轻松测试和演示的PCA9698的40位GPIO NXP PCA9698 daughter card OM6281 Easily test and demonstrate the PCA9698 40-bit GPIO This add-on to NXP’s I2C 2005-1 demo board makes it easy to test and design with the PCA9698, a Fast-mode Plus (Fm+) GPIO device, that provides 40-bit I/O expansion with outputs capable of sourcing 10 mA and sinking 25 mA with a total package load of 1 A. Key features The PCA9698 uses the industry-standard I2C/SMBus port to 4 Easy-to-use daughter card with comprehensive evaluation communicate with the host demonstration board. The card can software be connecte……