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TM4C1230E6PM: Check about maximum GPIO drive current

Daniel Fang
Genius 11600 points
Part Number: TM4C1230E6PM

Hi

For 1230PD[0:3], What's the meaning of 8mA and 40mA here.

8mA for each IO, the total should not over than 40mA? Is it right?

  • 0
    TI__Guru**** 158945 points
    Hi Daniel,
    Yes, your understanding is correct. The 40mA is maximum limit for the right and top sides of the I/O ring. This is an accumulative current. Each I/O can drive a max of 8mA. But if you have 5 I/O configured for high drive at 8mA then the total will be 40mA. However, if you configure the I/O at 2mA drive then you can have many more I/Os driving at the same time.