Accession Number:

AD0744030

Title:

Autonomous, Synchronous Counters Constructed Only of J-K-Flip-Flops

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE PROJECT MAC

Personal Author(s):

• Manning, Frank

Report Date:

1972-05-01

Pagination or Media Count:

68.0

Abstract:

The report describes research into some properties of autonomous, synchronous counters constructed with only the simplest form of J-K Flip-Flop. The research revolved around a system with a special-purpose digital machine and a general-purpose computer. The special-purpose machine searched through all the possible counters constructed of five or fewer J-K Flip-Flops for all counters with a period equal to that specified by the input to the systems. The descriptions of the counters found were transmitted by the special-purpose machine to the computer. Software analyzed this output data for various attributes, such as counters that cycle the same way independent of their starting-state. Useful information for designers of digital machines, several proofs, and some insight into counters constructed only of J-K Flip-Flops resulted from this analysis.

Descriptors:

• *LOGIC CIRCUITS
• *SWITCHING CIRCUITS
• DIGITAL COMPUTERS
• RELAXATION OSCILLATORS
• SYNCHRONIZATION(ELECTRONICS)
• THESES

Subject Categories:

• Electrical and Electronic Equipment
• Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE