T8403 | ICS TRIPLEX | graphical output controller

Description

T8403 | ICS TRIPLEX | graphical output controller

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Among them, T8403  is the number of available non redundant storage units; NR is the number of redundant storage units; P is the probability of success, or yield rate, taken from the average number of failures; Q is the probability of failure (1-P); And C (NF, (NF-K)) is a binomial coefficient, which is a standard mathematical function. If the critical area analysis tool can use different memory redundancy specifications for post-processing calculations, it can provide numerical and graphical output results, making it easier to visually determine the optimal redundancy. The goal is to ensure that there are the required number of good units in the total number of units.

To see the effect of memory redundancy, T8403  consider a hypothetical instance. This memory is a 4Mb 32Kb x 128b SRAM. Our goal is to obtain at least 128 good units out of a total of 130 units. In this example, there are two units that need to be repaired and there are no defective units. Through analysis, it is determined that the yield rate of a unit considering a defect type is 0.999. So, the non repaired yield rate of the entire core is 0.999 to the 128th power, which is 0.8798. If all types of defects are analyzed, the expected yield rate is approximately 0.35.

Mailbox：sauldcsplc@gmail.com |T8403
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