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I/O expander chip AW9523BTQR evaluation board

Overview

This design is a solution evaluation board for the I/O expander chip AW9523BTQR ( C148077 ) from Lichuang Mall.

This design inputs 2.4V~5.5V and implements 16-channel GPIO expansion controlled by IIC with AW9523BTQR as the core, or can be configured as LED constant current driver respectively. Please refer to the Datasheet for specific chip characteristics.

Note: Before configuring any or multiple pins to GPIO mode, be sure to remove the LED jumper cap.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-07-07 00:15:34

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