1 research outputs found
A 1.2-V 162.9-pJ/cycle Bitmap Index Creation Core with 0.31-pW/bit Standby Power on 65-nm SOTB
The ability to maximize the performance during peak workload hours and
minimize the power consumption during off-peak time plays a significant role in
the energy-efficient systems. Our previous work has proposed a high-performance
multi-core bitmap index creator (BIC) in a field-programmable gate array that
could deliver higher indexing throughput than central processing units and
graphics processing units. This brief extends the previous study by focusing on
the application-specific integrated circuit implementation of the proposed BIC
in a 65-nm silicon-on-thin-buried-oxide (SOTB) CMOS process. The BIC chip can
operate with different supply voltage from 0.4 V to 1.2 V. In the active mode
with the supply voltage of 1.2 V, the BIC chip is fully operational at 41 MHz
and consumes 162.9 pJ/cycle. In the standby mode with the supply voltage of 0.4
V and clock-gating technique, the power consumption was reduced to 10.6 uW. The
standby power is also dramatically reduced to 2.64 nW due to the utilization of
reverse back-gate biasing technique. This achievement is considerable
importance to the energy-efficient systems.Comment: Submitted to IEEE Transactions on Circuits and Systems II: Express
Brie