EP4SE360F35I4 Datasheet, PDF (251/432 Pages) Altera Corporation – This section provides a complete overview of all features relating to the Stratix IV device family, which is the most architecturlly advanced

Chapter 7: External Memory Interfaces in Stratix IV Devices
Memory Interfaces Pin Support
7–27
Rules to Combine Groups
In 780-, 1152-, and some 1517-pin package devices, there is at most one ×16/×18 group
per I/O sub-bank. You can combine two ×16/×18 groups from a single side of the
device for a ×36 interface.
For devices that do not have four ×16/×18 groups in a single side of the device to
form two ×36 groups for read and write data, you can form one ×36 group on one side
of the device and another ×36 group on the other side of the device.
For vertical migration with the ×36 emulation implementation, check if migration is
possible by enabling device migration in the Quartus II project. The Quartus II
software supports the use of four ×8/×9 DQ groups for write data pins and migration
of these groups across device density. Table 7–3 lists the possible combinations to use
two ×16/×18 DQS/DQ groups to form a ×32/×36 group on Stratix IV devices lacking
a native ×32/×36 DQS/DQ group.
Table 7–3. Possible Group Combinations in Stratix IV Devices (Part 1 of 2)
Package
780-Pin
FineLine BGA
1152-Pin
FineLine BGA
Device Density
■ EP4SGX70
■ EP4SGX110
■ EP4SGX180
■ EP4SGX230
■ EP4SGX290
■ EP4SGX360
■ EP4SE230
■ EP4SE360
■ EP4SGX70
■ EP4SGX110
■ EP4SGX180
■ EP4SGX230
■ EP4SGX290 ⁽²⁾
■ EP4SGX360 ⁽²⁾
■ EP4SGX530 ⁽²⁾
■ EP4SE360
■ EP4SE530
■ EP4SE820
I/O Sub-Bank Combinations
3A and 4A, 7A and 8A (bottom and top I/O banks) ⁽¹⁾
1A and 2A, 5A and 6A (left and right I/O banks)
3A and 4A, 7A and 8A (bottom and top I/O banks) ⁽¹⁾
3A and 4A, 7A and 8A (bottom and top I/O banks) ⁽¹⁾
1A and 1C, 6A and 6C (left and right I/O banks)
3A and 3B, 4A and 4B (bottom I/O banks)
7A and 7B, 8A and 8B (top I/O banks)
1A and 1C, 2A and 2C (left I/O banks)
3A and 3B, 4A and 4B (bottom I/O banks)
5A and 5C, 6A and 6C (right I/O banks)
7A and 7B, 8A and 8B (top I/O banks)
February 2011 Altera Corporation
Stratix IV Device Handbook
Volume 1