DC & Switching Characteristics
Table 4–22. SSTL-3 Class I Specifications (Part 2 of 2)
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
Unit
V
VIL(AC)
Low-level AC input voltage
High-level output voltage
Low-level output voltage
VREF – 0.4
VOH
VOL
IOH = –8 mA (3)
IOL = 8 mA (3)
VTT + 0.6
V
VTT – 0.6
V
Table 4–23. SSTL-3 Class II Specifications
Symbol
Parameter
Conditions
Minimum
3.0
Typical
3.3
Maximum
3.6
Unit
V
VCCIO
Output supply voltage
Termination voltage
VTT
VREF – 0.05
1.3
VREF
1.5
VREF + 0.05
1.7
V
VREF
VIH(DC)
VIL(DC)
VIH(AC)
VIL(AC)
VOH
Reference voltage
V
High-level DC input voltage
Low-level DC input voltage
High-level AC input voltage
Low-level AC input voltage
High-level output voltage
Low-level output voltage
VREF + 0.2
–0.3
VCCIO + 0.3
VREF – 0.2
V
V
VREF + 0.4
V
VREF – 0.4
VTT – 0.8
V
IOH = –16 mA (3) VTT + 0.8
IOL = 16 mA (3)
V
VOL
V
Table 4–24. 3.3-V AGP 2× Specifications
Symbol
Parameter
Conditions
Minimum
3.15
Typical
Maximum
3.45
Unit
V
VCCIO
Output supply voltage
Reference voltage
3.3
VREF
VIH
0.39 × VCCIO
0.5 × VCCIO
0.41 × VCCIO
VCCIO + 0.5
0.3 × VCCIO
3.6
V
High-level input voltage (4)
Low-level input voltage (4)
High-level output voltage
Low-level output voltage
V
VIL
V
VOH
VOL
IOUT = –0.5 mA
IOUT = 1.5 mA
0.9 × VCCIO
V
0.1 × VCCIO
V
Table 4–25. 3.3-V AGP 1× Specifications (Part 1 of 2)
Symbol
Parameter
Conditions
Minimum
3.15
Typical
Maximum
3.45
Unit
V
VCCIO
Output supply voltage
High-level input voltage (4)
Low-level input voltage (4)
3.3
VIH
VIL
0.5 × VCCIO
VCCIO + 0.5
0.3 × VCCIO
V
V
Altera Corporation
January 2006
4–13
Stratix Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
