M74HC390 STMICROELECTRONICS [STMicroelectronics], M74HC390 Datasheet - Page 7

• Manufacturer Part Number: M74HC390
• Description: DUAL DECADE COUNTER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

AC ELECTRICAL CHARACTERISTICS (C
(*) C
(Refer to Test Circuit). Average operting current can be obtained by the following equation. I
Symbol
C
t
t
f
f
t
t
t
t
t
t
t
t
t
t
t
t
t
PD
MAX
MAX
W(H)
W(L)
(W)H
REM
C
TLH
THL
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
PHL
PD
IN
(*)
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
Output Transition
Time
Propagation
Delay Time
(CLOCK A - QA)
Propagation
Delay Time
(CLOCK A - QB, QD)
Propagation
Delay Time
(CLOCK A - QC)
Propagation
Delay Time
(CLOCK B - QC)
Propagation
Delay Time
(CLEAR - Qn
Maximum Clock
Frequency
(CLOCK A - QA)
Maximum Clock
Frequency
(CLOCK B - QB)
Minimum Pulse
Wisth
(CLOCK)
Minimum Pulse
Wisth
(CLEAR)
Propagation
Delay Time
Input Capacitance
Power Dissipation
Capacitance
Parameter
V
(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
CC
Test Conditions
QA Connected
to CKB
L
= 50 pF, Input t
Min.
8.4
8.4
42
50
42
50
54HC and 74HC
T
A
Typ.
= 25
108
30
42
14
12
45
15
13
36
31
72
24
20
45
15
13
17
65
79
17
67
79
24
24
84
8
7
6
5
6
5
5
o
C
Max.
120
120
280
185
125
75
15
13
24
20
24
20
56
48
37
31
25
21
75
15
13
75
15
13
25
10
CC
5
5
r
(opr) = C
= t
Value
f
-40 to 85
Min.
6.8
6.8
= 6 ns)
34
40
34
40
PD
74HC
V
CC
Max.
150
150
350
230
155
95
19
16
30
26
30
26
70
60
46
39
31
26
95
19
16
95
19
16
30
10
6
5
o
f
C
IN
+ I
-55 to 125
CC
Min.
M54/M74HC390
5.6
5.6
28
33
28
33
54HC
Max.
110
180
180
420
280
190
110
110
22
19
36
31
36
31
84
71
56
48
38
32
22
19
22
19
35
10
7
6
o
C
Unit
pF
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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