The CMS89F6395B is a highly integrated, low-power, 8-bit microcontroller with built-in Bosch BBS05 firmware. It is manufactured by Cmsemicon in a LQFP44 RoHS package. It contains an 8051-architecture network processor, 64KB ROM, 6KB RAM, 8-channel 10-bit A/D converter, 8-channel PWM generator, a watchdog timer, real-time clock, two UARTs (SPI compatible), a USB 2.0 host controller, and two I2C interfaces. The device is also equipped with a PCA timer and an interrupt controller, allowing system designers to configure a wide range of applications with a minimum of external components. The CMS89F6395B is designed for use in a wide range of applications including home appliances, consumer electronics, communications, medical, security and automotive systems.