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An 8 Bit 124 TOPSW Phase-Domain MAC Circuit for Energy-Constrained Deep Learning
提出一种低功耗8位相位域MAC电路，用于物联网边缘设备的深度学习加速器。
12.4 TOPS/W
相位域MAC低功耗深度学习加速器物联网门控环形振荡器
▸基于门控环形振荡器的高效模拟累加
▸双向架构实现面积与数字MAC相当
▸异步读出技术和两步数字时间转换器提升系统吞吐量
Abstract
A small-gate-count 8 bit bidirectional phase-domain
MAC (PMAC) circuit is proposed to minimize both area and
energy consumption of extremely energy-efficient deep neural
network (DNN) accelerators, targeting the Internet-of-Things
(IoT) edge devices operating with very strict power budgets (e.g.,
energy harvesting). PMAC consumes significantly less energy
than standard fully digital MACs, due to its efficient analog
accumulation nature based on gated-ring oscillator (GRO). The
architectural analysi