NASA Office of Logic Design

A scientific study of the problems of digital engineering for space flight systems,
with a view to their practical solution.

Old Logic Technologies

   ¹RTL - Resistor Transistor Logic

   ²DCTL - Direct coupled transistor logic

   ¹DTL - Diode Transistor Logic

   ³OAO Quad-redundant AND Gate

   ³OAO Quad-redundant OR Gate

   ³OAO Quad-redundant Inverter

   ⁴ ECL - Emitter Coupled Logic

¹ Digital Logic and Computer Design
M. Morris Mano, California State University, Los Angeles
©1979 by Prentice-Hall, Inc.
ISBN 0-13-214510-3
page 563

² Introduction to Switching Theory and Logical Design, Third Edition
F. Hill and G. Peterson, University of Arizona
©1968, 1974, 1981 by John Wiley & Sons, Inc.
ISBN 0-471-04273-0
page 80

³ "Primary Processor and Data Storage Equipment for the Orbiting Astronomical Observatory"
Thomas B. Lewis, IBM Corporation, Space Guidance Center, Owego, NY.
IEEE Transactions on Electronic Computers
December 1963, pp. 677-687

⁴ Analysis and Design of Digital Circuits and Computer Systems
Paul M. Chirlian
Stevens Institute of Technology
Matrix Publishers, Inc., Champaign, Illinois
©1976

Home - NASA Office of Logic Design
Last Revised: March 24, 2003
Digital Engineering Institute
Web Grunt: Richard Katz