AW9523B GPIO Expander

From Stm32World Wiki
Revision as of 11:27, 30 October 2020 by imported>Lth
Jump to navigation Jump to search

While checking the standard parts on JLCPCB, I came across a Chinese i2c GPIO extender known as AW9523B (datasheet).

AW9523B Pinout.png

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