Bit-swapping LFSR for low-power BIST

AS Abu-Issa, Steven Quigley

Research output: Contribution to journalArticle

27 Citations (Scopus)


A modified linear feedback shift register (LFSR) is presented that reduces the number of transitions at the inputs of the circuit-under-test by 25% using a bit-swapping technique. Experimental results on ISCAS'85 and 89 benchmark circuits show up to 45% power reduction during test. They also show that the proposed design can be combined with other techniques to achieve a very substantial power reduction of up to 63%.
Original languageEnglish
Pages (from-to)401-403
Number of pages3
JournalElectronics Letters
Issue number6
Publication statusPublished - 1 Jan 2008


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