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74AC163SCXR PDF预览

74AC163SCXR

更新时间: 2024-02-26 01:48:23
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飞兆/仙童 - FAIRCHILD 计数器
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74AC163SCXR 数据手册

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AC Operating Requirements for AC  
V
T
= +25°C  
= 50 pF  
T = −40°C to +85°C  
A
CC  
A
C
C = 50 pF  
L
Symbol  
Parameter  
(V)  
(Note 8)  
3.3  
Units  
L
Typ  
5.5  
4.0  
Guaranteed Minimum  
t
Setup Time, HIGH or LOW  
13.5  
8.5  
16.0  
10.5  
0.5  
0
S
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
P
to CP  
5.0  
n
t
Hold Time, HIGH or LOW  
to CP  
3.3  
7.0  
5.0  
5.5  
1.0  
0
H
P
5.0  
n
t
Setup Time, HIGH or LOW  
SR to CP  
3.3  
14.0  
9.5  
1.0  
0.5  
11.5  
7.5  
1.0  
0.5  
6.0  
4.5  
0
16.5  
11.0  
0.5  
0
S
5.0  
4.0  
t
Hold Time, HIGH or LOW  
SR to CP  
3.3  
7.5  
5.5  
5.5  
H
5.0  
t
Setup Time, HIGH or LOW  
PE to CP  
3.3  
14.0  
8.5  
0.5  
0
S
5.0  
4.0  
t
Hold Time, HIGH or LOW  
PE to CP  
3.3  
7.5  
5.0  
3.5  
H
5.0  
t
Setup Time, HIGH or LOW  
CEP or CET to CP  
Hold Time, HIGH or LOW  
CEP or CET to CP  
Clock Pulse Width (Load)  
HIGH or LOW  
3.3  
7.0  
5.0  
0
S
5.0  
2.5  
t
3.3  
4.5  
3.0  
3.0  
H
5.0  
0
0.5  
4.0  
3.0  
4.5  
3.5  
t
3.3  
3.5  
2.5  
4.0  
3.0  
W
5.0  
2.0  
t
Clock Pulse Width (Count)  
HIGH or LOW  
3.3  
3.0  
W
5.0  
2.0  
Note 8: Voltage Range 3.3 is 3.3V ± 0.3V  
Voltage Range 5.0 is 5.0V ± 0.5V  
AC Electrical Characteristics for ACT  
V
T
= +25°C  
= 50 pF  
T = −40°C to +85°C  
A
CC  
A
C
C = 50 pF  
L
Symbol  
Parameter  
(V)  
(Note 9)  
5.0  
Units  
L
Min  
Typ  
Max  
Min  
Max  
f
Maximum Clock Frequency  
Propagation Delay, CP to Q  
(PE Input HIGH or LOW)  
Propagation Delay, CP to Q  
(PE Input HIGH or LOW)  
Propagation Delay  
CP to TC  
120  
140  
105  
MHz  
ns  
MAX  
t
PLH  
n
n
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
1.5  
1.5  
2.5  
3.0  
2.0  
2.0  
5.5  
6.0  
7.0  
8.0  
5.5  
6.0  
10.0  
11.0  
11.5  
13.5  
9.0  
1.5  
11.0  
12.0  
13.5  
15.0  
10.5  
11.0  
t
PHL  
1.5  
2.0  
2.0  
1.5  
2.0  
ns  
ns  
ns  
ns  
ns  
t
PLH  
t
Propagation Delay  
CP to TC  
PHL  
t
Propagation Delay  
CET to TC  
PLH  
t
Propagation Delay  
CET to TC  
PHL  
10.0  
Note 9: Voltage Range 5.0 is 5.0V ± 0.5V  
www.fairchildsemi.com  
6

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