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Describe 74LS139 memory decoder.
The 74LS139 is a dual 2-to-4 line decoder. This contains two separate 2-to-4 line decoders - all with its address, output and enable connections.
The Pin-out of the 74LS139
D flipflop
Condition Return Similar to conditional jump and call instructions there are conditional return instructions also based on various flags.
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Two byte Instructions In these instruction the first byte specifies the operations code and the second byte specifies the operand. To identify two byte instructions o
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