Embedded systems are dependent on low-power, miniaturized instrumentation. Comparator circuits are common elements in applications for digital threshold detection. A multi-level, memory-based logic approach is in development that offers potential benefits in power usage and size with respect to traditional binary logic systems. Basic 4-bit operations with CMOS gates and comparators are chosen to compare circuit implementations of binary structures and quaternary equivalents. Circuit layouts and functional operation are presented. In particular, power characteristics and transistor count are examined. The potential for improved embedded systems based on the multilevel, memory-based logic is discussed.

Meeting Name

SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring (2016: Mar. 21-24, Las Vegas, NV)


Electrical and Computer Engineering

Research Center/Lab(s)

Intelligent Systems Center

Keywords and Phrases

Bins; Comparator circuits; Comparators (optical); Embedded systems; Reconfigurable hardware; Binary structures; Circuit implementation; Functional operation; Multilevels; Potential benefits; Power characteristic; Threshold detection; Transistor count; Computer circuits; comparator; multi-level circuits

International Standard Book Number (ISBN)


International Standard Serial Number (ISSN)

0277-786X; 1996-756X

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2016 SPIE, All rights reserved.

Publication Date

01 Apr 2016