EP2S180F1508I4 Datasheet, PDF (94/238 Pages) Altera Corporation – Section I. Stratix II Device Family Data Sheet

I/O Structure
■ 1.5-V HSTL Class I and II
■ 1.8-V HSTL Class I and II
■ 1.2-V HSTL
■ SSTL-2 Class I and II
■ SSTL-18 Class I and II
Table 2–16 describes the I/O standards supported by Stratix II devices.
Table 2–16. Stratix II Supported I/O Standards (Part 1 of 2)
I/O Standard
Input Reference Output Supply Board Termination
Type
Voltage (V_REF) (V) Voltage (V_CCIO) (V) Voltage (V_TT) (V)
LVTTL
Single-ended
-
3.3
-
LVCMOS
Single-ended
-
3.3
-
2.5 V
Single-ended
-
2.5
-
1.8 V
Single-ended
-
1.8
-
1.5-V LVCMOS
Single-ended
-
1.5
-
3.3-V PCI
Single-ended
-
3.3
-
3.3-V PCI-X mode 1
Single-ended
-
3.3
-
LVDS
Differential
-
2.5 (3)
-
LVPECL (1)
Differential
-
3.3
-
HyperTransport technology Differential
-
2.5
-
Differential 1.5-V HSTL
Class I and II (2)
Differential
0.75
1.5
0.75
Differential 1.8-V HSTL
Class I and II (2)
Differential
0.90
1.8
0.90
Differential SSTL-18 Class Differential
I and II (2)
0.90
1.8
0.90
Differential SSTL-2 Class I Differential
and II (2)
1.25
2.5
1.25
1.2-V HSTL(4)
Voltage-referenced
0.6
1.2
0.6
1.5-V HSTL Class I and II Voltage-referenced
0.75
1.5
0.75
1.8-V HSTL Class I and II Voltage-referenced
0.9
1.8
0.9
SSTL-18 Class I and II
Voltage-referenced
0.90
1.8
0.90
2–86
Stratix II Device Handbook, Volume 1
Altera Corporation
May 2007