US Patent 11500629 Processing-in-memory (PIM) system including multiplying-and-accumulating (MAC) circuit

A multiplying-and-accumulating (MAC) circuit includes a multiplying circuit and an adding circuit. The multiplying circuit includes a first multiplier and a second multiplier, and each of the first multiplier and the second multiplier performs a multiplying calculation for first input data with N bits and second input data with M bits to output multiplication result data with (N+M) bits (where, “N” and “M” are natural numbers which are equal to or greater than one). The adding circuit includes an adder which performs an adding calculation for the multiplication result data of the first multiplier and the multiplication result data of the second multiplier to output addition result data with (N+M) bits.