View sn74lvt16952dggr datasheet:

SN74LVT16952DGGR (1/2) IL08 C-MOS 16-BIT REGISTERED TRANSCEIVERS WTIH 3-STATE OUTPUTS —TOP VIEW— INPUTS OUTPUT 1 IN 1 56 1 IN CLKAB A B OEAB OEBA CLKENAB OEAB 1 x 0 x B0 1CLKAB IN 2 55 1CLKBA IN x 0 0 x B0 1 IN 3 54 1 IN CLKENAB CLKENBA 0 0 0 0 0 0 1 1 4 GND GND 53 x x 1 x HI-Z 1A1 I/O 5 52 1B1 I/O A-to-B data flow is shown; B-to-A data flow is 1A2 I/O 6 51 1B2 I/O similar but uses , CLKBA and CLKENBA OEBA 7 VDD VDD 50 0 : LOW LEVEL 1A3 I/O 8 49 1B3 I/O 1 : HIGH LEVEL x : DON’T CARE 1A4 I/O 9 48 1B4 I/O HI-Z : HIGH IMPEDANCE 1A5 I/O 10 47 1B5 I/O 11 GND GND 46 INPUT 1 , 1 , : OUTPUT ENABLE OEAB OEBA 1A6 I/O 12 45 1B6 I/O 2 , 2 OEAB OEBA 1A7 I/O 13 44 1B7 I/O 1 , 1 , : CLOCK ENABLE CLKENAB CLKENBA 1A8 I/O 14 43 1B8 I/O 2