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參數(shù)資料
| 型號(hào)： | 74LS154 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 4-Line to 16-Line Decoder/Demultiplexer |
| 中文描述： | 4線到16線譯碼器/解復(fù)用器 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 120K |
| 代理商： | 74LS154 |
Absolute Maximum Ratings
(Note)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
DM54LS
DM74LS
b
55
§
C to
a
125
§
C
0
§
C to
a
70
§
C
b
65
§
C to
a
150
§
C
Storage Temperature Range
Note: The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaran-
teed. The device should not be operated at these limits. The
parametric values defined in the ‘‘Electrical Characteristics’’
table are not guaranteed at the absolute maximum ratings.
The ‘‘Recommended Operating Conditions’’ table will define
the conditions for actual device operation.
Recommended Operating Conditions
Symbol
Parameter
DM54LS154
DM74LS154
Units
Min
Nom
Max
Min
Nom
Max
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage
4.5
5
5.5
4.75
5
5.25
V
High Level Input Voltage
2
2
V
Low Level Input Voltage
0.7
0.8
V
High Level Output Current
b
0.4
b
0.4
mA
Low Level Output Current
4
8
mA
§
C
Free Air Operating Temperature
b
55
125
0
70
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
V
I
V
OH
Input Clamp Voltage
V
CC
e
Min, I
I
e b
18 mA
V
CC
e
Min, I
OH
e
Max
V
IL
e
Max, V
IH
e
Min
b
1.5
V
High Level Output
Voltage
DM54
2.5
3.4
V
DM74
2.7
3.4
V
OL
Low Level Output
Voltage
V
CC
e
Min, I
OL
e
Max
V
IL
e
Max, V
IH
e
Min
DM54
0.25
0.4
DM74
0.35
0.5
V
I
OL
e
4 mA, V
CC
e
Min
V
CC
e
Max, V
I
e
7V
DM74
0.25
0.4
I
I
Input Current
@
Max
Input Voltage
0.1
mA
I
IH
I
IL
I
OS
High Level Input Current
V
CC
e
Max, V
I
e
2.7V
V
CC
e
Max, V
I
e
0.4V
V
CC
e
Max
(Note 2)
20
m
A
Low Level Input Current
b
0.4
b
100
b
100
mA
Short Circuit
Output Current
DM54
b
20
b
20
mA
DM74
I
CC
Note 1:
All typicals are at V
CC
e
5V, T
A
e
25
§
C.
Note 2:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Supply Current
V
CC
e
Max (Note 3)
9
14
mA
Note 3:
I
CC
is measured with all outputs open and all inputs grounded.
Switching Characteristics
at V
CC
e
5V and T
A
e
25
§
C (See Section 1 for Test Waveforms and Output Load)
From (Input)
To (Output)
R
L
e
2 k
X
Symbol
Parameter
C
L
e
15 pF
C
L
e
50 pF
Units
Min
Max
Min
Max
t
PLH
Propagation Delay Time
Low to High Level Output
Data to
Output
30
35
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Data to
Output
30
35
ns
t
PLH
Propagation Delay Time
Low to High Level Output
Strobe to
Output
20
25
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Strobe to
Output
25
35
ns
2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LS154N | 制造商: 功能描述: 制造商:undefined 功能描述: |
| 74LS155 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 2-Line to 4-Line Decoders/Demultiplexers |
| 74LS155 WAF | 制造商:Texas Instruments 功能描述: |
| 74LS155N 91 | 制造商:TI 功能描述:74LS155N |
| 74LS155N91 | 制造商:TI 功能描述:74LS155N |
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