74AC161 Просмотр технического описания (PDF) - Fairchild Semiconductor
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74AC161 Datasheet PDF : 11 Pages
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AC Operating Requirements for AC
Symbol
Parameter
tS
Setup Time, HIGH or LOW
Pn to CP
tH
Hold Time, HIGH or LOW
Pn to CP
tS
Setup Time, HIGH or LOW
PE to CP
tH
Hold Time, HIGH or LOW
PE to CP
tS
Setup Time, HIGH or LOW
CEP or CET to CP
tH
Hold Time, HIGH or LOW
CEP or CET to CP
tW
Clock Pulse Width
(Load) HIGH or LOW
tW
Clock Pulse Width
(Count) HIGH or LOW
tW
MR Pulse Width,
LOW
tREC
Recovery Time
MR to CP
Note 8: Voltage Range 3.3 is 3.3V ± 0.3V
Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 8)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
AC Electrical Characteristics for ACT
Symbol
Parameter
fMAX
Maximum Count
Frequency
tPLH
Propagation Delay CP to Qn
(PE Input HIGH or LOW)
tPHL
Propagation Delay CP to Qn
(PE Input HIGH or LOW)
tPLH
Propagation Delay
CP to TC
tPHL
Propagation Delay
CP to TC
tPLH
Propagation Delay
CET to TC
tPHL
Propagation Delay
CET to TC
tPHL
Propagation Delay
MR to Qn
tPHL
Propagation Delay
MR to TC
Note 9: Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 9)
Min
5.0
115
5.0
1.5
5.0
1.5
5.0
2.0
5.0
1.5
5.0
1.5
5.0
1.5
5.0
1.5
5.0
2.5
TA = +25°C
TA = −40°C to +85°C
CL = 50 pF
CL = 50 pF
Typ
Guaranteed Minimum
6.0
13.5
16
3.5
8.5
10.5
−7.0
−1
−0.5
−4.0
0
0
6.5
11.5
14
4.0
7.5
8.5
−6.0
0
0
−3.5
0.5
1
3.0
6.0
7
2.0
4.5
5
−3.5
0
0
−2
0
0.5
2.0
3.5
4
2.0
2.5
3
2.0
4.0
4.5
2.0
3.0
3.5
3.0
5.5
7.5
2.5
4.5
6.0
−2
−0.5
0
−1
0
0.5
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
TA = +25°C
CL = 50 pF
Typ
Max
125
5.5
9.5
6.0
10.5
7.0
11.0
8.0
12.5
5.5
8.5
6.5
9.5
6.0
10.0
8.0
13.5
TA = −40°C to +85°C
CL = 50 pF
Min
Max
100
1.5
10.5
1.5
11.5
1.5
12.5
1.5
13.5
1.5
10.0
1.5
10.5
1.5
11.0
2.0
14.5
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
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