74VHC161 Fairchild Semiconductor, 74VHC161 Datasheet - Page 5

• Manufacturer Part Number: 74VHC161
• Description: 4-Bit Binary Counter with Asynchronous Clear
• Manufacturer: Fairchild Semiconductor

t
t
t
t
t
t
t
t
t
t
f
C
C
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
PHL
PHL
MAX
AC Electrical Characteristics
Note 4: C
operating current can be obtained by the equation: I
When the outputs drive a capacitive load, total current consumption is the sum of C
C
IN
PD
Symbol
Q0
–C
Q3
PD
and C
is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average
Propagation Delay
Time (CP–Q
Propagation Delay
Time (CP–TC, Count)
Propagation Delay
Time (CP–TC, Load)
Propagation Delay
Time (CET–TC)
Propagation Delay
Time (MR –Q
Propagation Delay
Time (MR –TC)
Maximum Clock
Frequency
Input Capacitance
Power Dissipation
Capacitance
TC
are the capacitances at Q0–Q3 and TC, respectively. F
Parameter
n
)
n
)
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
CC
V
(V)
(opr)
CC
0.3
0.5
0.3
0.5
0.3
0.5
0.3
0.5
0.3
0.5
0.3
0.5
0.3
0.5
C
PD
Min
135
* V
80
55
95
CC
* f
CP
IN
T
is the input frequency of the CP.
A
5
10.8
11.2
11.0
13.5
10.5
11.2
10.9
I
Typ
130
185
125
8.3
4.9
6.4
8.7
4.9
6.4
6.2
7.7
7.5
4.9
6.4
8.9
5.5
7.0
8.4
5.0
6.5
CC
85
23
4
25 C
.
PD
, and I
Max
12.8
16.3
10.1
13.6
17.1
10.1
17.2
20.7
10.3
12.3
12.3
15.8
10.1
13.6
17.1
11.0
13.2
16.7
10.6
CC
8.1
8.1
8.1
9.0
8.6
10
which is obtained from the following formula:
T
A
Min
115
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
70
50
85
40 to 85 C
Max
15.0
18.5
16.0
19.5
20.0
23.5
12.0
14.0
14.5
18.0
16.0
19.5
10.5
12.5
15.5
19.0
10.0
12.0
11.5
11.5
11.5
9.5
9.5
9.5
10
Units
MHz
MHz
pF
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
V
(Note 4)
CC
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Conditions
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
15 pF
50 pF
Open