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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Imam, N. Akopyan, F. Arthur, J. Merolla, P. Manohar, R. Modha, D.S. |
| Copyright Year | 2012 |
| Abstract | We design and implement a key building block of a scalable neuromorphic architecture capable of running spiking neural networks in compact and low-power hardware. Our innovation is a configurable neurosynaptic core that combines 256 integrate-and-fire neurons, 1024 input axons, and 1024x256 synapses in 4.2mm2 of silicon using a 45nm SOI process. We are able to achieve ultra-low energy consumption 1) at the circuit-level by using an asynchronous design where circuits only switch while performing neural updates, 2) at the core-level by implementing a 256 neural fan out in a single operation using a crossbar memory, and 3) at the architecture-level by restricting core-to-core communication to spike events, which occur relatively sparsely in time. Our implementation is purely digital, resulting in reliable and deterministic operation that achieves for the first time one-to-one correspondence with a software simulator. At 45pJ per spike, our core is readily scalable and provides a platform for implementing a wide array of real-time computations. As an example, we demonstrate a sound localization system using coincidence-detecting neurons. |
| Starting Page | 25 |
| Ending Page | 32 |
| File Size | 891897 |
| Page Count | 8 |
| File Format | |
| ISBN | 9781467313605 |
| ISSN | 15228681 |
| e-ISBN | 9780769546889 |
| DOI | 10.1109/ASYNC.2012.12 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-05-07 |
| Publisher Place | Denmark |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Nerve fibers Synchronization Delay Arrays Servers Silicon Neurons Neuromorphic Neurosynaptic Core Digital Neurons Asynchronous AER |
| Content Type | Text |
| Resource Type | Article |
| Subject | Engineering |
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