Effect of SSN on signal and power integrity on 32-bit microcontroller : Modeling and correlation

This paper presents a methodology to create a Simultaneous Switching Noise (SSN) predictive SPICE model for a 32-bit microcontroller. Here, the purpose is to predict the noise interference generated by switching IOs and establish new design/layout rules for the next product generation in order to reduce these interferences. This model achieves an accurate correlation between measurements done on a 32-bit MCU and Eldo simulations. Then, features are defined in order to build this accurate model. Having this, a deeper research work can be done only by simulation.