This document discusses the power consumption of the Texas Instruments TMS320DM640, TMS320DM641, TMS320DM642, and TMS320DM643 digital signal processors (DSPs). Power consumption on these devices is highly application-
dependent, so a spreadsheet is provided to model power consumption for a user's application. To get good results from the spreadsheet, realistic usage parameters
must be entered. The low-core voltage and other power design optimizations allow these DSPs to operate with industry-leading performance, while maintaining a low
power-to-performance ratio.< P >
The data presented in this document is actual measured power consumption for the DM642 silicon revision 1.0.
< P >This application report contains a spreadsheet that can be downloaded from this link:
http://www-s.ti.com/sc/psheets/spra962f/spra962f.zip. The spreadsheet should be used to correct power numbers given in the following table for the DM640, DM641, and DM643. For example, the DM640 and DM641 only have a 32-bit EMIF decreasing the overall power consumption.