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| HC1S25 Datasheet, PDF (33/110 Pages) Altera Corporation – HardCopy Stratix Device Family | |||
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Operating Conditions
Table 4â18. SSTL-18 Class II Specifications
Symbol
Parameter
Conditions
VC CIO
VR EF
VTT
VI H(DC )
VI L(D C)
VI H(AC )
VI L(A C)
VOH
VOL
Output supply voltage
Reference voltage
Termination voltage
High-level DC input
voltage
Low-level DC input
voltage
High-level AC input
voltage
Low-level AC input
voltage
High-level output voltage IOH = â13.4 mA (1)
Low-level output voltage IOL = 13.4 mA (1)
Minimum
1.65
0.8
VREF â 0.04
VREF + 0.125
Typical
1.8
0.9
VREF
Maximum Unit
1.95
V
1.0
V
VREF + 0.04 V
V
VREF â 0.125 V
VREF + 0.275
V
VREF â 0.275 V
VTT + 0.630
V
VTT â 0.630 V
Table 4â19. SSTL-2 Class I Specifications
Symbol
Parameter
Conditions
VC CIO
VTT
VR EF
VI H(DC )
VI L(D C)
VI H(AC )
VI L(A C)
VOH
VOL
Output supply voltage
Termination voltage
Reference voltage
High-level DC input
voltage
Low-level DC input
voltage
High-level AC input
voltage
Low-level AC input
voltage
High-level output voltage IOH = â8.1 mA (1)
Low-level output voltage IOL = 8.1 mA (1)
Minimum
2.375
VREF â 0.04
1.15
VREF + 0.18
â0.3
VREF + 0.35
VTT + 0.57
Typical
2.5
VREF
1.25
Maximum Unit
2.625
V
VREF + 0.04 V
1.35
V
3.0
V
VREF â 0.18 V
V
VREF â 0.35 V
V
VTT â 0.57 V
Table 4â20. SSTL-2 Class II Specifications (Part 1 of 2)
Symbol
Parameter
VC CIO
VTT
Output supply voltage
Termination voltage
Conditions
Minimum
2.375
VREF â 0.04
Typical
2.5
VREF
Maximum Unit
2.625
V
VREF + 0.04 V
Altera Corporation
4â9
September 2008
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