PC6605 is a peripheral integrated circuit from Microtran that provides support for a number of different communications interfaces. It is a 6-channel UART with a wide range of versatile circuit functions to support multiple digital devices. PC6605 has a special built-in feature called Opto-Isolation which allows secure communication between the device and a network. Additionally, it provides output functions such as RS232, RS485, and the new low-speed sigma-delta-based MetroSpline standard. It also supports direct bit-wise control of the transmission lines, allowing customers to use multiple standards in an integrated circuit. PC6605 supports SPI, I2C and SIP Protocols for fast data transfer. It also offers a wide range of flexible clock options including USB, Crystal and Oscillator.