HC230F1020 Altera, HC230F1020 Datasheet - Page 205

• Manufacturer Part Number: HC230F1020
• Manufacturer: Altera

Specifications of HC230F1020

• Lead Free Status / RoHS Status: Not Compliant

On-Chip
Termination
Altera Corporation
September 2008
Similarly, when using HardCopy II HC230 and HC240 devices as
companion devices, you must restrict the I/O drive settings, as shown in
Table
Like Stratix II devices, HardCopy II devices feature on-chip termination
(OCT) to provide I/O impedance matching and termination capabilities.
To maintain compatibility with Stratix II prototype devices, HardCopy II
devices support on-chip series termination (RS) for single-ended I/O
standards and on-chip differential termination (RD) for differential I/O
standards. However, some HardCopy II pins do not support the on-chip
termination that may be available on the same Stratix II pin. This section
highlights the termination schemes that HardCopy II devices support.
Notes to
(1)
(2)
3.3-V LVTTL
3.3-V LVCMOS
2.5-V LVTTL/LVCMOS
1.8-V LVTTL/LVCMOS
1.5-V LVCMOS
SSTL-2 class I
SSTL-2 class II
SSTL-18 class I
SSTL-18 class II
HSTL-18 class I
HSTL-18 class II
HSTL-15 class I
HSTL-15 class II
Table 8–11. HC230 and HC240 Device Programmable Drive Strengths
HardCopy II devices do not support some of the settings available in the Stratix II
prototype device. For more information, refer to the Stratix II Device Family Data
Sheet in volume 1 of the Stratix II Device Handbook.
Row I/O pins do not support SSTL I/O standards.
8–11.
I/O Standard
Table
8–11:
Strength Setting (mA) for
24, 20, 16, 12, 8, 4
24, 20, 16, 12, 8, 4
I
OH
Column I/O Pins
12, 10, 8, 6, 4, 2
12, 10, 8, 6, 4
12, 10, 8, 6, 4
12, 10, 8, 6, 4
20, 18, 16, 8
and I
16, 12, 8, 4
24, 20, 16
20, 18, 16
20, 18, 16
8, 6, 4, 2
12, 8
OL
Current
(1)
(1)
Strength Setting (mA) for
I
OH
On-Chip Termination
Row I/O Pins
and I
8, 6, 4, 2
12, 8, 4
12, 8, 4
8, 4
4, 2
(2)
(2)
(2)
OL
-
-
-
-
-
Preliminary
Current
8–17