Selectable I/O Standards in Cyclone II Devices
Table 10–5. Cyclone II Regular I/O Standards Support
I/O Banks for EP2C15, EP2C20, EP2C35, EP2C50 and I/O Banks for EP2C5 and
EP2C70 Devices EP2C8 Devices
I/O Standard
1
2
3
4
5
6
7
8
1
2
3
4
LVTTL
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
LVCMOS
2.5 V
1.8 V
1.5 V
v
v
v
v
v
v
3.3-V PCI
—
—
—
—
—
—
3.3-V PCI-X
—
—
—
—
—
—
SSTL-2 class I
SSTL-2 class II
SSTL-18 class I
SSTL-18 class II
1.8-V HSTL class I
1.8-V HSTL class II
1.5-V HSTL class I
1.5-V HSTL class II
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
(1)
(1)
(1)
(1)
(1)
(1)
v
v
v
v
v
v
(1)
(1)
(1)
(1)
(1)
(1)
v
v
v
v
v
v
(1)
(1)
(1)
(1)
(1)
(1)
v
v
v
v
v
v
Pseudo-differential
SSTL-2
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
Pseudo-differential
SSTL-18
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
1.8-V pseudo-
differential HSTL
1.5-V pseudo-
differential HSTL
LVDS
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
v
(3)
(4)
RSDS and mini-LVDS
Differential LVPECL
Notes to Table 10–5:
(1) These I/O banks support SSTL-18 class II and 1.8- and 1.5-V HSTL class II inputs.
(2) Pseudo-differential I/O standards are only supported for clock inputs and dedicated PLL_OUToutputs. Refer to
Table 10–1 for more information.
(3) This I/O standard is only supported for outputs.
(4) This I/O standard is only supported for the clock inputs.
Altera Corporation
February 2008
10–23
Cyclone II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
