AN4017 - Understanding Temperature Specifications: An Introduction

AN4017 gives a basic understanding of the temperature specifications found in Cypress's product datasheets. There are many factors that affect the thermal operation of a device. This application note also gives you an understanding of the thermal parameters and temperature specifications of the device. 

This document describes the various thermal parameters namely Ambient Temperature (T_a), Case Temperature (T_c), Junction Temperature(T_j), Thermal Resistance, Power Dissipation etc.

Details on calculating Junction Temperature are provided in this application note.

Clicking on the link below provides a tool which enables calculation of the I/O Switching Current (I_ddq) for desired frequency, Total Power Consumption and Junction Temperature for Sync SRAMs

http://www.cypress.com/?docID=23984

Please refer to the respective product datasheets to get the V_dd voltage and I_dd current used in the formula.