Patent ID: 6518794
Filing Date: 2003-02-11
Classification: G11C,H03K

Abstract:
Apparatus for establishing a minimum time delay in data communication between rising and falling transitions measured from an intersection that is the crosspoint of a rising strobe voltage signal and a declining data voltage signal, comprisinga switching element operable to control unbalanced transitions in strobe and data signal lines wherein, a data voltage signal is receivable at a first input to a first series path through a receiver element and latch element, a strobe voltage signal is receivable at a second input to a second series path through an inverting receiver element and latch element, said receiver element and said inverting receiver element both being referenced to Vref in said apparatus, the output of said receiver element being cross connected to the control input of said latch element in said second series path, the output of said inverting receiver element being cross connected to the control input of said latch element in said first series path, means applying a test pattern of alternating 1 and 0 so that for every transition at said first input, an opposite transition occurs at said second input, and, means for iterating said test patterns for minimum delay value as sensed between the outputs at said latch elements.