Low‐power and area efficient binary coded decimal adder design using a look up table‐based field programmable gate array. Issue 3 (1st May 2016)

• Record Type: Journal Article
• Authors: Sworna, Zarrin Tasnim; UlHaque, Mubin; Tara, Nazma; Hasan Babu, Hafiz Md.; Biswas, Ashis Kumar
• Is Part Of: IET circuits, devices & systems. Volume 10:Issue 3(2016)
• Page Start: 163
• Page End: 172
• Publication Date: 2016-05-01
• Subjects: field programmable gate arrays -- binary codes -- adders -- low-power electronics -- table lookup; field programmable gate array -- FPGA -- low-power area efficient binary coded decimal adder -- look up table -- BCD addition -- BCD digit -- controller circuit -- read-write voltage -- memory cell -- read operation -- write operation -- compact BCD adder -- 2-input LUT -- power consumption; Electronic circuits -- Periodicals; Electronic systems -- Periodicals; 621.381505
• DOI: 10.1049/iet-cds.2015.0213
• Languages: English
• ISSNs: 1751-858X

Abstract

Abstract : The binary coded decimal (BCD) system is suitable for digital communication, which can be designed by field programmable gate array (FPGA) technology, where look up table (LUT) is one of the major components of FPGA. In this study, the authors proposed a low power and area efficient LUT‐based BCD adder which is constructed basically in three steps: First, a new technique is introduced for the BCD addition to obtain the correct BCD digit. Second, a new controller circuit of LUT is presented which is designed to select and send Read/Write voltage to memory cell for performing Read or Write operation. Finally, a compact BCD adder is designed using the proposed LUT. Their proposed 2‐input LUT outperforms the existing best one providing 65.8% improvement in terms of area, 44.1% for Read operation and 43.5% for Write operation in power consumption. The proposed BCD adder using FPGA gains a radical achievement compared with the existing best‐known LUT‐based BCD adder providing prominent better performance of 65.6% in area and 48.3% less power consumption.