The XL9535 Interface - I/O Expanders TSSOP24 RoHS manufactured by XINLUDA is an electronic component used to expand the number of input and output pins available for designs. The component contains a CMOS single-chip microcontroller with 24 I/O pins configured as 4 I/O ports in a 24-pin TSSOP package. It can be used for applications such as data acquisition, data buffers, pointing device controllers, as well as small computer peripherals. The chip offers low power consumption and an 8-bit CPU core for user programmable I/O operations. It also has on-chip EEPROM memory for program and data storage. The device is compliant to the RoHS standard for lead-free components.