MAX® 10 FPGA – AN 490: Voltage Level Shifters Design Example - Devices on one circuit board can potentially use many different supply voltages, such as 5 V, 3.3 V, 2.5 V, 1.8 V, and 1.5 V. Therefore, the buses connected to a system can have different voltage standards that can lead to voltage-level conflicts. MAX® 10 FPGAs are designed to interface directly with 1.5-V, 1.8-V, 2.5-V, and 3.3-V signals and can be used to eliminate these conflicts. MAX® 10 FPGAs can interface with other devices using different voltage levels because the core power supply voltage (VCCINT) is separate from the FPGA output voltage (VCCIO). A few applications for voltage level shifting are: - Interfacing microprocessors with peripheral devices, timers, and transceivers that are operating at different I/O standards and levels - Driving more than one set of GPIO pins having different I/O standards - 2016-05-18

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