74ACT161 Fairchild Semiconductor, 74ACT161 Datasheet - Page 6

• Manufacturer Part Number: 74ACT161
• Description: Synchronous Presettable Binary Counter
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
t
t
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
W
W
t
MAX
PLH
PHL
PLH
PHL
PLH
PHL
PHL
PHL
AC Operating Requirements for AC
Note 8: Voltage Range 3.3 is 3.3V
AC Electrical Characteristics for ACT
Note 9: Voltage Range 5.0 is 5.0V
S
H
S
H
S
H
W
REC
Symbol
Symbol
Voltage Range 5.0 is 5.0V
Maximum Count
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
Propagation Delay
CP to TC
Propagation Delay
CET to TC
Propagation Delay
CET to TC
Propagation Delay
MR to Q
Propagation Delay
MR to TC
Setup Time, HIGH or LOW
P
Hold Time, HIGH or LOW
P
Setup Time, HIGH or LOW
PE to CP
Hold Time, HIGH or LOW
PE to CP
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
Clock Pulse Width
(Count) HIGH or LOW
MR Pulse Width,
LOW
Recovery Time
MR to CP
n
n
to CP
to CP
n
Parameter
Parameter
0.5V
0.3V
0.5V
n
n
(Note 9)
V
(V)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
CC
(Note 8)
V
(V)
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
5.0
3.3
CC
Min
115
1.5
1.5
2.0
1.5
1.5
1.5
1.5
2.5
6
T
C
Typ
A
6.0
3.5
6.5
4.0
3.0
2.0
2.0
2.0
2.0
2.0
3.0
2.5
L
7.0
4.0
6.0
3.5
3.5
2
2
1
Typ
125
T
5.5
6.0
7.0
8.0
5.5
6.5
6.0
8.0
C
50 pF
A
L
25 C
50 pF
25 C
13.5
11.5
7.5
0.5
6.0
4.5
3.5
2.5
4.0
3.0
5.5
4.5
8.5
0
0
0
0.5
0
0
1
Max
10.5
12.5
10.0
13.5
11.0
9.5
8.5
9.5
Guaranteed Minimum
T
A
T
A
Min
100
C
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.0
40 C to 85 C
L
C
10.5
8.5
0.5
4.5
3.5
7.5
6.0
0.5
40 C to 85 C
16
14
L
0.5
0
0
1
7
5
0
4
0
50 pF
3
50 pF
Max
10.5
12.5
13.5
10.0
10.5
14.5
11.5
11.0
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns