Half-select free bit-line sharing 12T SRAM with double-adjacent bits soft error correction and a reconfigurable FPGA for low-power applicationsShow others and affiliations
2019 (English)In: AEU - International Journal of Electronics and Communications, ISSN 1434-8411, E-ISSN 1618-0399, Vol. 104, no May, p. 10-22Article in journal (Refereed) Published
Abstract [en]
This work presents a half-select free 12T SRAM cell with Data-Dependent Feedback Cutting approach to improve the write ability and isolated read path to enhance the read stability. The enhanced read and write ability is 1.95×" role="presentation"> and 2.84×" role="presentation"> larger respectively than that of the conventional 6T cell at 0.4 V. The half-select free behavior of proposed cell using the cross-point read/write structure facilitates the bit-interleaving memory architecture to effectively reduce the multi-bits soft error occurrence. The incorporated PMOS stacking effect in inverter pairs of the proposed cell offers the reduced leakage power which is 0.59×" role="presentation"> to that of 6T, at 0.4 V supply. To further minimize the leakage power at array level, the bit lines between two adjacent cells have been shared that consumes only 0.38×" role="presentation"> leakage power than that of the conventional 6T array for a 1 KB macro. Moreover, a Reconfigurable FPGA architecture is proposed for low power applications. The simulated static and active power consumption of 12T SRAM based reconfigurable FPGA is 0.22×" role="presentation"> and 0.45×" role="presentation"> when compared with the regular 12T FPGA. Finally, a Double Adjacent-bits Error Detection and Correction (DAEDC) scheme is suggested for the proposed bit-interleaved 12T SRAM array, to reduce the soft error effects.
Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 104, no May, p. 10-22
Keywords [en]
Low power, Static random access memory (SRAM), Static noise margin (SNM), Leakage power, Error tolerance
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electronic systems
Identifiers
URN: urn:nbn:se:ltu:diva-73997DOI: 10.1016/j.aeue.2019.02.018ISI: 000467195000002Scopus ID: 2-s2.0-85063092549OAI: oai:DiVA.org:ltu-73997DiVA, id: diva2:1316707
Note
Validerad;2019;Nivå 2;2019-05-20 (oliekm)
2019-05-202019-05-202022-07-04Bibliographically approved