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参数资料
| 型号： | DM74LS138MX |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 通用总线功能 |
| 英文描述： | 3-To-8-Line Demultiplexer |
| 中文描述： | LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| 封装： | 0.150 INCH, MS-012, SOIC-16 |
| 文件页数： | 4/7页 |
| 文件大小： | 81K |
| 代理商： | DM74LS138MX |
www.fairchildsemi.com
4
D
DM74LS139 Recommended Operating Conditions
DM74LS139 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 6:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 7:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 8:
I
CC
is measured with all outputs enabled and OPEN.
DM74LS139 Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
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
I
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 6)
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 7)
V
CC
=
Max (Note 8)
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
LOW Level Input Current
0.1
20
0.36
100
11
mA
μ
A
mA
Short Circuit Output Current
Supply Current
20
mA
mA
6.8
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
Propagation Delay Time
Select to Output
18
27
ns
t
PHL
Select to Output
27
40
ns
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
t
PLH
Enable to Output
18
27
ns
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
Enable to Output
24
40
ns
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DM74LS138N | 功能描述:编码器、解码器、复用器和解复用器 3-to-8 Line Dec/Dem RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| DM74LS138SJ | 功能描述:编码器、解码器、复用器和解复用器 3-to-8 Line Dec/Dem RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| DM74LS138SJX | 功能描述:编码器、解码器、复用器和解复用器 3-to-8 Line Dec/Dem RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| DM74LS139 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DM74LS139M | 功能描述:编码器、解码器、复用器和解复用器 Dl 2-to-4 Ln Dec/Dem RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
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