Title :
8T SRAM with Mimicked Negative Bit-lines and Charge Limited Sequential sense amplifier for wireless sensor nodes
Author :
Sharma, Vibhu ; Cosemans, Stefan ; Ashouei, Maryam ; Huisken, Jos ; Catthoor, Francky ; Dehaene, Wim
Author_Institution :
ESAT-MICAS Lab., K.U. Leuven, Leuven, Belgium
Abstract :
This design sets a record low energy consumption (average RD/WR) of 2.65pJ/access for a 64kbit embedded SRAM operating at 90MHz in 65nm LP CMOS. This low energy and variability resilient SRAM macro ensures write-ability with an innovative Mimicked Negative Bit-line technique. The novel low energy Charge Limited Sequential sense amplifier consumes 11.36fJ/decision and obtains σVoffset of 14.297mV without requiring calibration.
Keywords :
CMOS memory circuits; low-power electronics; random-access storage; wireless sensor networks; 8T SRAM; LP CMOS; SRAM macro; charge limited sequential sense amplifier; embedded SRAM; low energy consumption; mimicked negative bit-lines; wireless sensor nodes; Calibration; Computer architecture; Energy consumption; Microprocessors; Random access memory; Temperature measurement; Transistors;
Conference_Titel :
ESSCIRC (ESSCIRC), 2011 Proceedings of the
Conference_Location :
Helsinki
Print_ISBN :
978-1-4577-0703-2
Electronic_ISBN :
1930-8833
DOI :
10.1109/ESSCIRC.2011.6044939
