h Vdd! l GND! clock Vdd! 1 vector INA A3 A2 A1 A0 vector INB B1 B0 w Z INB INA V INA 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 V INB 00 01 10 11 00 01 10 11 00 01 10 11 00 01 10 11 R q