Name
Title | ||
|---|---|---|
Energy-Efficient 4T SRAM Bitcell with 2T Read-Port for Ultra-Low-Voltage Operations in 28 nm 3D Monolithic CoolCubeTM Technology. |
Abstract | ||
|---|---|---|
This paper presents a 4T-based SRAM bitcell optimized both for write and read operations at ultra-low voltage (ULV). The proposed bitcell is designed to respond to the requirements of energy constrained systems, as in the case of most IoT-oriented circuits and applications. The use of 3D CoolCube (TM) technology enables the design of a stable 4T SRAM bitcell by using data-dependent back biasing. The proposed bitcell architecture provides a major reduction of the write operation energy consumption compared to a conventional 6T bitcell. A dedicated read port coupled to a virtual GND (VGND) ensures a full functionality at ULV of read operations. Simulation results show reliable operations down to 0.35 V close to six sigma (6 sigma) without any assist techniques (e.g. negative bitlines), achieving in worst case corner 300 ns and 125 ns in write and read access time, respectively. A 6x energy consumption reduction compared to a ULV ultra-low-leakage (ULL) 6T bitcell is demonstrated. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1145/3232195.3232210 | NANOARCH'18: PROCEEDINGS OF THE 14TH IEEE/ACM INTERNATIONAL SYMPOSIUM ON NANOSCALE ARCHITECTURES |
Keywords | Field | DocType |
SRAM,4T bitcell,ULV,Read port,Virtual GND | Logic gate,Access time,Computer science,Efficient energy use,Electronic engineering,Static random-access memory,Low voltage,Electronic circuit,Transistor,Electrical engineering,Energy consumption | Conference |
Citations | PageRank | References |
0 | 0.34 | 6 |
Authors | ||
10 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Reda Boumchedda | 1 | 3 | 1.24 |
| Jean-Philippe Noël | 2 | 23 | 7.54 |
| Bastien Giraud | 3 | 53 | 17.41 |
| adam makosiej | 4 | 5 | 3.61 |
| Marco Antonio Rios | 5 | 9 | 2.27 |
| Eduardo Esmanhotto | 6 | 0 | 0.34 |
| Emilien Bourde-Cicé | 7 | 0 | 0.34 |
| Mathis Bellet | 8 | 0 | 0.34 |
| D. Turgis | 9 | 11 | 4.96 |
| Edith Beigne | 10 | 536 | 52.54 |