Apparatuses, methods, and systems for stochastic memory circuits using magnetic tunnel junctions

7) A system, comprising:

• a stochastic memory array having an output terminal and a plurality of bit cells, each of the plurality of bit cells corresponding to a weight value and including a switch device to produce a stochastic switching output signal;
• a logic circuit having an input terminal and an output terminal coupled at the input terminal to the output terminal of the stochastic memory array to receive the stochastic switching output signal and based in part on the stochastic switching output signal, to determine whether the weight value is to be updated;
• a weight memory array coupled to the output terminal of the logic circuit to receive and store the updated weight value, if the weight value is to be updated;
• and
• a processor coupled to the weight memory array to access the updated weight value from the weight memory array, if the weight value is to be updated, and to apply a learning rule to the updated weight value.