3/4 ECE:: FIRST SEMESTER (2020-21)
subject: Digital IC Applications (R1631043)
UNIT-4: Combinational logic circuits:
Adders and Subtractors |
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Parallel adders / Subtractors: IC7483 4-bit adder and Subtractor and
adder/Subtractor circuit vhdl code |
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Carry Look Ahead adder (74182): VHDL
code |
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Decoders: 74LS138( 3to8 decoder);
74LS139(2to4decoder); implementation of 3to8 using 2to4 decoder |
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Encoders: Priority encoder(74LS148);
implementation of 32-to-5 encoder using 74LS148; |
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Multiplexers: 74LS153(4:1MUX);
74LS151(8:1MUX); Implementation of 8:1MUX and 16:1MUX using multiplexers |
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Demultiplexers 74LS155 |
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ALU : 74LS381 and 74LS382 |
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ALU- 74LS181, implementation of 8-bit
ALU |
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Comparators: 74LS85; implementation 8-bit/12-bit
using 74LS85 |
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Floating point Encoder |