An analog neural processor is presented, which most accurately simulates the work of the human brain.

Rain Neuromorphics has developed a digital processor that contains 10,000 digital neurons. It will be released using a 180nm process technology.

The human brain is made up of about 90 billion neurons. It also has dendrites – these are receiving processes that collect impulses from other neurons and transmit them to the body of the neuron. A potential, such as an impulse or voltage, propagates along the dendrites, which causes the neuron to respond in one way or another.

The response of a neuron is also represented by an action potential: it spreads along other processes – axons. Usually, neurons have one axon, and at the end are synapses – this is the place where dendrites and other neurons interact.

The authors of the new work could not repeat the chemistry of the brain, but they reproduced the work of dendrites with unprecedented accuracy. Many dendrites are connected to each axon of a digital neuron. Also, synapses are located at the junction of dendrites and axons, only this is an electrical contact.

The developers set themselves the task of creating sparse matrices – in the process, they will produce a neural network, this is similar to what happens in the human brain during training.

The authors note that their development will be able to provide 125 million INT8 parameters for processing vision, speech, natural language. Power consumption will be less than 50W.

Production of the first commercial prototypes will begin in 2024.