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參數(shù)資料
| 型號： | M54HC688 |
| 廠商： | 意法半導體 |
| 英文描述： | 8 Bit Equality Comparator(8位相同比較器) |
| 中文描述： | 平等8位比較器（8位相同比較器） |
| 文件頁數(shù)： | 5/10頁 |
| 文件大小： | 242K |
| 代理商： | M54HC688 |
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
170
34
29
110
22
19
10
Max.
95
19
16
215
43
37
140
28
24
10
Max.
110
22
19
255
51
43
165
33
28
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
ns
8
7
t
PLH
t
PHL
Propagation
Delay Time
(Pn, Qn - P = Q)
60
21
17
40
13
10
5
32
ns
t
PLH
t
PHL
Propagation
Delay Time
(G - P = Q)
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
SWITCHING CHARACTERISTICS TEST
WAVEFORM
TEST CIRCUIT ICC
(Opr.)
INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF
SWITCHINGCHARACTERISTICSTEST.
M54/M74HC688
5/10
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