PSoC® 4 is a scalable and reconfigurable platform architecture for a family of programmable embedded system controllers with an ARM® Cortex™-M0 CPU. It combines programmable and reconfigurable analogue and digital blocks with flexible automatic routing. The PSoC 4000 product family is the smallest member of the PSoC 4 platform architecture. It is a combination of a microcontroller with standard communication and timing peripherals, a capacitive touch-sensing system (CapSense) with general-purpose analogue. PSoC 4000 products will be fully upward compatible with members of the PSoC 4 platform for new applications and design needs.