TMS320C6455/C6454 Power Consumption Summary (Rev. B)

This application report discusses the power consumption of the Texas Instruments TMS320C6455 and TMS320C6454 digital signal processor (DSPs). The power consumption on the C645x devices is highly application-dependent, therefore, a power spreadsheet that predicts power consumption is provided along with this application note. The power spreadsheet can be used for the purpose of modeling power consumption for user applications such as power supply design, thermal design etc. To achieve good results from the spreadsheet, realistic usage parameters must be entered. The low-core voltage and other power design optimizations allow these devices to operate with industry-leading performance, while maintaining a low power-to-performance ratio.

The data presented in this document and in the accompanying spreadsheet was measured from devices at the maximum end of the power consumption for production devices; therefore, no production devices will have average power consumption that exceeds the spreadsheet values. Therefore, the spreadsheet values can be used for board thermal analysis and power supply design as a maximum long-term average.