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Pins and Source Current
How Many Pins Can Source Current from the PSoC?
You can source a maximum of 10mA of current from a GPIO in PSoC1 (except CY8C20xx6A). You can have maximum 8 loads on GPIOs, 4 on even port pins (for example, P0, P1) and 4 on odd port pins (for example, P0, P1).