EP2S90F1020C5 Datasheet, PDF (440/768 Pages) Altera Corporation – Stratix II Device Handbook, Volume 1

Stratix II and Stratix II GX I/O Standards Support
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■ On-chip differential termination
■ Peripheral component interconnect (PCI) clamping diode
■ Hot socketing
For a detailed description of each I/O feature, refer to the Stratix II
Architecture chapter in volume 1 of the Stratix II Device Handbook or the
Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device
Handbook.
Stratix II and
Stratix II GX I/O
Standards
Support
Stratix II and Stratix II GX devices support a wide range of industry I/O
standards. Table 4–1 shows which I/O standards Stratix II devices
support as well as typical applications.
Table 4–1. Stratix II and Stratix II GX I/O Standard Applications (Part 1 of 2)
I/O Standard
LVTTL
LVCMOS
2.5 V
1.8 V
1.5 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
1.2-V HSTL
Differential SSTL-2 Class I
Differential SSTL-2 Class II
Differential SSTL-18 Class I
Differential SSTL-18 Class II
1.8-V differential HSTL Class I
1.8-V differential HSTL Class II
1.5-V differential HSTL Class I
Application
General purpose
General purpose
General purpose
General purpose
General purpose
PC and embedded system
PC and embedded system
DDR SDRAM
DDR SDRAM
DDR2 SDRAM
DDR2 SDRAM
QDRII SRAM/RLDRAM II/SRAM
QDRII SRAM/RLDRAM II/SRAM
QDRII SRAM/SRAM
QDRII SRAM/SRAM
General purpose
DDR SDRAM
DDR SDRAM
DDR2 SDRAM
DDR2 SDRAM
Clock interfaces
Clock interfaces
Clock interfaces
4–2
Stratix II Device Handbook, Volume 2
Altera Corporation
January 2008