EP4SGX290KF40C3N Altera, EP4SGX290KF40C3N Datasheet - Page 199

• Manufacturer Part Number: EP4SGX290KF40C3N
• Description: IC STRATIX IV GX 290K 1517FBGA
• Manufacturer: Altera
• Series: Stratix® IV GXr

Specifications of EP4SGX290KF40C3N

• Number Of Logic Elements/cells: 291200
• Number Of Labs/clbs: 11648
• Total Ram Bits: 17248
• Number Of I /o: 744
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 1517-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Other names: 544-2624

Chapter 6: I/O Features in Stratix IV Devices
On-Chip Termination Support and I/O Termination Schemes
February 2011 Altera Corporation
f
1
Table 6–6. Selectable I/O Standards for On-Chip Series Termination with and Without Calibration
Left-Shift Series Termination Control
Stratix IV devices support left-shift series termination control. You can use left-shift
series termination control to get the calibrated OCT R
value of the external reference resistors connected to the RUP and RDN pins. This feature
is useful in applications that require both 25-Ω and 50-Ω calibrated OCT R
V
SSTL-2 Class I and Class II I/O standards, you only need one OCT calibration block
with 50-Ω external reference resistors.
You can enable the left-shift series termination control feature in the ALTIOBUF
megafunction in the Quartus II software. The Quartus II software only allows
left-shift series termination control for 25-Ω calibrated OCT R
reference resistors connected to the RUP and RDN pins. You can only use left-shift series
termination control for the I/O standards that support 25-Ω calibrated OCT R
This feature is automatically enabled if you are using a bidirectional I/O with 25-Ω
calibrated OCT R
For more information about how to enable the left-shift series termination feature in
the ALTIOBUF megafunction, refer to the
Guide.
(Part 2 of 2)
SSTL-15 Class I
SSTL-15 Class II
HSTL-18 Class I
HSTL-18 Class II
HSTL-15 Class I
HSTL-15 Class II
HSTL-12 Class I
HSTL-12 Class II
CCIO
. For example, if your application requires 25-Ω and 50-Ω calibrated OCT R
I/O Standard
S
and 50-Ω parallel OCT.
Row I/O (Ω)
On-Chip Series Termination Setting
50
—
50
25
50
—
50
—
I/O Buffer (ALTIOBUF) Megafunction User
S
with half of the impedance
Stratix IV Device Handbook Volume 1
S
with 50-Ω external
Column I/O (Ω)
50
25
50
25
50
25
50
25
S
at the same
S
.
S
for
6–27