Computing-In-Memory Using 1T1C Embedded DRAM Cell with Micro Sense Amplifier for Enhancing Throughput

Do Yoon Lim, In Jun Jung, Do Han Kim, Seong Ook Jung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The proposed 1T1C embedded DRAM (eDRAM) based compute-in-memory (CIM) architecture resolves Von-Neumann memory-bottleneck issue that degrades energy consumption and performance in processing neural networks. The proposed CIM architecture uses 1T1C eDRAM cell for better memory density compared to other eDRAM cells (e.g., 2T1C, 3T1C, 4T2C) based CIM architectures. However, the conventional 1T1C eDRAM cell based CIM architecture can only access a single row, unlike other eDRAM cell based CIM architectures because of the destructive read issue. The single-row access causes degradation of throughput. To overcome the limitation of single-row access, the conventional micro sense amplifier (uSA) is considered. However, the conventional uSA is suffered from the short circuit current during the MAC operation. Thus, the MAC operation results can be contaminated. To resolve the short circuit current issue, a newly designed uSA is proposed. The proposed uSA disconnects LBL to prevent uSA from affecting MAC operation results. By using the proposed uSA in every LBL, the proposed 1T1 C eDRAM cell based CIM architecture accesses multiple rows in one column. As a result, the throughput of the proposed 1T1C eDRAM cell based CIM architecture is improved by 5.44X compared to the conventional 1T1C eDRAM cell based CIM architecture.

Original languageEnglish
Title of host publication2022 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665464345
DOIs
Publication statusPublished - 2022
Event2022 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2022 - Yeosu, Korea, Republic of
Duration: 2022 Oct 262022 Oct 28

Publication series

Name2022 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2022

Conference

Conference2022 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2022
Country/TerritoryKorea, Republic of
CityYeosu
Period22/10/2622/10/28

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Media Technology
  • Instrumentation

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