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型号: 74LS151
厂商: Motorola, Inc Motorola, Inc
描述: 8-input multiplexer
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SN54/74LS151  
8-INPUT MULTIPLEXER  
The TTL/MSI SN54/74LS151 is a high speed 8-input Digital Multiplexer.  
It provides, in one package, the ability to select one bit of data from up to eight  
sources. The LS151 can be used as a universal function generator to  
generate any logic function of four variables. Both assertion and negation  
outputs are provided.  
8-INPUT MULTIPLEXER  
LOW POWER SCHOTTKY  
Schottky Process for High Speed  
Multifunction Capability  
On-Chip Select Logic Decoding  
Fully Buffered Complementary Outputs  
Input Clamp Diodes Limit High Speed Termination Effects  
J SUFFIX  
CERAMIC  
CASE 620-09  
16  
CONNECTION DIAGRAM DIP (TOP VIEW)  
1
N SUFFIX  
PLASTIC  
CASE 648-08  
16  
1
D SUFFIX  
SOIC  
CASE 751B-03  
16  
1
ORDERING INFORMATION  
SN54LSXXXJ Ceramic  
SN74LSXXXN Plastic  
SN74LSXXXD SOIC  
PIN NAMES  
LOADING (Note a)  
HIGH  
LOW  
S S  
0
Select Inputs  
Enable (Active LOW) Input  
Multiplexer Inputs  
Multiplexer Output (Note b)  
Complementary Multiplexer Output  
(Note b)  
0.5 U.L.  
0.5 U.L.  
0.5 U.L.  
10 U.L.  
10 U.L.  
0.25 U.L.  
0.25 U.L.  
0.25 U.L.  
5 (2.5) U.L.  
5 (2.5) U.L.  
2
E
LOGIC SYMBOL  
I I  
0
7
Z
Z
NOTES:  
a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.  
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)  
Temperature Ranges.  
FAST AND LS TTL DATA  
5-252