Operating Conditions
Table 4–15. PCI-X 1.0 Specifications
Symbol
Parameter
Conditions
Minimum Typical Maximum
Unit
V
VCCIO
Output supply voltage
High-level input voltage
3.0
3.6
VIH
0.5 ×
VCCIO
VCCIO
0.5
+
V
VIL
Low-level input voltage
Input pull-up voltage
–0.5
0.35 ×
VCCIO
V
V
V
V
VIPU
VOH
VOL
0.7 ×
VCCIO
High-level output voltage
Low-level output voltage
IOUT = –500 μA
IOUT = 1,500 μA
0.9 ×
VCCIO
0.1 ×
VCCIO
Table 4–16. GTL+ I/O Specifications
Symbol
Parameter
Conditions
Minimum Typical Maximum
Unit
V
VTT
Termination voltage
Reference voltage
1.35
0.88
1.5
1.0
1.65
1.12
VREF
VIH
V
High-level input voltage
Low-level input voltage
Low-level output voltage
VREF + 0.1
V
VIL
VREF – 0.1
0.65
V
VOL
IOL = 34 mA (3)
V
Table 4–17. GTL I/O Specifications
Symbol
Parameter
Termination voltage
Reference voltage
High-level input voltage
Conditions
Minimum Typical Maximum
Unit
V
VTT
1.14
0.74
1.2
0.8
1.26
0.86
VREF
VIH
V
VREF
+
V
0.05
VIL
Low-level input voltage
Low-level output voltage
VREF
0.05
–
V
V
VOL
IOL = 40 mA (3)
0.4
4–10
Altera Corporation
July 2005
Stratix Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
