Cyclone V Device Datasheet
CV-51002 | 2019.01.25
Single-Ended I/O Standards
Table 15.
Single-Ended I/O Standards for Cyclone V Devices
(18)
(18)
I/O Standard
VCCIO (V)
VIL (V)
VIH (V)
VOL (V)
Max
VOH (V)
Min
IOL
IOH
(mA)
(mA)
Min
3.135
3.135
2.85
Typ
3.3
3.3
3
Max
3.465
3.465
3.15
Min
–0.3
–0.3
–0.3
–0.3
—
Max
0.8
0.8
0.8
0.8
Min
1.7
1.7
1.7
1.7
Max
3.6
3.3-V LVTTL
3.3-V LVCMOS
3.0-V LVTTL
3.0-V LVCMOS
3.0-V PCI*
3.0-V PCI-X
2.5 V
0.45
2.4
4
2
–4
–2
3.6
0.2
VCCIO – 0.2
2.4
3.6
0.4
2
–2
2.85
3
3.15
3.6
0.2
VCCIO – 0.2
0.9 × VCCIO
0.9 × VCCIO
2
0.1
1.5
1.5
1
–0.1
–0.5
–0.5
–1
2.85
3
3.15
0.3 × VCCIO
0.35 × VCCIO
0.7
0.5 × VCCIO
0.5 × VCCIO
1.7
VCCIO + 0.3
VCCIO + 0.3
3.6
0.1 × VCCIO
0.1 × VCCIO
0.4
2.85
3
3.15
—
2.375
1.71
2.5
1.8
1.5
1.2
2.625
1.89
–0.3
–0.3
–0.3
–0.3
1.8 V
0.35 × VCCIO
0.35 × VCCIO
0.35 × VCCIO
0.65 × VCCIO
0.65 × VCCIO
0.65 × VCCIO
VCCIO + 0.3
VCCIO + 0.3
VCCIO + 0.3
0.45
VCCIO – 0.45
0.75 × VCCIO
0.75 × VCCIO
2
–2
1.5 V
1.425
1.14
1.575
1.26
0.25 × VCCIO
0.25 × VCCIO
2
–2
1.2 V
2
–2
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)
Typ
VREF (V)
Typ
VTT (V)
Typ
Min
Max
Min
Max
Min
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
continued...
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To meet the IOL and IOH specifications, you must set the current strength settings accordingly. For example, to meet the 3.3-V LVTTL
specification (4 mA), you should set the current strength settings to 4 mA. Setting at lower current strength may not meet the IOL and
IOH specifications in the datasheet.
Cyclone V Device Datasheet
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