View sn74abt541bns-e05 datasheet:

SN74ABT541BNS-E05 IL08 BiC-MOS BUFFERS/DRIVERS WITH 3-STATE OUTPUTS —TOP VIEW— 2 18 A1 Y1 IN 1 VDD 20 OE1 3 17 A2 Y2 4 16 A3 Y3 A1 IN 2 19 IN OE2 5 15 A4 Y4 6 14 A5 Y5 A2 IN 3 18 Y1 OUT 7 13 A6 Y6 8 12 A7 Y7 A3 IN 4 17 Y2 OUT 9 11 A8 Y8 OE1 OE2 A4 IN 5 16 Y3 OUT 1 19 A5 IN 6 15 Y4 OUT INPUTS OUTPUT A6 IN 7 14 Y5 OUT A Y OE1 OE2 0 0 0 0 A7 IN 8 13 Y6 OUT 0 0 1 1 1 x x HI-Z A8 IN 9 12 Y7 OUT x 1 x HI-Z 0 : LOW LEVEL 10 GND 11 Y8 OUT 1 : HIGH LEVEL x : DON’T CARE HI-Z : HIGH IMPEDANCE INPUT 1 A1 - A8 : DATA OE1 19 , : OUTPUT ENABLE OE1 OE2 OE2 OUTPUT 2 18 A1 Y1 Y1 - Y8 : DATA TO 7 OTHER CHANNELS