Abstract
Biomedical systems often require several kb of embedded memory and are typically operated in the subthreshold (sub-VT) domain for good energy-efficiency. Embedded memories and their leakage current can easily dominate the overall silicon area and the total power consumption, respectively. Gain-cell based embedded DRAM arrays provide a high-density, low-leakage alternative to SRAM for such systems; however, they are typically designed for operation at nominal or only slightly scaled supply voltages. For the first time, this paper presents a gain-cell array which is fully functional in the sub-VT regime and achieves a data retention time that is more than 104 times higher than the access time. Monte Carlos simulations show that the 2 kb gain-cell array, implemented in a mature 0.18μm CMOS node and supplied with a sub-VT voltage of 400mV, exhibits robust write and read operations at 500 kHz under parametric variations and has over 99% availibilty for read and write access.
| Original language | English |
|---|---|
| Title of host publication | 2012 IEEE Subthreshold Microelectronics Conference, SubVT 2012 |
| DOIs | |
| State | Published - 1 Dec 2012 |
| Event | 2012 IEEE Subthreshold Microelectronics Conference, SubVT 2012 - Waltham, MA, United States Duration: 9 Oct 2012 → 10 Oct 2012 |
Publication series
| Name | 2012 IEEE Subthreshold Microelectronics Conference, SubVT 2012 |
|---|
Conference
| Conference | 2012 IEEE Subthreshold Microelectronics Conference, SubVT 2012 |
|---|---|
| Country/Territory | United States |
| City | Waltham, MA |
| Period | 9/10/12 → 10/10/12 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 7 Affordable and Clean Energy
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Fingerprint
Dive into the research topics of 'A sub-VT 2T gain-cell memory for biomedical applications'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver