Design and construct a circuit that will demonstrate the operation of a static RAM. Eight input-output (I/O) lines will be connected to eight logic indicators (LEDs) in your circuit. Use eight input logic switches for data input to the unit. The switches will connect to the I/O pins through a tri-state buffer (74LS244). The four low order address lines will connect to four other logic switches. Set the remaining address lines to ground. Note that the tri-state buffer will act to isolate the logic switches from the memory outputs during a read operation. It will set the buffer to the high impedance state when reading the memory. See your class notes for wiring instructions.