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MC54HCT161AJ データシートの表示(PDF) - Motorola => Freescale
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MC54HCT161AJ
Presettable Counters
Motorola => Freescale
MC54HCT161AJ Datasheet PDF : 12 Pages
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MC54/74HCT161A MC54/74HCT163A
SWITCHING WAVEFORMS
tr
tf
90%
3.0V
Clock
1.3V
10%
GND
tw
1/fMAX
tPLH
tPHL
Any
90%
Output
1.3V
10%
tTLH
tTHL
Figure 1.
tw
3.0V
Reset
1.3V
GND
tPHL
Any
Output
Clock
1.3V
trec
3.0V
1.3V
GND
Figure 2.
Enable T
Ripple
Carry Out
tr
90%
1.3V
10%
tPLH
90%
1.3V
10%
tTLH
Figure 3.
tf
3.0V
GND
tPHL
tTHL
3.0V
Reset
1.3V
GND
tsu
th
3.0V
Clock
1.3V
GND
Figure 4. HCT163A Only
3.0V
Inputs P0,
P1, P2, P3
1.3V
GND
Enable T
Valid
3.0V
tsu
th
Load
1.3V
tsu
th
trec
or
3.0V
Enable P
GND
3.0V
Clock
1.3V
tsu
th
1.3V
GND
3.0V
Clock
1.3V
GND
GND
Figure 5.
Figure 6.
DEVICE
UNDER
TEST
TEST
POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 7. Test Circuit
High–Speed CMOS Logic Data
5
DL129 — Rev 6
MOTOROLA
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