Chapter 6: I/O Features in Cyclone IV Devices
OCT Support
Table 6–2
termination.
Table 6–2. Cyclone IV Device I/O Features Support (Part 1 of 2)
IOH/IOL Current Strength
Setting (mA)
I/O Standard
Column I/O
3.3-V LVTTL
4,8
3.3-V LVCMOS
2
3.0-V LVTTL
4,8,12,16
3.0-V LVCMOS
4,8,12,16
3.0-V PCI/PCI-X
—
2.5-V
4,8,12,16
LVTTL/LVCMOS
1.8-V
2,4,6,8,10,12,1
LVTTL/LVCMOS
6
2,4,6,8,10,12,1
1.5-V LVCMOS
6
1.2-V LVCMOS
2,4,6,8,10,12
SSTL-2 Class I
8,12
SSTL-2 Class II
16
SSTL-18 Class I
8,10,12
SSTL-18 Class II
12,16
HSTL-18 Class I
8,10,12
HSTL-18 Class II
16
HSTL-15 Class I
8,10,12
HSTL-15 Class II
16
HSTL-12 Class I
8,10,12
HSTL-12 Class II
14
Differential SSTL-2
8,12
(2),
(7)
Class I
Differential SSTL-2
16
(2),
(7)
Class II
Differential SSTL-
8,10,12
(2),
(7)
18
Differential HSTL-
8,10,12
(2),
(7)
18
Differential HSTL-
8,10,12
(2),
(7)
15
Differential HSTL-
8,10,12
(2),
(7)
12
March 2016 Altera Corporation
lists the I/O standards that support impedance matching and series
R
OCT with
S
Calibration
(1)
(9)
,
Setting, Ohm ()
Column
Row I/O
I/O
4,8
—
2
—
4,8,12,16
50,25
4,8,12,16
50,25
—
—
4,8,12,16
50,25
2,4,6,8,10,12,1
50,25
6
2,4,6,8,10,12,1
50,25
6
2,4,6,8,10
50,25
8,12
50
16
25
8,10,12
50
12,16
25
8,10,12
50
16
25
8,10,12
50
16
25
8,10
50
—
25
8,12
50
16
25
—
50
—
50
—
50
—
50
R
OCT Without
S
Calibration
Setting, Ohm ()
Row
Column
Row
(8)
(8)
I/O
I/O
I/O
—
—
—
—
—
—
50,25
50,25
50,25
50,25
50,25
50,25
—
—
—
50,25
50,25
50,25
50,25
50,25
50,25
50,25
50,25
50,25
50
50,25
50
50
50
50
25
25
25
50
50
50
25
25
25
50
50
50
25
25
25
50
50
50
25
25
25
50
50
50
—
25
—
50
50
50
25
25
25
—
50
—
—
50
—
—
50
—
—
50
—
Cyclone IV Device Handbook,
6–7
Cyclone
Cyclone
Slew
IV E I/O
IV GX I/O
Rate
Banks
Banks
Option
(6)
Support
Support
—
—
0,1,2
—
3,4,5,6,
7,8,9
1,2,3,4,
4,5,6,7,
5,6,7,8
8
0,1,2
3,4,5,6,
7,8,9
4,5,6,7,
8
3,4,7,8
4,7,8
1,2,3,4,
3,4,5,6,
0,1,2
5,6,7,8
7,8
3,4,7,8
4,7,8
Volume 1
PCI-
clamp
Diode
Support
v
v
v
v
v
v
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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