Logic Decomposition of Speed-Independent Circuits
نویسندگان
چکیده
Logic decomposition is a well-known problem in logic synthesis, but it poses new challenges when targeted to speed-independent circuits. The decomposition of a gate into smaller gates must preserve not only the functional correctness of a circuit but also speed independence, i.e., hazard freedom under unbounded gate delays. This paper presents a new method for logic decomposition of speed-independent circuits that solves the problem in two major steps: 1) logic decomposition of complex gates and 2) insertion of new signals that preserve hazard freedom. The method is shown to be more general than previous approaches and its effectiveness is evaluated by experiments on a set of benchmarks.
منابع مشابه
Technology Mapping for Speed-Independent Circuits: Decomposition and Resynthesis
This paper presents theory and practical implementation of a method for multi-level logic synthesis of speedindependent circuits. An initial circuit implementation is assumed to satisfy the monotonous cover conditions but is technology independent. The proposed method performs both combinational (inserting new gates) and sequential (inserting new memory elements) decomposition of complex gates ...
متن کاملSymmetrical, Low-Power, and High-Speed 1-Bit Full Adder Cells Using 32nm Carbon Nanotube Field-effect Transistors Technology (TECHNICAL NOTE)
Carbon nanotube field-effect transistors (CNFETs) are a promising candidate to replace conventional metal oxide field-effect transistors (MOSFETs) in the time to come. They have considerable characteristics such as low power consumption and high switching speed. Full adder cell is the main part of the most digital systems as it is building block of subtracter, multiplier, compressor, and other ...
متن کاملOptimal Unate Decomposition Method for Synthesis of Mixed Cmos Vlsi Circuits
Static CMOS logic style is often the choice of designers for synthesizing low power circuits. This style is robust in terms of noise integrity however, it offers less speed. Domino logic style, as an alternative is often found in critical paths of various large scale high performance circuits. Yet, due to high switching activity they are not suitable for synthesis of low power circuits. To achi...
متن کاملHigh-Speed Ternary Half adder based on GNRFET
Superior electronic properties of graphene make it a substitute candidate for beyond-CMOSnanoelectronics in electronic devices such as the field-effect transistors (FETs), tunnel barriers, andquantum dots. The armchair-edge graphene nanoribbons (AGNRs), which have semiconductor behavior,are used to design the digital circuits. This paper presents a new design of ternary half a...
متن کاملHigh Speed Full Swing Current Mode BiCMOS Logical Operators
In this paper the design of a new high-speed current mode BiCMOS logic circuits isproposed. By altering the threshold detector circuit of the conventional current mode logic circuitsand applying the multiple value logic (MVL) approach the number of transistors in basic logicoperators are significantly reduced and hence a reduction of chip area and power dissipation as wellas an increase in spee...
متن کامل