Agilex™ 3 FPGAs and SoCs Device Data Sheet

ID 848370
Date 8/11/2025
Public
Document Table of Contents

HSIO Single-Ended SSTL, HSTL, HSUL, and POD I/O Reference Voltage Specifications

Table 32.  HSIO Single-Ended SSTL, HSTL, HSUL, POD, and LVSTL I/O Reference Voltage Specifications For specification status, see the Data Sheet Status table
I/O Standard VCCIO_PIO (V) Internal VREF (V) VTT (V)
Min Typ Max Min Typ Max Min Typ Max
SSTL-12 1.14 1.2 1.26 0.49 × VCCIO_PIO 0.5 × VCCIO_PIO 0.51 × VCCIO_PIO 0.45 × VCCIO_PIO 0.5 × VCCIO_PIO 0.55 × VCCIO_PIO
HSTL-12 1.14 1.2 1.26 0.47 × VCCIO_PIO 0.5 × VCCIO_PIO 0.53 × VCCIO_PIO 0.45 × VCCIO_PIO 0.5 × VCCIO_PIO 0.55 × VCCIO_PIO
HSUL-1238 1.14 1.2 1.26 0.49 × VCCIO_PIO 0.5 × VCCIO_PIO 0.51 × VCCIO_PIO 0.45 × VCCIO_PIO 0.5 × VCCIO_PIO 0.55 × VCCIO_PIO
POD12 (GPIO)39 40 1.164 1.2 1.236 0.69 × VCCIO_PIO 0.7 × VCCIO_PIO 0.71 × VCCIO_PIO VCCIO_PIO
POD12 (PHYLITE)39 40 1.164 1.2 1.236 0.74 × VCCIO_PIO 0.75 × VCCIO_PIO 0.76 × VCCIO_PIO VCCIO_PIO
POD11 (GPIO)39 40 1.067 1.1 1.133 0.69 × VCCIO_PIO 0.7 × VCCIO_PIO 0.71 × VCCIO_PIO VCCIO_PIO
POD11 (PHYLITE)39 40 1.067 1.1 1.133 0.74 × VCCIO_PIO 0.75 × VCCIO_PIO 0.76 × VCCIO_PIO VCCIO_PIO
LVSTL1139 1.067 1.1 1.133 0.24 × VCCIO_PIO 0.25 × VCCIO_PIO 0.26 × VCCIO_PIO GND
LVSTL10539 1.0185 1.05 1.0815 0.24 × VCCIO_PIO 0.25 × VCCIO_PIO 0.26 × VCCIO_PIO GND
38 Usage of on-board receiver termination is optional.
39 Each sub-bank can only support a single voltage tolerance. The VCCIO_PIO tolerance can be extended to ±5% if the entire HSIO sub-bank is operating in any of the following modes. Else, you must supply the VCCIO_PIO voltage rail with a ±3% voltage supply tolerance.
  • PHYLITE mode
  • GPIO mode
40 For I/O lane with mixture of GPIO and PHYLITE interfaces, the VREF specification for that I/O lane follows the PHYLITE VREF specifications.