View sn74abt16244adl datasheet:

SN74ABT16244ADL (1/2) IL08 BIC-MOS 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS —TOP VIEW— 1 1OE 47 2 IN 1 48 IN 1OE 2OE 1A1 1Y1 46 3 1Y1 OUT 2 47 1A1 IN 1A2 1Y2 44 5 1A3 1Y3 1Y2 OUT 3 46 1A2 IN 43 6 1A4 1Y4 48 4 GND GND 45 2OE 41 8 2A1 2Y1 1Y3 OUT 5 44 1A3 IN 40 9 2A2 2Y2 38 11 1Y4 OUT 6 43 1A4 IN 2A3 2Y3 37 12 7 VDD VDD 42 2A4 2Y4 25 3OE 2Y1 OUT 8 41 2A1 IN 36 13 3A1 3Y1 35 14 2Y2 OUT 9 40 2A2 IN 3A2 3Y2 33 16 3A3 3Y3 10 GND GND 39 32 17 3A4 3Y4 24 2Y3 OUT 11 38 2A3 IN 4OE 30 19 4A1 4Y1 2Y4 OUT 12 37 2A4 IN 29 20 4A2 4Y2 3Y1 OUT 13 36 3A1 IN 27 22 4A3 4Y3 26 23 3Y2 OUT 14 35 3A2 IN 4A4 4Y4 15 GND GND 34 3Y3 OUT 16 33 3A3 IN INPUT 3Y4 OUT 17 32 3A4 IN 1A1 - 1A4 2A1