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參數(shù)資料
| 型號(hào)： | DM74LS155 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Dual 2-Line to 4-Line Decoders/Demultiplexers(雙2-4線譯碼器) |
| 中文描述： | 雙路2線至4線解碼器/解復(fù)用器（雙2-4線譯碼器） |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 63K |
| 代理商： | DM74LS155 |
3
www.fairchildsemi.com
D
Absolute Maximum Ratings
(Note 3)
Note 3:
The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
DM74LS155 Recommended Operating Conditions
DM74LS155 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 4:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 5:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 6:
I
CC
is measured with all outputs OPEN, A,B, and C1 inputs at 4.5V, and C2, G1, and G2 inputs GROUNDED.
DM74LS155 Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
C
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
7V
0
°
C to
+
70
°
C
65
°
C to
+
150
°
C
Symbol
Parameter
Min
4.75
2
Nom
5
Max
5.25
Units
V
V
V
mA
mA
°
C
V
CC
V
IH
V
IL
V
OH
I
OL
T
A
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
0.8
0.4
8
70
0
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 4)
V
I
V
OH
Input Clamp Voltage
HIGH Level
Output Voltage
V
CC
=
Min, I
I
=
18 mA
V
CC
=
Min, I
OH
=
Max
V
IL
=
Max, V
IH
=
Min
V
CC
=
Min, I
OL
=
Max
V
IL
=
Max, V
IH
=
Min
I
OL
=
4 mA, V
CC
=
Min
V
CC
=
Max, V
I
=
7V
V
CC
=
Max, V
I
=
2.7V
V
CC
=
Max, V
I
=
0.4V
V
CC
=
Max (Note 5)
V
CC
=
Max (Note 6)
1.5
V
2.7
3.4
V
V
OL
LOW Level
Output Voltage
0.35
0.5
V
0.25
0.4
I
I
I
IH
I
IL
I
OS
I
CC
Input Current @ Max Input Voltage
HIGH Level Input Current
0.1
20
0.36
100
10
mA
μ
A
mA
mA
mA
LOW Level Input Current
Short Circuit Output Current
Supply Current
20
6.1
From (Input)
R
L
=
2 k
Symbol
Parameter
To (Output)
C
L
=
15 pF
Min
C
L
=
50 pF
Min
Units
Max
Max
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
A, B, C2, G1
or G2 to Y
18
22
ns
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
A, B, C2, G1
or G2 to Y
A or B
27
35
ns
t
PLH
18
24
ns
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
to Y
A or B
to Y
t
PHL
27
35
ns
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
C1
to Y
C1
20
24
ns
t
PHL
27
35
ns
HIGH-to-LOW Level Output
to Y
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| DM74LS155M | Dual 2-Line to 4-Line Decoders/Demultiplexers |
| DM74LS155N | Dual 2-Line to 4-Line Decoders/Demultiplexers |
| DM74LS156N | Dual 2-Line to 4-Line Decoders/Demultiplexers |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74LS155 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DM74LS155M | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual Dec/Demul RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74LS155MX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual Dec/Demul RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74LS155N | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual Dec/Demul RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74LS156 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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