10–8 Altera Corporation
September 2008
HardCopy Series Handbook, Volume 1
V
OH
High-level output
voltage
I
OH
= –7.6 mA (1) V
TT
+ 0.57 V
V
OL
Low-level output
voltage
I
OL
= 7.6 mA (2) V
TT
– 0.57 V
Table 10–14. SSTL-2 Class II Specifications
Symbol Parameter Conditions Minimum Typical Maximum Units
V
CCIO
I/O supply voltage 2.375 2.5 2.625 V
V
TT
Termination voltage V
REF
– 0.04 V
REF
V
REF
+ 0.04 V
V
REF
Reference voltage 1.15 1.25 1.35 V
V
IH
High-level input
voltage
V
REF
+ 0.18 V
CCIO
+ 0.3 V
V
IL
Low-level input
voltage
–0.3 V
REF
– 0.18 V
V
OH
High-level output
voltage
I
OH
= –15.2 mA (1) V
TT
+ 0.76 V
V
OL
Low-level output
voltage
I
OL
= 15.2 mA (2) V
TT
– 0.76 V
Table 10–15. SSTL-3 Class I Specifications
Symbol Parameter Conditions Minimum Typical Maximum Units
V
CCIO
I/O supply voltage 3.0 3.3 3.6 V
V
TT
Termination voltage V
REF
– 0.05 V
REF
V
REF
+ 0.05 V
V
REF
Reference voltage 1.3 1.5 1.7 V
V
IH
High-level input
voltage
V
REF
+ 0.2 V
CCIO
+ 0.3 V
V
IL
Low-level input
voltage
–0.3 V
REF
– 0.2 V
V
OH
High-level output
voltage
I
OH
= –8 mA (1) V
TT
+ 0.6 V
V
OL
Low-level output
voltage
I
OL
= 8 mA (2) V
TT
– 0.6 V
Table 10–13. SSTL-2 Class I Specifications (Part 2 of 2)
Symbol Parameter Conditions Minimum Typical Maximum Units