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參數(shù)資料
| 型號(hào)： | M54HC21 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | DUAL 4-INPUT AND GATE |
| 中文描述： | 雙4輸入與門 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 232K |
| 代理商： | M54HC21 |
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
100
20
17
10
Max.
95
19
16
125
25
21
10
Max.
110
22
19
150
30
26
10
t
TLH
t
THL
Output Transition
Time
2.0
4.5
6.0
2.0
4.5
6.0
ns
8
7
t
PLH
t
PHL
Propagation
Delay Time
40
13
11
5
25
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
/4(per Gate)
SWITCHING CHARACTERISTICS TEST CIRCUIT
TEST CIRCUIT I
CC
(Opr.)
INPUT WAVEFORMIS THESAME ASTHATIN CASEOF SWITCHINGCHARACTERISTICSTEST.
M54/M74HC21
4/9
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