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74AC191PC 数据表(PDF) 5 Page - Fairchild Semiconductor

部件名 74AC191PC
功能描述  Up/Down Counter with Preset and Ripple Clock
Download  10 Pages
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

74AC191PC 数据表(HTML) 5 Page - Fairchild Semiconductor

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AC Electrical Characteristics
Note 6: Voltage Range 3.3 is 3.3V
± 0.3V
Voltage Range 5.0 is 5.0V
± 0.5V
Symbol
Parameter
VCC
CL = 50 pF
TA = −40°C to +85°C
Units
(V)
TA = +25°CCL = 50 pF
(Note 6)
Min
Typ
Max
Min
Max
fMAX
Maximum Count
3.3
70
105
65
MHz
Frequency
5.0
90
133
85
tPLH
Propagation Delay
3.3
2.0
8.5
15.0
1.5
16.0
ns
CP to Qn
5.0
1.5
6.0
11.0
1.5
12.0
tPHL
Propagation Delay
3.3
2.5
8.5
14.5
2.0
16.0
ns
CP to Qn
5.0
1.5
6.0
10.5
1.5
11.5
tPLH
Propagation Delay
3.3
3.5
10.5
18.0
2.5
20.0
ns
CP to TC
5.0
2.5
7.5
12.0
1.5
14.0
tPHL
Propagation Delay
3.3
4.0
10.5
17.5
3.0
19.0
ns
CP to TC
5.0
2.5
7.5
12.5
2.0
13.5
tPLH
Propagation Delay
3.3
2.5
7.5
12.0
2.0
13.5
ns
CP to RC
5.0
2.0
5.5
9.5
1.0
10.5
tPHL
Propagation Delay
3.3
2.5
7.0
11.5
2.0
12.5
ns
CP to RC
5.0
1.5
5.0
8.5
1.0
9.5
tPLH
Propagation Delay
3.3
2.5
7.0
12.0
1.5
13.5
ns
CE to RC
5.0
1.5
5.0
8.5
1.0
9.5
tPHL
Propagation Delay
3.3
2.0
6.5
11.0
1.5
12.5
ns
CE to RC
5.0
1.5
5.0
8.0
1.0
9.0
tPLH
Propagation Delay
3.3
2.5
6.5
12.5
2.0
14.5
ns
U /D to RC
5.0
1.5
5.0
9.0
1.0
10.0
tPHL
Propagation Delay
3.3
2.5
7.0
12.0
2.0
13.5
ns
U /D to RC
5.0
1.5
5.0
8.5
1.0
10.0
tPLH
Propagation Delay
3.3
2.0
7.0
11.5
1.5
13.5
ns
U /D to TC
5.0
1.5
5.0
8.5
1.0
9.5
tPHL
Propagation Delay
3.3
2.0
6.5
11.0
1.5
12.5
ns
U /D to TC
5.0
1.5
5.0
8.5
1.0
9.5
tPLH
Propagation Delay
3.3
2.5
8.0
13.5
2.0
15.5
ns
Pn to Qn
5.0
2.0
5.5
9.5
1.0
10.5
tPHL
Propagation Delay
3.3
2.5
7.5
13.0
1.5
14.5
ns
Pn to Qn
5.0
1.5
5.5
9.5
1.0
10.5
tPLH
Propagation Delay
3.3
3.5
9.5
14.5
2.5
17.5
ns
PL to Qn
5.0
2.0
5.5
9.5
1.0
10.5
tPHL
Propagation Delay
3.3
3.0
8.0
13.5
2.0
15.5
ns
PL to Qn
5.0
2.0
6.0
10.0
1.5
11.0


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