Device and method with computational memory

Abstract

A computational memory device and a method using the computational memory device are provided. The computational memory device includes memory banks configured to store weight data of a neural network model and a weight memory block configured to provide at least some of the weight data from memory banks in response to a weight request, a computational memory block physically stacked on the weight memory block such faces of the respective blocks face each other, the computational memory block configured to perform a multiply-accumulate (MAC) operation between the at least some of the weight data and at least some of input data by using a bit cell array including bit cells, and a communication interface configured to perform communication between the weight memory block and the computational memory block.