Altera Corporation
4–13
January 2006
Stratix Device Handbook, Volume 1
DC & Switching Characteristics
VIL(AC)
Low-level AC input voltage
VREF – 0.4
V
VOH
High-level output voltage
VTT + 0.6
V
VOL
Low-level output voltage
VTT – 0.6
V
Table 4–23. SSTL-3 Class II Specifications
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
Unit
VCCIO
Output supply voltage
3.0
3.3
3.6
V
VTT
Termination voltage
VREF – 0.05
VREF
VREF + 0.05
V
VREF
Reference voltage
1.3
1.5
1.7
V
VIH(DC)
High-level DC input voltage
VREF + 0.2
VCCIO + 0.3
V
VIL(DC)
Low-level DC input voltage
–0.3
VREF – 0.2
V
VIH(AC)
High-level AC input voltage
VREF + 0.4
V
VIL(AC)
Low-level AC input voltage
VREF – 0.4
V
VOH
High-level output voltage
VTT + 0.8
V
VOL
Low-level output voltage
VTT – 0.8
V
Table 4–24. 3.3-V AGP 2
× Specifications
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
Unit
VCCIO
Output supply voltage
3.15
3.3
3.45
V
VREF
Reference voltage
0.39
× V
CCIO
0.41
× V
CCIO
V
VIH
High-level input voltage
(4)0.5
× V
CCIO
VCCIO + 0.5
V
VIL
Low-level input voltage
(4)0.3
× VCCIO
V
VOH
High-level output voltage
IOUT = –0.5 mA
0.9
× V
CCIO
3.6
V
VOL
Low-level output voltage
IOUT = 1.5 mA
0.1
× V
CCIO
V
Table 4–25. 3.3-V AGP 1
× Specifications (Part 1 of 2)
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
Unit
VCCIO
Output supply voltage
3.15
3.3
3.45
V
VIH
High-level input voltage
(4)0.5
× V
CCIO
VCCIO + 0.5
V
VIL
Low-level input voltage
(4)0.3
× V
CCIO
V
Table 4–22. SSTL-3 Class I Specifications (Part 2 of 2)
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
Unit