The CMS89F613 is a 8-bit microcontroller produced by Cmsemicon SOP16 RoHS. It has an 8051 family core, a 8-bit XRAM direct data memory, 2110 bytes internal ROM, and a 16-bit auxiliary RAM. It features 10-bit A/D converter, 8 request/acknowledgement (R/A) ports, and 31 signal lines. It also comes with various peripherals, such as three timers/counters, UART, DMA, and two-channel programmable pulse counters. It is RoHS compliant and comes in a standard SOP16 package.