參數(shù)資料
型號(hào): M74HC125
廠商: 意法半導(dǎo)體
英文描述: Quad Bus Buffers (3-State)(四總線緩沖器(三態(tài)))
中文描述: 四總線緩沖器(三態(tài))(四總線緩沖器(三態(tài)))
文件頁數(shù): 5/11頁
文件大?。?/td> 255K
代理商: M74HC125
SWITCHING CHARACTERISTICS TEST WAVEFORM
AC ELECTRICAL CHARACTERISTICS
(Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
-40 to 85
o
C
74HC
Min.
Unit
V
CC
(V)
C
L
(pF)
T
A
= 25
o
C
54HC and 74HC
Min.
Typ.
20
-55 to 125
o
C
54HC
Min.
Max.
60
12
10
75
15
13
105
21
18
75
15
13
105
21
18
80
16
14
10
Max.
75
15
13
95
19
16
130
26
22
95
19
16
130
26
22
100
20
17
10
Max.
90
18
15
110
22
19
160
32
27
110
22
19
160
32
27
120
24
20
10
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
50
ns
6
5
t
PLH
t
PHL
Propagation
Delay Time
50
36
9
8
52
13
11
36
9
8
52
13
11
48
12
10
5
35
ns
150
ns
t
PZL
t
PZH
3 State Output
Enable Time
50
R
L
= 1 K
ns
150
R
L
= 1 K
ns
t
PLZ
t
PHZ
3 State Output
Disable Time
50
R
L
= 1 K
ns
C
IN
Input Capacitance
Power Dissipation
Capacitance
pF
C
PD
(*)
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
HC125
HC126
G
Y
G
Y
A
A
Y
Y
M54/M74HC125/126
5/11
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