Design of a Current Mode Multiplexed Circuit for Integrate & Fire Neuromorphic Systems

The design of a multi-chip architecture can be an effective solution to implement very large Artificial Neural Networks systems. Undoubtedly, the size of these systems often represents an arduous obstacle in the way of a deep and effective investigation on most of these innovative, “bio-inspired”, computational paradigms. This paper deals with the design and test of a couple of VLSI analogue chips based on Integrate and Fire Neuromorphic model well suited to carry out large systems. The particular current mode design is able to reduce the number of the analogue interconnections by employing a time-multiplexed technique for the inter-chip communication channels.