CHAPTER 1

Chip Design is as interesting as Programming. For building OR gate from NAND,we need to remember the basic theorems in Digital electronics.De_Morgan laws



DMUX


MUX





DMux4Way



CHIP DMux4Way {

IN in, sel[2];

OUT a, b, c, d;

PARTS:


DMux(in=in, sel=sel[1], a=mux1, b=mux2);

DMux(in=mux1, sel=sel[0], a=a, b=b);

DMux(in=mux2, sel=sel[0], a=c, b=d);

}




DMux8Way

CHIP DMux8Way {

IN in, sel[3];

OUT a, b, c, d, e, f, g, h;

PARTS:

DMux(in=in, sel=sel[2], a=mux1, b=mux2);
DMux4Way(in=mux1, sel[0]=sel[0], sel[1]=sel[1], a=a,b=b,c=c,d=d);
DMux4Way(in=mux2, sel[0]=sel[0], sel[1]=sel[1], a=e,b=f,c=g,d=h);

}

AND16 chip

built the AND16

This is the second chip tested successfully

Building all the chips

First chip AND built from NAND gate. The first chapter project is to build all the chips from NAND gate.One who finish the first chapter should build all the chips from NAND and test it.



reference link http://www1.idc.ac.il/tecs/plan.html