M74HC74-1 Просмотр технического описания (PDF) - STMicroelectronics
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M74HC74-1 Datasheet PDF : 12 Pages
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M74HC74
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Value
Symbol
Parameter
VCC
(V)
tTLH tTHL Output Transition 2.0
Time
4.5
6.0
tPLH tPHL Propagation Delay 2.0
Time (CK - Q, Q)
4.5
6.0
tPLH tPHL Propagation Delay 2.0
Time (CLR, PR - 4.5
Q, Q)
6.0
fMAX Maximum Clock
2.0
Frequency
4.5
6.0
tW(H) Minimum Pulse
2.0
tW(L) Width (CK)
4.5
6.0
tW(L) Minimum Pulse
2.0
Width (CLR, PR)
4.5
6.0
ts
Minimum Set-up
2.0
Time
4.5
6.0
th Minimum Hold
2.0
Time
4.5
6.0
tREM Minimum Removal 2.0
Time (CLR, PR to 4.5
CK)
6.0
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min.
6.2
31
37
Typ. Max.
30 75
8 15
7 13
48 150
16 30
13 26
51 150
17 30
15 26
21
63
67
18 75
6 15
6 13
21 75
7 15
6 13
15 75
4 15
3 13
0
0
0
0 25
0
5
0
4
Min.
5
25
30
Max.
95
19
16
190
38
32
190
38
32
95
19
16
95
19
16
95
19
16
0
0
0
30
6
5
Min.
4.2
21
25
Max.
110
22 ns
19
225
45 ns
38
225
45 ns
38
MHz
110
22 ns
19
110
22 ns
19
110
22 ns
19
0
0 ns
0
35
7
ns
6
CAPACITIVE CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
VCC
(V)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
CIN Input Capacitance 5.0
5 10
10
10 pF
CPD Power Dissipation
Capacitance (note 5.0
34
pF
1)
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/2 (per FLIP/
FLOP)
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