Name
Title | ||
|---|---|---|
27.2 M0N0 - A Performance-Regulated 0.8-to-38MHz DVFS ARM Cortex-M33 SIMD MCU with 10nW Sleep Power. |
Abstract | ||
|---|---|---|
Recent research has shown subthreshold operation to reduce active energy in low-power MCUs [1], [2], [5]. However, some applications impose additional constraints. For battery-powered sensor nodes deployed in remote locations, the MCU may lie dormant for long periods, only waking up when a sensor detects activity. For such cases, the MCU needs very low sleep power to maximize battery lifetime, deterministic real-time response to capture rare sensor events, and energy-efficient operation with enough compute and memory to run useful workloads. This work shows a 65nm Arm Cortex-M33 SoC for constrained battery-powered sensor nodes achieving 10 nW sleep power (4 KB$ retention) with fine-grained DVFS and performance regulation from 0.8 MHz (0.40 V) to 38 MHz (0.75V) to address a range of real-time requirements across the operating range of 0-to-85° C and 1.0-to-1.5V battery voltage. Digital circuit optimizations reduce active power to 47µ W (20pJ/cycle) on a high-activity keyword spotting (KWS) workload. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1109/ISSCC19947.2020.9063136 | ISSCC |
DocType | Citations | PageRank |
Conference | 0 | 0.34 |
References | Authors | |
0 | 11 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Pranay Prabhat | 1 | 24 | 4.69 |
| Benoît Labbé | 2 | 0 | 0.68 |
| Graham Knight | 3 | 1 | 1.39 |
| Anand Savanth | 4 | 26 | 5.73 |
| Jonas Svedas | 5 | 0 | 0.34 |
| Matthew J. Walker | 6 | 0 | 0.34 |
| Supreet Jeloka | 7 | 41 | 6.41 |
| Philex Ming-Yan Fan | 8 | 0 | 0.68 |
| Fernando Garcia-Redondo | 9 | 0 | 0.34 |
| Thanusree Achuthan | 10 | 0 | 0.34 |
| James Myers | 11 | 32 | 7.98 |