Cyclone V Device Datasheet

ID 683801
Date 11/27/2019
Public
Document Table of Contents

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

Table 16.  Single-Ended SSTL, HSTL, and HSUL I/O Reference Voltage Specifications for Cyclone® V Devices
I/O Standard VCCIO (V) VREF (V) VTT (V)
Min Typ Max Min Typ Max Min Typ Max
SSTL-2 Class I, II 2.375 2.5 2.625 0.49 × VCCIO 0.5 × VCCIO 0.51 × VCCIO VREF – 0.04 VREF VREF + 0.04
SSTL-18 Class I, II 1.71 1.8 1.89 0.833 0.9 0.969 VREF – 0.04 VREF VREF + 0.04
SSTL-15 Class I, II 1.425 1.5 1.575 0.49 × VCCIO 0.5 × VCCIO 0.51 × VCCIO 0.49 × VCCIO 0.5 × VCCIO 0.51 × VCCIO
SSTL-135 Class I, II 1.283 1.35 1.418 0.49 × VCCIO 0.5 × VCCIO 0.51 × VCCIO 0.49 × VCCIO 0.5 × VCCIO 0.51 × VCCIO
SSTL-125 Class I, II 1.19 1.25 1.26 0.49 × VCCIO 0.5 × VCCIO 0.51 × VCCIO 0.49 × VCCIO 0.5 × VCCIO 0.51 × VCCIO
HSTL-18 Class I, II 1.71 1.8 1.89 0.85 0.9 0.95 VCCIO/2
HSTL-15 Class I, II 1.425 1.5 1.575 0.68 0.75 0.9 VCCIO/2
HSTL-12 Class I, II 1.14 1.2 1.26 0.47 × VCCIO 0.5 × VCCIO 0.53 × VCCIO VCCIO/2
HSUL-12 1.14 1.2 1.3 0.49 × VCCIO 0.5 × VCCIO 0.51 × VCCIO

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