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Is there a spec sheet anywhere which lists the electrical specifications for the varios GPIO pins on the RPi revision B? For example, if they are open collector etc, output voltage, max input voltage, max sink/source current, and so on?

I assume it's different between the different types, e.g. PWM, I2C etc, and obviously if they're programmed as inputs or outputs.

Thanks

Jayy
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2 Answers2

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There's quite a bit of information about the GPIOs on the lowlevel peripherals page (and linked pages) on the Embedded Linux wiki.

Habi
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I believe there are no extra ICs for the GPIO ports, so have you taken a look at the Broadcom Spec?

theguy
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