Hybrid Memory Architecture for Voltage Scaling in Ultra-Low-Power Multi-Core Biomedical Processors
- Conference Paper
Technology scaling enables today the design of sensor-based ultra-low cost chips well suited for emerging applications such as wireless body sensor networks, urban life and environment monitoring. Energy consumption is the key limiting factor of this up-coming revolution and memories are often the energy bottleneck mainly due to leakage power. This paper proposes an ultra-low power multi-core architecture targeting eHealth monitoring systems, where applications involve collection of sequences of slow biomedical signals and highly parallel computations at very low voltage. We propose a hybrid memory architecture that combines 6T-SRAM and 8T-SRAM operating in the same voltage domain and capable of dispatching at high voltage a normal operation and at low voltage a fully reliable small memory partition (8T) while the rest of the memory (6T) is state-retentive. Our architecture offers significant energy savings with a low area overhead in typical eHealth Compressed Sensing-based applications. Show more
Book titleDesign, Automation and Test in Europe Conference and Exhibition (DATE 2014)
Pages / Article No.
Organisational unit03996 - Benini, Luca / Benini, Luca
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