVEFORMS
VCC
GND
tPHL
OEA or OEB
YA or YB
YA or YB
50%
tPZL tPLZ
50% VCC
tPZH tPHZ
50% VCC
Figure 2.
VCC
GND
HIGH
IMPEDANCE
VOL +0.3V
VOH –0.3V
HIGH
IMPEDANCE
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
TEST CIRCUITS
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 k
Ω
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. Test Circuit
* Includes all probe and jig capacitance
Figure 4. Test Circuit
INPUT
Figure 5. Input Equivalent Circuit
MOTOROLA
4
VHC Data – Advanced CMOS Logic
DL203 — Rev 1
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