AV-51002
2017.02.10
1-17
I/O Standard Specifications
I/O Standard Specifications
Tables in this section list the input voltage (VIH and VIL), output voltage (VOH and VOL), and current drive characteristics (IOH and IOL) for various
I/O standards supported by Arria V devices.
You must perform timing closure analysis to determine the maximum achievable frequency for general purpose I/O standards.
Single-Ended I/O Standards
Table 1-14: Single-Ended I/O Standards for Arria V Devices
VCCIO (V)
Typ
VIL (V)
VIH (V)
VOL (V)
Max
VOH (V)
Min
(13)
IOL
I/O Standard
IOH(13) (mA)
(mA)
Min
Max
Min
Max
Min
Max
3.3-V
3.135
3.3
3.465
–0.3
0.8
1.7
3.6
0.45
2.4
4
–4
LVTTL
3.3-V
3.135
2.85
2.85
3.3
3
3.465
3.15
3.15
–0.3
–0.3
–0.3
0.8
0.8
0.8
1.7
1.7
1.7
3.6
3.6
3.6
0.2
0.4
0.2
VCCIO – 0.2
2.4
2
2
–2
–2
LVCMOS
3.0-V
LVTTL
3.0-V
3
VCCIO – 0.2
0.1
–0.1
LVCMOS
3.0-V PCI
2.85
2.85
3
3
3.15
3.15
—
—
0.3 × VCCIO 0.5 × VCCIO VCCIO + 0.3 0.1 × VCCIO 0.9 × VCCIO
0.35 × VCCIO 0.5 × VCCIO VCCIO + 0.3 0.1 × VCCIO 0.9 × VCCIO
1.5
1.5
–0.5
–0.5
3.0-V
PCI-X
2.5 V
1.8 V
1.5 V
1.2 V
2.375
1.71
2.5
1.8
1.5
1.2
2.625
1.89
–0.3
–0.3
–0.3
–0.3
0.7
1.7
3.6
0.4
2
1
2
2
2
–1
–2
–2
–2
0.35 × VCCIO 0.65 × VCCIO VCCIO + 0.3
0.45
VCCIO – 0.45
1.425
1.14
1.575
1.26
0.35 × VCCIO 0.65 × VCCIO VCCIO + 0.3 0.25 × VCCIO 0.75 × VCCIO
0.35 × VCCIO 0.65 × VCCIO VCCIO + 0.3 0.25 × VCCIO 0.75 × VCCIO
(13)
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.
Arria V GX, GT, SX, and ST Device Datasheet
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