EP2SGX90EF1152C3 Altera, EP2SGX90EF1152C3 Datasheet - Page 138

• Manufacturer Part Number: EP2SGX90EF1152C3
• Description: Stratix II GX
• Manufacturer: Altera

I/O Structure
2–130
Stratix II GX Device Handbook, Volume 1
Series termination without
calibration
Table 2–34. On-Chip Termination Support by I/O Banks (Part 1 of 2)
On-Chip Termination Support
On-Chip Termination
Stratix II GX devices provide differential (for the LVDS technology I/O
standard) and series on-chip termination to reduce reflections and
maintain signal integrity. On-chip termination simplifies board design by
minimizing the number of external termination resistors required.
Termination can be placed inside the package, eliminating small stubs
that can still lead to reflections.
Stratix II GX devices provide four types of termination:
■
■
■
■
Table 2–34
bank.
3.3-V LVTTL
3.3-V LVCMOS
2.5-V LVTTL
2.5-V LVCMOS
1.8-V LVTTL
1.8-V LVCMOS
1.5-V LVTTL
1.5-V LVCMOS
SSTL-2 class I and 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
1.2-V HSTL
Differential termination (R
Series termination (R
Series termination (R
Parallel termination (R
I/O Standard Support
shows the Stratix II GX on-chip termination support per I/O
S
S
) without calibration
) with calibration
T
) with calibration
Top and Bottom Banks
D
)
(3, 4, 7, 8)
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
Altera Corporation
Left Bank (1, 2)
October 2007
v
v
v
v
v
v
v
v
v
v
v
v
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