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TM4C processor with <10mA peak run current @ 10-20MHz

Rifat Sheikh
Prodigy 500 points
Other Parts Discussed in Thread: TM4C123GH6PM, TM4C123FE6PM

Hi,

Background:
I am looking for a TM4C processor with the following features:

  1. M3/M4 Core
  2. 2 CAN transceivers
  3. <10mA peak run current @10-20MHz
  4. Flash 128K to 256K
  5. RAM 32K-64K

Things that I've done:

  • I have been looking into TM4C123XX family datasheets and I came across TM4C123GH6PM and TM4C123FE6PM. They meet all the specs except for <10mA peak run current consumption

Question:

1. Is there a TM4C processor that meets all the specifications?

Thank you in advance.

Rifat Sheikh

  • 0
    Guru 47900 points

    Rifat Sheikh said:
    They meet all the specs except for <10mA peak run current consumption

    Your post reminds us of famed G'ovt testimony, "Depends on what "IS" is!"

    Should "peak run current consumption" be defined as that current drawn - when MCU's system clock is set to 20MHz - and executing the most MCU intensive code - and "such a specification exists and reports beyond your desire" - you may be stuck.

    Often the, "average current consumption" plays a greater - and more meaningful role - while enabling multiple, "power saving strategies." (i.e. sleep, deep sleep etc.)    You may wish to consult again w/client - and probe as to why a "peak current" (however brief) trumps the far more normal/customary "average current!"

    Is it not the "average current" - over time - which usually is the, "Battery Killer?"    So long as any "peak currents" remain w/in system spec - their importance may be over-rated...

    As you are w/in vendor's "fold" - might your consideration of older MSP family (noted for low power consumption) prove a superior, "Port of vendor's MCU call?"