Which one of the following four logic equations would be valid for the o6 output

Question

1. Which one of the following four logic equations would be valid for the o6 output of a decoder with address lines a0, a1, a2 and outputs o0, o1, o2, o3, o4, o5, o6, o7?
   o6=(a0 AND (a1 AND a2))
   o6=(a0 AND NOT(a1 AND a2))
   o6=((a0 AND a1) AND NOT(a2))
   o6=(NOT(a0) AND (a1 AND a2))
   None of the above is correct
2. Which of the following statements is/are true?
   The MFC signal is not used when writing to memory
   Allowing a few simultaneous writers to a bus is easy
   SRAM usually takes more power per bit held than DRAM
   In general, outputs are enabled at the start of a clock cycle
   There is a race between the address and data lines when writing to memory

Explanation / Answer

1.o6=(NOT(a0) AND (a1 AND a2)).... its the correct answer,the equallent=(a0)'a1a2, where its denote the minterm of 110 which is equal to '6'

2.The following answers are true

The MFC signal is not used when writing to memory

SRAM usually takes more power per bit held than DRAM

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