XC9536XL-5VQG44C is a complex programmable logic device (CPLD) produced by Xilinx. The chip has 44 pins, of which 34 are I/O pins, with a working frequency of up to 178.6 MHz, suitable for high-performance, low-voltage application scenarios. It adopts TQFP-44 packaging, with a working power supply voltage range of 3V to 3.6V and a working temperature range of 0 ℃ to 70 ℃.