A 0.8-V, 1.54-pJ/940-MHz Dual-Mode Logic-Based 16×16-b Booth Multiplier in 16-nm FinFET
Netanel Shavit, Inbal Stanger, Ramiro Taco, Marco Lanuzza, Alexander Fish
Abstract
The dual-mode logic (DML) defines runtime adapted digital architectures that switch to either improved performance or lower energy consumption as a function of the actual computational workload. This flexibility is demonstrated for the first time by silicon measurements on a 16 × 16 -b Booth multiplier fabricated as a part of an ultralow-power digital signal processing (DSP) architecture for 16-nm FinFET technology. When running in the full-speed mode, the DML multiplier can achieve a performance boost of 19.5% as compared to the equivalent standard CMOS design. The same circuit saves precious energy (-27%, on average) when the energy-efficient mode is enabled, while occupying 13% less silicon area.