Hello, Processor datasheet SM320F28335 - It appears the DSP should be powered by 1.8 V instead of 1.9 V when used for high temperature and the operating frequency should also be 100 Mhz. See Figure 3.1and 6.4 of the datasheet. Although the Recommended Operation Conditions on page 112 does not show this
Question 2 : What is the the voltage tolerance when operating at 1.8 V instead of 1.9 V.