NEURONAL CIRCUIT CAPABLE OF IMPLEMENTING SYNAPTIC LEARNING

摘要

A synaptic integration circuit (30) for a neuromorphic chip includes a resistive memory synapse (S1-S3) which has an activation terminal (BA) for receiving a presynaptic action signal (Sa3 ) and a propagation terminal (BP) intended to be connected to said circuit to transmit a synaptic output signal which depends on the resistance of said memory. The circuit includes an accumulator (Cm) of the synaptic output signal, a comparator (Comp) configured to emit a postsynaptic pulse (So) if a threshold (Vm) is crossed by the accumulated output signal. It is also configured, when a presynaptic action signal is applied to the activation terminal, to impose a conductance modification voltage on the synapse by applying a postsynaptic action signal to the propagation terminal. Figure for the abstract: Figure 7