The CMS89F5523 with Cmsemicon SOP16 is a RoHS compliant electronic part manufactured by Cmsemicon. It is a highly integrated single-chip modem that supports packet data transmission speeds up to 100 Kbit / s. It is designed to integrate various functions, such as low-speed Internet access, mobile TCP / IP, IP datagram processing, and IS-41 cellular core processing. It integrates several key components that are required to support a modem in a single package, including a processor, memory, RF transceiver, analog front-end, and power supply. This processor-based part is designed for use in mobile terminals and can be used to connect a mobile device to a network.