General-Purpose I/O User Guide: Agilex™ 5 FPGAs and SoCs

ID 813934
Date 4/05/2024
Public
Document Table of Contents

3.2.1. Supported I/O Standards for HVIO Banks

The VCCIO_HVIO, VCCPT_HVIO, and VCC power supplies power the HVIO buffers. Each HVIO bank has its own VCCIO_HVIO power supply, but shares VCCPT_HVIO and VCC power supplies between the HVIO banks and with other blocks.

The HVIO bank supports 1.8 V, 2.5 V, and 3.3 V VCCIO_HVIO. In the bank, you can implement I/O standards that support the bank's VCCIO_HVIO.

Table 27.   HVIO Bank Supported I/O StandardsThis table lists the input and output voltages of a HVIO bank. To use the LVTTL I/O standards on the hardware, assign the equivalent LVCMOS I/O standards in the Quartus® Prime software.
I/O Standard VCCIO_HVIO (V) VCCPT_HVIO (V) JEDEC Standard
Input Output
1.8 V LVCMOS/LVTTL 1.8 1.8 1.8 JESD8-31
2.5 V LVCMOS/LVTTL 2.5 2.5 1.8 JESD8-12A.01
3.3 V LVCMOS/LVTTL 3.3 3.3 1.8 JESD8-B