M54HC174 查看數據表（PDF） - STMicroelectronics
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M54HC174 Datasheet PDF : 11 Pages
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M54/M74HC174
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC
(V)
TA = 25 oC
54HC and 74HC
Value
-40 to 85 oC -55 to 125 oC Unit
74HC
54HC
Min. Typ. Max. Min. Max. Min. Max.
tTLH Output Transition 2.0
tTHL Time
4.5
30 75
8
15
95
110
19
22
ns
6.0
7
13
16
19
tPLH Propagation
2.0
tPHL Delay Time
4.5
(CK - Q)
6.0
68 135
170
205
17 27
34
41
ns
14 23
29
35
tPHL Propagation
2.0
Delay Time
4.5
(CLR - Q)
6.0
72 145
180
220
18 29
36
44
ns
15 25
31
37
fMAX Maximum Clock 2.0
Frequency
4.5
7.2 14
5.8
4.8
36 56
29
24
MHz
6.0
42 66
34
28
tW(H) Minimum Pulse 2.0
tW(L) Width
4.5
(CLOCK)
6.0
24 75
6
15
5
13
95
110
19
22
ns
16
19
tW(L) Minimum Pulse 2.0
Width
4.5
(CLR)
6.0
24 75
6
15
5
13
95
110
19
22
ns
16
19
ts
Minimum Set-up 2.0
Time
4.5
28 75
7
15
95
110
19
22
ns
6.0
6
13
16
19
th
Minimum Hold
2.0
Time
4.5
0
0
0
0
0
0
ns
6.0
0
0
0
tREM Minimum
2.0
Removal Time
4.5
5
5
5
5
5
5
5
5
ns
6.0
5
5
5
5
CIN Input Capacitance
5
10
10
10 pF
CPD (*) Power Dissipation
40
Capacitance
pF
(*) 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 operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •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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