M74HC174 查看數據表（PDF） - STMicroelectronics
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M74HC174 Datasheet PDF : 11 Pages
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M74HC174
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 (CLOCK - Q) 4.5
6.0
tPLH tPHL Propagation Delay 2.0
Time (CLEAR - Q) 4.5
6.0
fMAX Maximum Clock
2.0
Frequency
4.5
6.0
tW(H) Minimum Pulse
2.0
tW(L) Width (CLOCK)
4.5
6.0
tW(L) Minimum Pulse
2.0
Width (CLEAR)
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
4.5
6.0
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min.
7.2
36
42
Typ. Max.
30 75
8 15
7 13
68 135
17 27
14 23
72 145
18 29
15 25
14
56
66
24 75
6 15
5 13
24 75
6 15
5 13
28 75
7 15
6 13
0
0
0
5
5
5
5
5
5
Min.
5.8
29
34
Max.
95
19
16
170
34
29
180
36
31
95
19
16
95
19
16
95
19
16
0
0
0
5
5
5
Min.
4.8
24
28
Max.
110
22 ns
19
205
41 ns
35
220
44 ns
37
MHz
110
22 ns
19
110
22 ns
19
110
22 ns
19
0
0 ns
0
5
5 ns
5
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
40
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/6 (per FLIP/
FLOP)
And the total CPD when N pcs of FLIP-FLOP operate can be gained by the following equation : CPD (total) = 38 + 15 x n
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