http://i.imgur.com/wHZsAWX.png l. If the decoder has active low outputs (74155)

Question

http://i.imgur.com/wHZsAWX.png

l. If the decoder has active low outputs (74155) instead of active high outputs as the case for D 8E 3-to-8 decoder, why can a NAND gate be used to logically OR its outputs? 2. Which MSI function, multiplexer or decoder would best implement multiple output functions (i.e. many functions of the same input variables)? Why? 3. What are the advantages of using an FPGA over MSI devices or SSI devices? 4. In this experiment, the enable line is used to obtain a 4-to-16 decoder. What needs to be added to obtain a 5-to-32 decoder using the D3 8E 3-to-8 decoders? Draw a schematic of a 5-to-32 decoder (using four D3 8E 3 to 8 decoders).

Explanation / Answer

1.1.       I am not very sure about your question. NAND gate has only one output so do you want to ask Logically or the inputs or outputs

If it is inputs the by using DE Morgan

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