Manchester, Dresden, Globalfoundries produce SpiNNaker2 chip

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The SpiNNaker neural networking platform has its second chip iteration, designed in 22nm FDSOI manufacturing process of foundry chip maker Globalfoundries Inc.

www.eenewseurope.com, Jul. 27, 2021 – 

The SpiNNaker2 – codenamed JIB2 – is a spiking neural networking chip intended to be used in 70,000 chip, 10 million ARM core 'SpiNNcloud' system at Technische Universität Dresden. It will also be offered for sale through a startup company in Dresden called SpiNNcloud.

A roadmap shown in 2018 called for JIB2 to contain 144 Cortex-M4F cores plus power management, low-swing serial I/O, four LPDDR4 memory interfaces connecting to 8Gbytes of LPDDR4 memory. JIB2 is designed in 22FDX from Globalfoundries, a 22nm fully depleted silicon-on-insulator (FDSOI) manufacturing process.

The SpiNNaker2 chip was realized using the adaptive body biasing IP platform (ABX) of Racyics GmbH. This enables JIB2 to operate at the minimum energy point of the processing elements at 0.5V with additional support of dynamic voltage and frequency scaling for instantaneous high performance on demand.

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