M54/M74HC4020/4040
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Test Conditions
Symbol
Parameter
V
CC
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
t
REM
Minimum
Removal Time
Input Capacitance
Power Dissipation
Capacitance
2.0
4.5
6.0
C
IN
C
PD
(*)
5
34
for HC4040
for HC4020
for HC4040
for HC4020
for HC4040
6.0
30
35
for HC4020
for HC4040
for HC4020
T
A
= 25 C
54HC and 74HC
Min. Typ. Max.
30
8
7
20
5
4
76
21
18
48
17
13
60
18
15
56
18
15
15
65
70
40
8
7
32
8
7
70
19
16
75
15
13
75
15
13
175
35
30
0
0
0
25
5
5
10
75
15
13
50
10
9
145
29
25
145
29
25
140
28
24
140
28
24
4.8
24
28
95
19
16
95
19
16
220
44
37
0
0
0
30
6
5
10
o
Value
-40 to 85
o
C -55 to 125
o
C
74HC
54HC
Min. Max. Min. Max.
95
19
16
65
13
11
180
36
31
180
36
31
175
35
30
175
35
30
4
20
24
110
22
19
110
22
19
265
53
45
0
0
0
40
8
7
pF
pF
ns
ns
ns
ns
MHz
110
22
19
75
15
13
220
44
38
220
44
38
210
42
36
210
42
36
ns
ns
ns
ns
ns
ns
Unit
t
TLH
t
THL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PHL
Output Transition
Time
Propagation
Delay Time
(Qn - Qn+1)
Propagation
Delay Time
(CLOCK Q1)
Propagation
Delay Time
(CLOCK Q1)
Propagation
Delay Time
(CLEAR - Qn)
Propagation
Delay Time
(CLEAR - Qn)
Maximum Clock
Frequency
Minimum Pulse
Width
(CLOCK)
Minimum Pulse
Width
(CLEAR)
Minimum Pulse
Width
(CLEAR)
Minimum
Removal Time
t
PHL
f
MAX
t
W(H)
t
W(L)
t
W(H)
ns
t
W(H)
t
REM
(*) C
PD
is defined as the value of the IC鈥檚 internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. I
CC
(opr) = C
PD
鈥
CC
鈥
IN
+ I
CC
/2 (per FLIP/FLOP)
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