The PCA9502 is an 8-bit I/O expander with I2C-bus/SPI host interface. The device comes

in a very small HVQFN24 package, which makes it ideally suitable for hand-held, battery

operated applicaTIons.

PCA9502—带I2C和SPI接口的8位I/O口扩展芯片

PCA9502—带I2C和SPI接口的8位I/O口扩展芯片