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74LS181 参数 Datasheet PDF下载

74LS181图片预览
型号: 74LS181
PDF下载: 下载PDF文件 查看货源
内容描述: 4位算术逻辑单元 [4-Bit Arithmetic Logic Unit]
分类和应用:
文件页数/大小: 7 页 / 78 K
品牌: FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
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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.  
Supply Voltage  
Input Voltage  
7V  
7V  
Operating Free Air Temperature Range  
Storage Temperature Range  
0°C to +70°C  
65°C to +150°C  
Recommended Operating Conditions  
Symbol  
Parameter  
Min  
4.75  
2
Nom  
Max  
Units  
V
VCC  
VIH  
VIL  
IOH  
IOL  
TA  
Supply Voltage  
5
5.25  
HIGH Level Input Voltage  
LOW Level Input Voltage  
HIGH Level Output Current  
LOW Level Output Current  
Free Air Operating Temperature  
V
0.8  
0.4  
8
V
mA  
mA  
°C  
0
70  
Electrical Characteristics  
over recommended operating free air temperature range (unless otherwise noted)  
Symbol Parameter Conditions  
Input Clamp Voltage = Min, I = −18 mA  
Typ  
Min  
Max  
Units  
(Note 4)  
V
V
V
V
V
V
V
1.5  
V
V
I
CC  
CC  
I
HIGH Level  
= Min, I = Max,  
OH  
OH  
2.7  
Output Voltage  
LOW Level  
= Max  
IL  
V
= Min, I = Max,  
OL  
OL  
CC  
0.35  
0.25  
0.5  
Output Voltage  
= Min  
V
IH  
I
= 4 mA, V = Min  
0.4  
0.1  
OL  
CC  
I
I
I
Input Current @ Max  
Input Voltage  
V
= Max, V = 7V  
M input  
A , B  
I
CC  
CC  
CC  
CC  
I
0.3  
n
n
mA  
S
0.4  
n
C
0.5  
n
HIGH Level  
V
V
V
= Max, V = 2.7V  
M input  
A , B  
20  
IH  
IL  
I
Input Current  
60  
n
n
µA  
S
80  
n
C
100  
0.4  
1.2  
1.6  
2.0  
n
LOW Level  
= Max, V = 0.4V  
M input  
A , B  
I
Input Current  
n
n
mA  
S
n
C
n
I
I
Short Circuit  
= Max  
OS  
CC  
20  
100  
mA  
mA  
Output Current  
(Note 5)  
V = Max, B , C = GND  
CC  
Supply Current  
n
n
37  
S , M, A = 4.5V  
n
n
Note 4: All typicals are at V = 5V, T = 25°C.  
CC  
A
Note 5: Not more than one output should be shorted at a time, and the duration should not exceed one second.  
www.fairchildsemi.com  
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