Delay-insensitive asynchronous ALU for cryogenic temperature environments

Hollosi, Brent; Barlow, M.; Fu, Guang; Lee, C.; Di, Jia; Smith, Scott C.; Mantooth, H. Alan; Schupbach, Marcelo

doi:10.1109/mwscas.2008.4616801

Cited by 16 publications

(7 citation statements)

References 4 publications

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“…Some of the components designed are shown in Cryogenic testing was performed and verified the ALU in Figure 6 (b) was able to operate correctly within a temperature range of 2K to 297 K [9].…”

Section: Designed Sige Based Components and Technology Maturity Assesmentioning

confidence: 89%

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Mission optimization and tradeoffs of using SiGe based electronics for a cryogenic environment rover mission

Kegege

Barlow

Mantooth

et al. 2010

2010 IEEE Aerospace Conference

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Electronics onboard rovers and spacecrafts are kept at approximately 20 ˚C by using radioisotope heater units (RHU), mechanically pumped fluid loops (MPFL), and centralized warm boxes. 1 2 These thermal control mechanisms add weight and volume of payload, adding to limitations on the number of science instruments that can be accommodated in a space mission. The University of Arkansas together with partnering universities and industry have designed various radiation-hardened silicon germanium (SiGe) based electronics modules and systems that can be used to build spacecraft instruments, robotics components, life support electronics components, and other application-specific integrated circuits (ASICs) for space. These low temperature electronics that can withstand space radiation and thermal cycling would reduce cost, weight, and increase the number of instruments on the payload, hence more science data. In this paper, we evaluate mission optimization, reliability, benefits/cost, and tradeoffs of using SiGe based electronics and systems for cryogenic planetary surface exploration.Also, we analyze components that can be built using SiGe based electronics and show a quantitative impact to a manned planetary surface exploration mission.

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Section: Designed Sige Based Components and Technology Maturity Assesmentioning

confidence: 89%

“…For lunar surface exploration, electronics and systems must be able to withstand thermal cycling and 100 krad of radiation over 10 years. SiGe electronics have been tested to operate down to -230 ˚C (43 K) [9]. Also, SiGe devices have been tested to be TID tolerant to Mrads [14].…”

Section: Introductionmentioning

confidence: 99%

Mission optimization and tradeoffs of using SiGe based electronics for a cryogenic environment rover mission

Kegege

Barlow

Mantooth

et al. 2010

2010 IEEE Aerospace Conference

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“…The original non-pipelined NCL 8051 ALU [9] is shown in The NCL 8051 ALU has three inputs (AL, AOS, and LOS) to choose the instruction to be executed. "AL" stands for Arithmetic/Logic and selects Arithmetic or Logic instruction type; once the instruction type is selected "AOS" (Arithmetic Operation Select) or "LOS" (Logic Operation Select) signals are used to choose the exact operation to be executed.…”

Section: Original Ncl 8051 Alumentioning

confidence: 99%

“…In addition, compared to the ALU design in [10], the throughput of the 8051 ALU in [9] cannot be easily increased because the ALU in [10] has a separate datapath for each operation that could be independently pipelined, whereas the 8051 ALU design in [9] utilizes the same C/L blocks for a variety of operations to significantly reduce area for the non-pipelined design, which makes pipelining it much more difficult . In order to properly pipeline the 8051 ALU in [9], it would need to be completely redesigned from scratch with pipelining in mind during the design, which would increase area, but significantly improve the throughput of the pipelined deign.…”

Section: Throughputmentioning

confidence: 99%

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SCL design of a pipelined 8051 ALU

Parsan

Zhao

Smith

2014

2014 IEEE 57th International Midwest Symposium on Circuits and Systems (MWSCAS)

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The design of a pipelined SCL 8051 ALU is elaborated. Two versions of SCL gates are considered for gatelevel implementation: SCL gates with both nsleep and sleep signals and SCL gates without nsleep signal. In both versions all combinational blocks, registers, and completion components can be put to sleep mode. In addition, the problem associated with pipelining the SCL 8051 ALU is explained and a solution is provided. The non-pipelined and pipelined SCL 8051 ALUs, implemented with both versions of SCL gates, are then simulated in transistor-level and compared in terms of area, speed, leakage power, dynamic power, and energy per operation. The SCL 8051 ALUs implemented with SCL gates without nsleep signal are shown to outperform the ones using the other gate style except for leakage power. In addition, it is shown that pipelining may have adverse effect on throughput.

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Asynchronous Circuits and Their Applications in Hardware Security

Tawfik

Khalil

2021

Emerging Topics in Hardware Security

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Delay-insensitive asynchronous ALU for cryogenic temperature environments

Cited by 16 publications

References 4 publications

Mission optimization and tradeoffs of using SiGe based electronics for a cryogenic environment rover mission

Mission optimization and tradeoffs of using SiGe based electronics for a cryogenic environment rover mission

SCL design of a pipelined 8051 ALU

Asynchronous Circuits and Their Applications in Hardware Security

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