Not only is the power consumption of the Cyclone® IV family setting a standard, but the power supply network requirements of the Cyclone® IV are also innovative. Through the use of internal regulators and careful design, keeping the customer’s total cost in mind, the Cyclone® IV E and GX devices both only require two power voltage rails and two regulators to supply the required VCCINT and VCCAUX rails. Keep in mind that any I/O standard required that does not use 1.2V or 2.5V (or in the case of Cyclone® IV E, 1.0V for VCCINT), additional power supplies are required. Additionally, the Cyclone® IV devices do not require any specific power sequencing to operate, enabling them to be fully hot-swap capable.