Design of CMOS constant switching current flip-flop

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© The Institution of Engineering and Technology
Published 28/07/2012

Abstract

A novel flip-flop that has constant switching current profile is proposed. The proposed flip-flop contributes no pattern dependent current consumption compared to a conventional sense amplifier-based flip-flop. It can be useful for supplying noise-sensitive analogue circuits or adopted in smart cards or cryptographic processors, which can secure sensitive data from differential power analysis.

Inspec keywords: smart cards; CMOS digital integrated circuits; cryptography; flip-flops

Other keywords: conventional sense amplifier-based flip-flop; constant switching current profile; differential power analysis; noise-sensitive analogue circuits; smart cards; sensitive data security; CMOS; cryptographic processors

Subjects: Cryptography; Logic circuits; Logic and switching circuits; Data security; CMOS integrated circuits

References

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      • Tiri, K.: `A dynamic and differential CMOS logic with signal independent power consumption to withstand differential power analysis on smart cards', European Solid-State Circuits Conf., 2002, Florence, Italy, p. 403–406
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