pinout NAND 1 Input A 2 Input B 3 Output Y end pinout basedesign MY_DESIGN frame CHIP1 0 AAA_DESIGN 1 BBB_DESIGN 2 CCC_DESIGN 3 DDD_DESIGN end frame frame CHIP2 0 EEE_DESIGN 1 FFF_DESIGN 2 GGG_DESIGN end frame