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SL74LS157 参数 Datasheet PDF下载

SL74LS157图片预览
型号: SL74LS157
PDF下载: 下载PDF文件 查看货源
内容描述: 四2输入数据选择器/多路复用器 [Quad 2-Input Data Selector/Multiplexer]
分类和应用: 复用器
文件页数/大小: 3 页 / 34 K
品牌: SLS [ SYSTEM LOGIC SEMICONDUCTOR ]
 浏览型号SL74LS157的Datasheet PDF文件第1页浏览型号SL74LS157的Datasheet PDF文件第3页  
SL74LS157  
MAXIMUM RATINGS*  
Symbol  
Parameter  
Value  
7.0  
Unit  
V
VCC  
Supply Voltage  
Input Voltage  
Output Voltage  
V
IN  
7.0  
V
VOUT  
Tstg  
5.5  
V
Storage Temperature Range  
-65 to +150  
°C  
*Maximum Ratings are those values beyond which damage to the device may occur.  
Functional operation should be restricted to the Recommended Operating Conditions.  
RECOMMENDED OPERATING CONDITIONS  
Symbol  
Parameter  
Min  
4.75  
2.0  
Max  
Unit  
V
VCC  
Supply Voltage  
5.25  
V
IH  
High Level Input Voltage  
Low Level Input Voltage  
High Level Output Current  
Low Level Output Current  
V
V
IL  
0.8  
-0.4  
8.0  
V
IOH  
IOL  
TA  
mA  
mA  
°C  
Ambient Temperature Range  
0
+70  
DC ELECTRICAL CHARACTERISTICS over full operating conditions  
Guaranteed Limit  
Symbol  
Parameter  
Input Clamp Voltage  
Test Conditions  
VCC = min, IIN = -18 mA  
VCC = min, IOH = -0.4 mA  
VCC = min, IOL = 4 mA  
VCC = min, IOL = 8 mA  
Min  
Max  
Unit  
V
V
IK  
-1.5  
VOH  
VOL  
High Level Output Voltage  
Low Level Output Voltage  
2.7  
V
0.4  
0.5  
40  
V
IIH  
High Level Input Current  
VCC = max  
for pins 1,15  
mA  
mA  
mA  
V = 2.7 V  
A or B input  
for pins 1,15  
A or B input  
for pins 1,15  
A or B input  
20  
IN  
VCC = max  
0.2  
0.1  
-0.8  
-0.4  
-100  
V = 7.0 V  
IN  
IIL  
Low Level Input Current  
VCC = max  
V = 0.4 V  
IN  
IO  
Output Short Circuit Current  
Supply Current  
VCC = max, VO = 0 V  
(Note 1)  
-20  
mA  
mA  
ICC  
VCC = max (Note 2)  
16  
Note 1: Not more than one output should be shorted at a time, and the duration should not exceed one second.  
Note 2: ICC is measured with all outputs open, and 4.5 V applied to all inputs.  
System Logic  
SLS  
Semiconductor