Altera Stratix - Page 157

Altera Corporation 4–21
June 2006 Stratix Device Handbook, Volume 2
Selectable I/O Standards in Stratix & Stratix GX Devices
Tables 4–3 and 4–4 list the I/O standards that Stratix GX enhanced and
fast PLL pins support. Figure 4–19 shows the I/O standards that each
Stratix GX I/O bank supports.
Table 4–3. I/O Standards Supported in Stratix & Stratix GX Enhanced PLL Pins
I/O Standard
Input Output
INCLK FBIN PLLENABLE EXTCLK
LVTTL
vvvv
LVCMOS
vvvv
2.5 V
vv v
1.8 V
vv v
1.5 V
vv v
3.3-V PCI
vv v
3.3-V PCI-X 1.0
vv v
LVPECL
vv v
3.3-V PCML
vv v
LVDS
vv v
HyperTransport technology
vv v
Differential HSTL
vv
Differential SSTL
v
3.3-V GTL
vv v
3.3-V GTL+
vv v
1.5-V HSTL Class I
vv v
1.5-V HSTL Class II
vv v
SSTL-18 Class I
vv v
SSTL-18 Class II
vv v
SSTL-2 Class I
vv v
SSTL-2 Class II
vv v
SSTL-3 Class I
vv v
SSTL-3 Class II
vv v
AGP (1× and 2×)
vv v
CTT
vv v