DC & Switching Characteristics
Table 6–24. SSTL-2 Class II Specifications (Part 2 of 2)
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
Units
VOH
High-level output voltage
IOH = –16.4 mA VTT + 0.76
V
(1)
VOL
Low-level output voltage
IOL = 16.4 mA (1)
VTT – 0.76
V
Table 6–25. SSTL-3 Class I Specifications
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
Units
V
VCCIO
Output supply voltage
Termination voltage
3.0
3.3
3.6
VTT
VREF
VIH
VREF – 0.05 VREF
VREF + 0.05
1.7
V
Reference voltage
1.3
1.5
V
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
VREF + 0.2
–0.3
VCCIO + 0.3
VREF – 0.2
V
VIL
V
VOH
VOL
IOH = –8 mA (1) VTT + 0.6
IOL = 8 mA (1)
V
VTT – 0.6
V
Table 6–26. SSTL-3 Class II Specifications
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
3.6
Units
V
VCCIO
Output supply voltage
Termination voltage
3.0
3.3
VTT
VREF
VIH
VREF – 0.05 VREF
VREF + 0.05
1.7
V
Reference voltage
1.3
1.5
V
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
VREF + 0.2
–0.3
VCCIO + 0.3
VREF – 0.2
V
VIL
V
VOH
VOL
IOH = –16 mA (1) VTT + 0.8
IOL = 16 mA (1)
V
VTT – 0.8
V
Table 6–27. 3.3-V AGP 2× Specifications (Part 1 of 2)
Symbol
Parameter
Output supply voltage
Reference voltage
Conditions
Minimum
Typical
Maximum
Units
VCCIO
3.15
3.3
3.45
V
V
VREF
0.39 ×
0.41 ×
VCCIO
VCCIO
VIH
VIL
High-level input voltage (2)
Low-level input voltage (2)
0.5 × VCCIO
VCCIO + 0.5
V
V
0.3 × VCCIO
Altera Corporation
August 2005
6–19
Stratix GX Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
