VLSI Design_ALM

     The design of an ALU is based on __________

• Sequential logic

• Combinational logic

• Multiplexing

• De-Multiplexing

  How many transistors are required for SRAM_____

• 6

• 7

• 8

• 9

    Which of the following has refreshes control mechanism_____

• DRAM

• SRAM

• FLIPFLOP

• LATCH

In which of the following adders, the carry ripple delay is eliminated

• Half adder

• Full adder

• Carry Look ahead adder

• Parallel adder

   In adders, the previous carry can also be given by

• propagate signal pk

• generate signal gk

• pk and gk

• sk

    Multipliers are built using

• binary adders

• binary subtractors

• dividers

• multiplexers

     Ripple counters are also called ____________

• SSI counters

• Asynchronous counters

• synchronous counters

• VLSI Counters

A counter circuit is usually constructed of ____________

• A number of latches connected in cascade form

• A number of NAND gates connected in cascade form

• A number of flip-flops connected in cascade

• A number of NOR gates connected in cascade form

A circuit that compares two numbers and determines their magnitude is called ____________

• Height comparator

• Size comparator

• Comparator

•    Magnitude comparator

      Barrel shifter is used for

• shifting data

• inversing data

• reversing data

• none of above