Cyclone V Device Datasheet

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

Single-Ended SSTL, HSTL, and HSUL I/O Standards Signal Specifications

Table 17.  Single-Ended SSTL, HSTL, and HSUL I/O Standards Signal Specifications for Cyclone® V Devices
I/O Standard VIL(DC) (V) VIH(DC) (V) VIL(AC) (V) VIH(AC) (V) VOL (V) VOH (V) IOL 19 (mA) IOH 19 (mA)
Min Max Min Max Max Min Max Min
SSTL-2 Class I –0.3 VREF – 0.15 VREF + 0.15 VCCIO + 0.3 VREF – 0.31 VREF + 0.31 VTT – 0.608 VTT + 0.608 8.1 –8.1
SSTL-2 Class II –0.3 VREF – 0.15 VREF + 0.15 VCCIO + 0.3 VREF – 0.31 VREF + 0.31 VTT – 0.81 VTT + 0.81 16.2 –16.2
SSTL-18 Class I –0.3 VREF – 0.125 VREF + 0.125 VCCIO + 0.3 VREF – 0.25 VREF + 0.25 VTT – 0.603 VTT + 0.603 6.7 –6.7
SSTL-18 Class II –0.3 VREF – 0.125 VREF + 0.125 VCCIO + 0.3 VREF – 0.25 VREF + 0.25 0.28 VCCIO – 0.28 13.4 –13.4
SSTL-15 Class I VREF – 0.1 VREF + 0.1 VREF – 0.175 VREF + 0.175 0.2 × VCCIO 0.8 × VCCIO 8 –8
SSTL-15 Class II VREF – 0.1 VREF + 0.1 VREF – 0.175 VREF + 0.175 0.2 × VCCIO 0.8 × VCCIO 16 –16
SSTL-135 VREF – 0.09 VREF + 0.09 VREF – 0.16 VREF + 0.16 0.2 × VCCIO 0.8 × VCCIO
SSTL-125 VREF – 0.85 VREF + 0.85 VREF – 0.15 VREF + 0.15 0.2 × VCCIO 0.8 × VCCIO
HSTL-18 Class I VREF – 0.1 VREF + 0.1 VREF – 0.2 VREF + 0.2 0.4 VCCIO – 0.4 8 –8
HSTL-18 Class II VREF – 0.1 VREF + 0.1 VREF – 0.2 VREF + 0.2 0.4 VCCIO – 0.4 16 –16
HSTL-15 Class I VREF – 0.1 VREF + 0.1 VREF – 0.2 VREF + 0.2 0.4 VCCIO – 0.4 8 –8
HSTL-15 Class II VREF – 0.1 VREF + 0.1 VREF – 0.2 VREF + 0.2 0.4 VCCIO – 0.4 16 –16
HSTL-12 Class I –0.15 VREF – 0.08 VREF + 0.08 VCCIO + 0.15 VREF – 0.15 VREF + 0.15 0.25 × VCCIO 0.75 × VCCIO 8 –8
HSTL-12 Class II –0.15 VREF – 0.08 VREF + 0.08 VCCIO+ 0.15 VREF – 0.15 VREF + 0.15 0.25 × VCCIO 0.75 × VCCIO 16 –16
HSUL-12 VREF – 0.13 VREF + 0.13 VREF – 0.22 VREF + 0.22 0.1 × VCCIO 0.9 × VCCIO
19 To meet the IOL and IOH specifications, you must set the current strength settings accordingly. For example, to meet the SSTL15CI specification (8 mA), you should set the current strength settings to 8 mA. Setting at lower current strength may not meet the IOL and IOH specifications in the datasheet.

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