View tc74hc241p datasheet:

TC74HC241P IL00D C-MOS 3-STATE NONINVERTING BUFFER/LINE DRIVER/LINE RECEIVER —TOP VIEW— G2 YA1 B4 YA2 B3 YA3 B2 YA4 B1 20 19 18 17 16 15 14 13 12 11 2 18 VDD 4 16 6 14 8 12 G1 1 GND 1 2 3 4 5 6 7 8 9 10 11 9 G1 A1 YB4 A2 YB3 A3 YB2 A4 YB1 13 7 15 5 17 3 A YA B YB G2 1 19 19 G1 G2 G1 A YA G2 B YB 0 ; LOW LEVEL 0 0 0 1 0 0 1 ; HIGH LEVEL 0 1 1 1 1 1 X ; DON’T CARE 1 X HI-Z 0 X HI-Z HI-Z ; HIGH IMPEDANCE