Duex5 GPIO pins

  • Does anyone know the source and sink current capability of the GPIO pins when switched as an output.

    I have looked for data sheet of an ESP-07 but seems only Vmin and Vmax are defined (at least on what I downloaded)

    I believe from previous posts there is a 100K pullup on the board.

    I would like to know if it is a driven high output or simply a sink low.


  • administrators

    The chip that drives those I/O pins is a SX1509B. So that's the datasheet you need to look up.

  • Thanks for reply.

    So it appears to be best case 8mA source for logic 1 and 15mA sink for logic 0.

Log in to reply