Abstract
Resistive random access memory (RRAM) based computation-in-memory (CIM) architectures are attracting a lot of attention due to their potential in performing fast and energy-efficient computing. However, the RRAM variability and non-idealities limit the computing accuracy of such architectures, especially for multi-operand logic operations. This paper pro-poses a voltage-based differential referencing-in-array scheme that enables accurate two and multi-operand logic operations for RRAM-based CIM architecture. The scheme makes use of a 2T2R cell configuration to create a complementary bitcell structure that inherently acts also as a reference during the operation execution; this results in a high sensing margin. More-over, the variation-sensitive multi-operand (N)AND operation is implemented using complementary-input (N)OR operation to further improve its accuracy. Simulation results for a post-layout extracted 512x512 (256Kb) RRAM-based CIM array show that up to 56 operand (N)OR/(N)AND operation can be accurately and reliably performed as opposed to a maximum of 4 operands supported by state-of-the-art solutions, while offering up to 11.4X better energy-efficiency.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2022 Design, Automation and Test in Europe Conference and Exhibition, DATE 2022 |
| Editors | Cristiana Bolchini, Ingrid Verbauwhede, Ioana Vatajelu |
| Publisher | IEEE |
| Pages | 1413-1418 |
| Number of pages | 6 |
| ISBN (Electronic) | 978-3-9819263-6-1 |
| ISBN (Print) | 978-1-6654-9637-7 |
| DOIs | |
| Publication status | Published - 2022 |
| Event | 2022 Design, Automation and Test in Europe Conference and Exhibition, DATE 2022 - Virtual, Online, Belgium Duration: 14 Mar 2022 → 23 Mar 2022 |
Conference
| Conference | 2022 Design, Automation and Test in Europe Conference and Exhibition, DATE 2022 |
|---|---|
| Country/Territory | Belgium |
| City | Virtual, Online |
| Period | 14/03/22 → 23/03/22 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
