A memory cell comprises: a weight storage circuit configured, when a write word line is activated, to receive a weight voltage, according to a weight value to be stored through a write bit line, and transmit the weight voltage to a storage node, and, when a read word line is activated, to drop a read voltage precharged, according to a voltage level of the storage node, to a voltage level of the read word line; and a MAC operation circuit configured, when a data enable line is activated, to transmit an input voltage according to a value of input data to a coupling node through a data input line, and, to discharge the coupling node according to a level of the weight voltage stored in the storage node, and, when the data enable line is reactivated, to transmit a voltage change of the coupling node to a multiply word line.

Methods, systems and computer program products for computing and summing up multiple products in a single multiplier are provided. Aspects include receiving a first number and a second number, creating partial products of the first number and the second number based on a multiplication of the first number and the second number, and reducing the number of partial products to create an intermediate result. Aspects also include receiving a third number and a fourth number, creating partial products of the third number and the fourth number based on a multiplication of the third number and the fourth number, creating a reduction tree and adding the intermediate result to the reduction tree. Aspects further include reducing the number of partial products in the reduction tree to create a second sum value and a second carry value and adding the second sum value and the second carry value to create a result.

Methods, systems and computer program products for computing and summing up multiple products in a single multiplier are provided. Aspects include receiving a first number and a second number, creating partial products of the first number and the second number based on a multiplication of the first number and the second number, and reducing the number of partial products to create an intermediate result. Aspects also include receiving a third number and a fourth number, creating partial products of the third number and the fourth number based on a multiplication of the third number and the fourth number, creating a reduction tree and adding the intermediate result to the reduction tree. Aspects further include reducing the number of partial products in the reduction tree to create a second sum value and a second carry value and adding the second sum value and the second carry value to create a result.