參數(shù)資料
型號： M54HCT138F1R
廠商： 意法半導(dǎo)體
英文描述： 3 TO 8 LINE DECODER INVERTING
中文描述： 3至8線譯碼器反相
文件頁數(shù)： 5/10頁
文件大小： 242K
代理商： M54HCT138F1R
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.
-55 to 125
o
C
54HC
Min.
Max.
15
Max.
19
Max.
22
t
TLH
t
THL
t
PLH
t
PHL
Output Transition
Time
Propagation
Delay Time
(A, B, C - Y)
Propagation
Delay Time
(G1 - Y)
Propagation
Delay Time
(G2 - Y)
Input Capacitance
Power Dissipation
Capacitance
4.5
8
ns
4.5
17
30
38
45
ns
t
PLH
t
PHL
4.5
16
30
38
45
ns
t
PLH
t
PHL
4.5
19
30
38
45
ns
C
IN
5
10
10
10
pF
C
PD
(*)
52
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
TEST CIRCUIT I
CC
(Opr.)
SWITCHING CHARACTERISTICS TEST WAVEFORM
INPUT WAVEFORMIS THESAME
AS THATIN CASEOF SWITCHING
CHARACTERISTICSTEST.
M54/M74HCT138
5/10
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