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參數(shù)資料
| 型號： | M54HC7643M1R |
| 廠商： | 意法半導體 |
| 英文描述： | OSC 5V SMT 7X5 CMOS |
| 中文描述： | 八路總線收發(fā)器（3態(tài)）：HC7645同相HC7640反轉，HC7643反向/同相 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 257K |
| 代理商： | M54HC7643M1R |
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.
25
-55 to 125
o
C
54HC
Min.
Max.
60
12
10
125
25
21
150
30
26
150
30
26
10
Max.
75
15
13
156
31
27
188
38
32
188
38
32
10
Max.
90
18
15
190
38
32
225
45
38
225
45
38
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
ns
7
6
t
PLH
t
PHL
Propagation
Delay Time
61
15
13
77
19
16
84
21
18
5
ns
t
PZL
t
PZH
Output Enable
Time
R
L
= 1 K
ns
t
PLZ
t
PHZ
Output Disable
Time
R
L
= 1 K
ns
C
IN
C
OUT
Input Capacitance
Output
Capacitance
Power Dissipation
Capacitance
pF
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
/4(per Gate)
SWITCHING CHARACTERISTICS TEST WAVEFORM
V
CC
V
CC
GND
GND
M54/M74HC7245/7640/7643/7645
5/10
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