PSoC™ 1 reducing your 8-bit system cost
The CY8C21x34 PSoC™ device architecture, consists of four main areas: the Core, the System Resources, the Digital System, and the Analog System. Configurable global bus resources allow combining all the device resources into a complete custom system. Each CY8C21x34 PSoC device includes four digital blocks and four analog blocks. Depending on the PSoC package, up to 28 general purpose IO (GPIO) are also included. The GPIO provide access to the global digital and analog interconnects.