Novel Low-Complexity and Low-Power Flip-Flop Design

In this paper, a compact and low-power true single-phase flip-flop (FF) design with fully static operations is presented. The design is developed by using various circuit-reduction schemes and features a hybrid logic style employing both pass transistor logic (PTL) and static complementary metal-oxi...

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Main Authors: Jin-Fa Lin, Zheng-Jie Hong, Chang-Ming Tsai, Bo-Cheng Wu, Shao-Wei Yu
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/9/5/783
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author Jin-Fa Lin
Zheng-Jie Hong
Chang-Ming Tsai
Bo-Cheng Wu
Shao-Wei Yu
author_facet Jin-Fa Lin
Zheng-Jie Hong
Chang-Ming Tsai
Bo-Cheng Wu
Shao-Wei Yu
author_sort Jin-Fa Lin
collection DOAJ
description In this paper, a compact and low-power true single-phase flip-flop (FF) design with fully static operations is presented. The design is developed by using various circuit-reduction schemes and features a hybrid logic style employing both pass transistor logic (PTL) and static complementary metal-oxide semiconductor (CMOS) logic to reduce circuit complexity. These circuit optimization measures pay off in various aspects, including smaller clock-to-Q (CQ) delay, lower average power, lower leakage power, and smaller layout area; and the transistor-count is only 17. Fabricated in TSMC 180 nm CMOS technology, it reduces by over 29% the chip area compared to the conventional transmission gate FF (TGFF). To further show digital circuit/system level advantages, a multi-mode shift register has been realized. Experimental measurement results at 1.8 V/4 MHz show that, compared with the TGFF design, the proposed design saves 64.7% of power consumption while reducing chip area by 26.2%.
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spelling doaj.art-112828526eb5491ea1193956d9395f9d2023-11-19T23:57:42ZengMDPI AGElectronics2079-92922020-05-019578310.3390/electronics9050783Novel Low-Complexity and Low-Power Flip-Flop DesignJin-Fa Lin0Zheng-Jie Hong1Chang-Ming Tsai2Bo-Cheng Wu3Shao-Wei Yu4Department of Information and Communication, Chaoyang University of Technology, Taichung 41349, TaiwanDepartment of Information and Communication, Chaoyang University of Technology, Taichung 41349, TaiwanDepartment of Information and Communication, Chaoyang University of Technology, Taichung 41349, TaiwanDepartment of Information and Communication, Chaoyang University of Technology, Taichung 41349, TaiwanDepartment of Information and Communication, Chaoyang University of Technology, Taichung 41349, TaiwanIn this paper, a compact and low-power true single-phase flip-flop (FF) design with fully static operations is presented. The design is developed by using various circuit-reduction schemes and features a hybrid logic style employing both pass transistor logic (PTL) and static complementary metal-oxide semiconductor (CMOS) logic to reduce circuit complexity. These circuit optimization measures pay off in various aspects, including smaller clock-to-Q (CQ) delay, lower average power, lower leakage power, and smaller layout area; and the transistor-count is only 17. Fabricated in TSMC 180 nm CMOS technology, it reduces by over 29% the chip area compared to the conventional transmission gate FF (TGFF). To further show digital circuit/system level advantages, a multi-mode shift register has been realized. Experimental measurement results at 1.8 V/4 MHz show that, compared with the TGFF design, the proposed design saves 64.7% of power consumption while reducing chip area by 26.2%.https://www.mdpi.com/2079-9292/9/5/783low powerflip-floppass transistor logicInternet of Things
spellingShingle Jin-Fa Lin
Zheng-Jie Hong
Chang-Ming Tsai
Bo-Cheng Wu
Shao-Wei Yu
Novel Low-Complexity and Low-Power Flip-Flop Design
Electronics
low power
flip-flop
pass transistor logic
Internet of Things
title Novel Low-Complexity and Low-Power Flip-Flop Design
title_full Novel Low-Complexity and Low-Power Flip-Flop Design
title_fullStr Novel Low-Complexity and Low-Power Flip-Flop Design
title_full_unstemmed Novel Low-Complexity and Low-Power Flip-Flop Design
title_short Novel Low-Complexity and Low-Power Flip-Flop Design
title_sort novel low complexity and low power flip flop design
topic low power
flip-flop
pass transistor logic
Internet of Things
url https://www.mdpi.com/2079-9292/9/5/783
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AT zhengjiehong novellowcomplexityandlowpowerflipflopdesign
AT changmingtsai novellowcomplexityandlowpowerflipflopdesign
AT bochengwu novellowcomplexityandlowpowerflipflopdesign
AT shaoweiyu novellowcomplexityandlowpowerflipflopdesign