參數(shù)資料
型號(hào): 74VHC157
廠商: 意法半導(dǎo)體
英文描述: Quad 2 Channel Multiplexer(四二通道多路復(fù)用器)
中文描述: 四2通道多路復(fù)用(四二通道多路復(fù)用器)
文件頁數(shù): 4/9頁
文件大?。?/td> 72K
代理商: 74VHC157
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
Test Conditions
Value
Unit
T
A
= 25
o
C
Min.
Typ.
-40 to 85
o
C
Min.
Max.
10
Max.
10
C
IN
C
PD
Input Capacitance
Power Dissipation
Capacitance (note 1)
4
20
pF
pF
1)C
PD
isdefined as thevalue oftheIC’sinternal equivalent capacitance whichiscalculated fromtheoperatingcurrent consumption without load.(Referto
TestCircuit).Average operatingcurrent canbeobtained bythefollowingequation.I
CC
(opr)=C
PD
V
CC
f
IN
+I
CC
/4(per Channel)
AC ELECTRICAL CHARACTERISTICS
(Inputt
r
= t
f
=3 ns)
Symbol
Parameter
Test Condition
C
L
(pF)
Value
Unit
V
CC
(V)
3.3
(*)
3.3
(*)
5.0
(**)
5.0
(**)
3.3
(*)
3.3
(*)
5.0
(**)
5.0
(**)
3.3
(*)
3.3
(*)
5.0
(**)
5.0
(**)
T
A
= 25
o
C
Min.
Typ.
-40 to 85
o
C
Min.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Max.
9.7
13.2
6.4
8.4
13.2
16.7
8.1
10.1
13.6
17.1
8.6
10.6
Max.
11.5
15.0
7.5
9.5
15.5
19.0
9.5
11.5
16.0
19.5
10.0
12.0
t
PLH
t
PHL
Propagation Delay
Time
A, B to Y
15
50
15
50
15
50
15
50
15
50
15
50
6.2
8.7
4.1
5.6
8.4
10.9
5.3
6.8
8.7
11.2
5.6
7.1
ns
t
PLH
t
PHL
Propagation Delay
Time
SELECT to Y
ns
t
PLH
t
PHL
Propagation Delay
Time
STROBE to Y
ns
(*) Voltagerangeis3.3V
±
0.3V
(**) Voltagerange is 5V
±
0.5V
74VHC157
4/9
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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