The CH352L with Interface - Specialized LQFP-100_14x14x05P RoHS is a chip manufactured by Qin Heng. It is an integrated serial/parallel port single-chip for USB2.0/UART interface and PCI bridges. It provides two UART channels, one ISA bus interface channel, one USB2.0 supervisor control channel, one USB2.0 OTG channel, one I2C interface, 16 general purpose I/O ports, and one 2-ch 10-bit A/D interface. The chip has a built-in oscillator, providing various supplementary functions and support for different system architectures and application scenarios. It is RoHS compliant, and its package is LQFP-100_14x14x05P.