參數(shù)資料
型號(hào): M74HC174
廠商: 意法半導(dǎo)體
英文描述: Hex D-Type Flip Flop with Clear(帶清除端的六D觸發(fā)器)
中文描述: 六角D類(lèi)拖鞋與Clear(帶清除端的六?觸發(fā)器)
文件頁(yè)數(shù): 5/11頁(yè)
文件大小: 246K
代理商: M74HC174
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
-40 to 85
o
C
74HC
Min.
Unit
V
CC
(V)
T
A
= 25
o
C
54HC and 74HC
Min.
Typ.
30
-55 to 125
o
C
54HC
Min.
Max.
75
15
13
135
27
23
145
29
25
Max.
95
19
16
170
34
29
180
36
31
Max.
110
22
19
205
41
35
220
44
37
t
TLH
t
THL
Output Transition
Time
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
ns
8
7
t
PLH
t
PHL
Propagation
Delay Time
(CK - Q)
68
17
14
72
18
15
14
56
66
24
6
5
24
6
5
28
7
6
ns
t
PHL
Propagation
Delay Time
(CLR - Q)
ns
f
MAX
Maximum Clock
Frequency
7.2
36
42
5.8
29
34
4.8
24
28
MHz
t
W(H)
t
W(L)
Minimum Pulse
Width
(CLOCK)
75
15
13
75
15
13
75
15
13
0
0
0
5
5
5
10
95
19
16
95
19
16
95
19
16
0
0
0
5
5
5
10
110
22
19
110
22
19
110
22
19
0
0
0
5
5
5
10
ns
t
W(L)
Minimum Pulse
Width
(CLR)
ns
t
s
Minimum Set-up
Time
ns
t
h
Minimum Hold
Time
ns
t
REM
Minimum
Removal Time
5
5
5
5
ns
C
IN
Input Capacitance
Power Dissipation
Capacitance
pF
C
PD
(*)
40
pF
(*) C
PD
isdefined asthe value ofthe IC’sinternal equivalent capactance which is calculated from the operating current consumption without load.
(Refer to Test Circuit).Average operting current can be obtained by thefollowingequation. I
CC
(opr) = C
PD
V
CC
f
IN
+ I
CC
/6(per FLIP/FLOP)
Andthe total CPDwhen Npcs of FLIPFLOPoperate can be gained bythe followingequation: CPD (total)=38 +15 x n
M54/M74HC174
5/11
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