DC & Switching Characteristics
Table 5–71. Default Loading of Different I/O Standards for Stratix II (Part 2
of 2)
I/O Standard
CapacitiveLoad Unit
SSTL-2 Class II
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
SSTL-18 Class I
SSTL-18 Class II
1.5-V HSTL Class I
1.5-V HSTL Class II
1.8-V HSTL Class I
1.8-V HSTL Class II
1.2-V HSTL with OCT
Differential SSTL-2 Class I
Differential SSTL-2 Class II
Differential SSTL-18 Class I
Differential SSTL-18 Class II
1.5-V Differential HSTL Class I
1.5-V Differential HSTL Class II
1.8-V Differential HSTL Class I
1.8-V Differential HSTL Class II
LVDS
HyperTransport
LVPECL
Altera Corporation
April 2011
5–53
Stratix II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
