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Ultra low power 8-bit microcontroller using Super Cut-Off CMOS (SCCMOS)

As the advances of VLSI technology, low power design has become an important topic in VLSI design. Scaling down supply voltage is an effective way for power reduction because of its quadratic relationship to dynamic power. This project is to design an ultra low power 8-bit microcontroller using su...

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Bibliographic Details
Main Author:	Sa Nuth Nai Chuan
Other Authors:	Rizalafande Che Ismail (Advisor)
Format:	Learning Object
Language:	English
Published:	Universiti Malaysia Perlis 2008
Subjects:	Super cut-off CMOS Microprocessors Integrated circuits Very Large Scale Integration (VLSI) Multiple Threshold CMOS (MTCMOS) Metal oxide semiconductors, Complementary Semiconductors Digital control systems
Online Access:	http://dspace.unimap.edu.my/xmlui/handle/123456789/1932
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id	my.unimap-1932
record_format	dspace
spelling	my.unimap-19322008-10-16T03:51:06Z Ultra low power 8-bit microcontroller using Super Cut-Off CMOS (SCCMOS) Sa Nuth Nai Chuan Rizalafande Che Ismail (Advisor) Super cut-off CMOS Microprocessors Integrated circuits Very Large Scale Integration (VLSI) Multiple Threshold CMOS (MTCMOS) Metal oxide semiconductors, Complementary Semiconductors Digital control systems As the advances of VLSI technology, low power design has become an important topic in VLSI design. Scaling down supply voltage is an effective way for power reduction because of its quadratic relationship to dynamic power. This project is to design an ultra low power 8-bit microcontroller using super cut-off CMOS (SCCMOS) implemented in Mentor Graphics tools. SCCMOS circuits use low threshold voltage with an inserted gate bias generator. An NMOS transistor is inserted at the bottom of the circuit. For analysis purposes, the designs are constructed using MTCMOS and the simulation results have been compared in terms of power consumption, delay, speed, power delay product (PDP) and area (in number of transistor). The total power consumption is almost equal in active mode for both techniques. In standby mode, MTCMOS circuit consumes power 15.6609nWatt less than SCCMOS circuit. MTCMOS circuit produces delay 9.4ns higher than SCCMOS circuit thus SCCMOS circuit lead MTCMOS circuit by 35.88MHz in speed. For PDP, SCCMOS circuit has 17.8% PDP less than MTCMOS circuit. The design using MTCMOS technique uses extra 20% of the transistors compared to the design using SCCMOS. As a result, SCCMOS circuit is better than MTCMOS circuit because SCCMOS circuit has lower PDP. Lower PDP meaning that the power is better translated into speed of operation. 2008-09-03T08:38:06Z 2008-09-03T08:38:06Z 2007-04 Learning Object http://hdl.handle.net/123456789/1932 en Universiti Malaysia Perlis School of Microelectronic Engineering
institution	Universiti Malaysia Perlis
building	UniMAP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Perlis
content_source	UniMAP Library Digital Repository
url_provider	http://dspace.unimap.edu.my/
language	English
topic	Super cut-off CMOS Microprocessors Integrated circuits Very Large Scale Integration (VLSI) Multiple Threshold CMOS (MTCMOS) Metal oxide semiconductors, Complementary Semiconductors Digital control systems
spellingShingle	Super cut-off CMOS Microprocessors Integrated circuits Very Large Scale Integration (VLSI) Multiple Threshold CMOS (MTCMOS) Metal oxide semiconductors, Complementary Semiconductors Digital control systems Sa Nuth Nai Chuan Ultra low power 8-bit microcontroller using Super Cut-Off CMOS (SCCMOS)
description	As the advances of VLSI technology, low power design has become an important topic in VLSI design. Scaling down supply voltage is an effective way for power reduction because of its quadratic relationship to dynamic power. This project is to design an ultra low power 8-bit microcontroller using super cut-off CMOS (SCCMOS) implemented in Mentor Graphics tools. SCCMOS circuits use low threshold voltage with an inserted gate bias generator. An NMOS transistor is inserted at the bottom of the circuit. For analysis purposes, the designs are constructed using MTCMOS and the simulation results have been compared in terms of power consumption, delay, speed, power delay product (PDP) and area (in number of transistor). The total power consumption is almost equal in active mode for both techniques. In standby mode, MTCMOS circuit consumes power 15.6609nWatt less than SCCMOS circuit. MTCMOS circuit produces delay 9.4ns higher than SCCMOS circuit thus SCCMOS circuit lead MTCMOS circuit by 35.88MHz in speed. For PDP, SCCMOS circuit has 17.8% PDP less than MTCMOS circuit. The design using MTCMOS technique uses extra 20% of the transistors compared to the design using SCCMOS. As a result, SCCMOS circuit is better than MTCMOS circuit because SCCMOS circuit has lower PDP. Lower PDP meaning that the power is better translated into speed of operation.
author2	Rizalafande Che Ismail (Advisor)
author_facet	Rizalafande Che Ismail (Advisor) Sa Nuth Nai Chuan
format	Learning Object
author	Sa Nuth Nai Chuan
author_sort	Sa Nuth Nai Chuan
title	Ultra low power 8-bit microcontroller using Super Cut-Off CMOS (SCCMOS)
title_short	Ultra low power 8-bit microcontroller using Super Cut-Off CMOS (SCCMOS)
title_full	Ultra low power 8-bit microcontroller using Super Cut-Off CMOS (SCCMOS)
title_fullStr	Ultra low power 8-bit microcontroller using Super Cut-Off CMOS (SCCMOS)
title_full_unstemmed	Ultra low power 8-bit microcontroller using Super Cut-Off CMOS (SCCMOS)
title_sort	ultra low power 8-bit microcontroller using super cut-off cmos (sccmos)
publisher	Universiti Malaysia Perlis
publishDate	2008
url	http://dspace.unimap.edu.my/xmlui/handle/123456789/1932
_version_	1643787490770812928
score	13.211869

Ultra low power 8-bit microcontroller using Super Cut-Off CMOS (SCCMOS)

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