Bi directional buffer 74ls245 , Electrical Engineering

Bi Directional Buffer 74LS245

This types  of bi directional  buffer is required for data  bus as it has  to function as bi directional bus. The logic  diagram  of such  buffer is shown  in figure. The  direction of data  flow is  controlled  by Dir  pin. When DIR  is high  data flow  from  A bus to B bus  when DIR  is low  data flow  from B to A .

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