A compact and general-purpose neural chip with electrically programmable synapses

A neural chip with 64 neurons and 4096 DRAM-like programmable synapses has been designed and fabricated in 29 mm/sup 2/ area using the 2- mu m scalable CMOS process from MOSIS Service. With 0.2-s refresh cycle, 8-b accuracy in synapses can be achieved for image processing. A system simulation result of image restoration using the programmable synapse chip architecture is also presented. An industrial-level 500-neuron chip with the fully connected synapse array can be implemented in 1- mu m CMOS technologies.<>