Reconfigurable Neural Net Chip with 32K Connections

Part of Advances in Neural Information Processing Systems 3 (NIPS 1990)

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H. P. Graf, R. Janow, D. Henderson, R. Lee


We describe a CMOS neural net chip with a reconfigurable network archi(cid:173) tecture. It contains 32,768 binary, programmable connections arranged in 256 'building block' neurons. Several 'building blocks' can be connected to form long neurons with up to 1024 binary connections or to form neurons with analog connections. Single- or multi-layer networks can be imple(cid:173) mented with this chip. We have integrated this chip into a board system together with a digital signal processor and fast memory. This system is currently in use for image processing applications in which the chip extracts features such as edges and corners from binary and gray-level images.