Selectable I/O Standards in Stratix II and Stratix II GX Devices
1
Stratix II and Stratix II GX devices support both input and
output levels for 2.5-V operation with VCCIO voltage level
support of 2.5 V 5%, which is narrower than defined in the
Normal Range of the EIA/JEDEC standard.
1.8 V
The 1.8-V I/O standard is formulated under EIA/JEDEC Standard,
EIA/JESD8-7: 1.8-V 0.15-V (Normal Range), and 1.2-V – 1.95-V (Wide
Range) Power Supply Voltage and Interface Standard for
Non-Terminated Digital Integrated Circuit.
The standard defines the DC interface parameters for high-speed,
low-voltage, non-terminated digital circuits driving or being driven by
other 1.8-V devices. This standard is a general-purpose, single-ended
standard used for 1.8-V applications. It does not require the use of a VREF
or a VTT.
1
Stratix II and Stratix II GX devices support both input and
output levels for 1.8-V operation with VCCIO voltage level
support of 1.8 V 5%, which is narrower than defined in the
Normal Range of the EIA/JEDEC standard.
1.5 V
The 1.5-V I/O standard is formulated under EIA/JEDEC Standard,
JESD8-11: 1.5-V 0.1-V (Normal Range) and 0.9-V – 1.6-V (Wide Range)
Power Supply Voltage and Interface Standard for Non-Terminated
Digital Integrated Circuit.
The standard defines the DC interface parameters for high-speed,
low-voltage, non-terminated digital circuits driving or being driven by
other 1.5-V devices. This standard is a general-purpose, single-ended
standard used for 1.5-V applications. It does not require the use of a VREF
or a VTT.
1
Stratix II and Stratix II GX devices support both input and
output levels for 1.5-V operation VCCIO voltage level support of
1.5 V 5%, which is narrower than defined in the Normal Range
of the EIA/JEDEC standard.
3.3-V PCI
The 3.3-V PCI I/O standard is formulated under PCI Local Bus
Specification Revision 2.2 developed by the PCI Special Interest Group
(SIG).
Altera Corporation
January 2008
4–5
Stratix II Device Handbook, Volume 2
ALTERA [ ALTERA CORPORATION ]
