Microprocessor pin predicting

We verified that contemporary microprocessors follow a form of Rent's rule as applicable for functionally partitioned circuits and, hence, present far fewer pins than that predicted by the SIA. We have also suggested a correction scheme for application of Rent's rule to recent VLSI circuits that would yield the correct (slower) rate of increase in pin requirements of these circuits. Finally, the reasons for using such a large number of power and ground pins in current VLSI circuits have been elaborated in detail.