Data output impedance control

Details Data output impedance control Data output impedance control

1995-05-18

1996-07-16

Karlsen, Ernest F.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

371 225, G01R 3128

Patent

active

055370535

ABSTRACT:
The present invention provides an apparatus and method for monitoring the functioning of a special operational mode on an integrated circuit module without the need for a special or dedicated pin. By monitoring the data output pins of the module operation in a special operational mode and premature interruption thereof, is detected. Delayed transition from a state of low impedance to a state of high impedance during the data output cycle is indicative of the special operational mode. The modules which usually have tri-state devices on their output lines are provided with delay circuitry to delay the transition of the tri-state device, during the data output cycle, from a state of low impedance to a state of high impedance while the device remains in a special operating mode.

REFERENCES:
patent: 3865986 (1975-02-01), Darwood
patent: 4262337 (1981-04-01), Jones

Affiliated with

Also associated with

Rating

Data output impedance control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data output impedance control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data output impedance control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1787171