Timing Specifications
Table 5–38. Default Loading of Different I/O Standards for Cyclone II Device
(Part 2 of 2)
I/O Standard
Capacitive Load
Unit
SSTL_18_CLASS_II
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
1.5V_HSTL_CLASS_I
1.5V_HSTL_CLASS_II
1.8V_HSTL_CLASS_I
1.8V_HSTL_CLASS_II
DIFFERENTIAL_SSTL_2_CLASS_I
DIFFERENTIAL_SSTL_2_CLASS_II
DIFFERENTIAL_SSTL_18_CLASS_I
DIFFERENTIAL_SSTL_18_CLASS_II
1.5V_DIFFERENTIAL_HSTL_CLASS_I
1.5V_DIFFERENTIAL_HSTL_CLASS_II
1.8V_DIFFERENTIAL_HSTL_CLASS_I
1.8V_DIFFERENTIAL_HSTL_CLASS_II
LVDS
1.2V_HSTL
1.2V_DIFFERENTIAL_HSTL
5–32
Cyclone II Device Handbook, Volume 1
Altera Corporation
February 2008
ALTERA [ ALTERA CORPORATION ]
