View sn74lvt16835dggr datasheet:

SN74LVT16835DGGR IL08 C-MOS 18-BIT UNIVERSAL BUS DRIVER WTIH 3-STATE OUTPUTS —TOP VIEW— INPUTS OUTPUT 1 NC GND 56 LE CLK A Y OE 1 x x x HI-Z 2 NC NC 55 0 1 x 0 0 Y1 OUT 3 54 A1 IN 0 1 x 1 1 0 0 0 0 4 GND GND 53 0 0 1 1 Y2 OUT 5 52 A2 IN 0 0 1 x Y0 Y3 OUT 6 51 A3 IN 0 0 0 x Y0 0 : LOW LEVEL 7 VDD VDD 50 1 : HIGH LEVEL Y4 OUT 8 49 A4 IN x : DON’T CARE Y5 OUT 9 48 A5 IN HI-Z : HIGH IMPEDANCE Y6 OUT 10 47 A6 IN INPUT 11 GND GND 46 A1 - A18 : DATA Y7 OUT 12 45 A7 IN CLK : CLOCK LE : LATCH ENABLE Y8 OUT 13 44 A8 IN : OUTPUT ENABLE OE Y9 OUT 14 43 A9 IN Y10 OUT 15 42 A10 IN OUTPUT Y1 - Y18 : DATA Y11 OUT 16 41 A11 IN Y12 OUT 17 40 A12 IN 27 OE 18 GND GND 39 Y13 OUT 19 38 A13 IN 30 CLK Y14 OUT 20 37 A14 IN 2