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74LS85 参数 Datasheet PDF下载

74LS85图片预览
型号: 74LS85
PDF下载: 下载PDF文件 查看货源
内容描述: 4位数值比较器 [4-Bit Magnitude Comparator]
分类和应用: 比较器
文件页数/大小: 6 页 / 62 K
品牌: FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
 浏览型号74LS85的Datasheet PDF文件第1页浏览型号74LS85的Datasheet PDF文件第2页浏览型号74LS85的Datasheet PDF文件第4页浏览型号74LS85的Datasheet PDF文件第5页浏览型号74LS85的Datasheet PDF文件第6页  
Absolute Maximum Ratings(Note 1)  
Note 1: 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)  
Typ  
Symbol  
Parameter  
Conditions  
= Min, I = −18 mA  
Min  
Max  
Units  
(Note 2)  
V
V
Input Clamp Voltage  
HIGH Level  
V
V
V
V
V
1.5  
V
V
I
CC  
CC  
I
= Min, I = Max  
OH  
OH  
2.7  
3.4  
Output Voltage  
LOW Level  
= Max, V = Min  
IH  
IL  
V
= Min, I = Max  
OL  
OL  
CC  
0.35  
0.25  
0.5  
Output Voltage  
= Max, V = Min  
V
IL  
IH  
I
= 4 mA, V = Min  
0.4  
0.1  
OL  
CC  
I
I
I
Input Current @ Max  
Input Voltage  
V
V
= Max  
A < B  
A > B  
Others  
A < B  
A > B  
Others  
A < B  
A > B  
Others  
I
CC  
= 7V  
0.1  
mA  
µA  
mA  
I
0.3  
HIGH Level  
V
= Max  
20  
IH  
IL  
CC  
Input Current  
V = 2.7V  
20  
I
60  
LOW Level  
V
= Max  
0.4  
0.4  
1.2  
100  
20  
CC  
Input Current  
V = 0.4V  
I
I
I
Short Circuit Output Current  
Supply Current  
V
V
= Max (Note 3)  
= Max (Note 4)  
20  
mA  
mA  
OS  
CC  
CC  
CC  
10  
Note 2: All typicals are at V = 5V, T = 25°C.  
CC  
A
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.  
Note 4: I is measured with all outputs OPEN, A = B grounded and all other inputs at 4.5V.  
CC  
3
www.fairchildsemi.com  
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