AW9523B GPIO Expander

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Revision as of 12:24, 30 October 2020 by imported>Lth
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While checking the standard parts on JLCPCB, I came across a Chinese i2c GPIO extender known as AW9523B (datasheet). This part is relatively unknown - at least outside China, but it does have a really interesting feature and that is the ability to drive leds by controlling the led current.

The AW9523B is only available in a QFN package and because these are really hard to hand solder, I decided to create a simple breakout board for this part:

AW9523B GPIO Expander Breakout Board.jpg