HC4GX15 Datasheet, PDF (77/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 7: External Memory Interfaces in HardCopy IV Devices
7–11
Memory Interfaces Pin Support
Figure 7–4 through Figure 7–7 show the number of DQS/DQ groups available per
bank in each HardCopy IV E device. These figures present the package-bottom view
of the specified HardCopy IV E devices.
Figure 7–4. Number of DQS/DQ Groups per Bank in HC4E25W Devices in a 484-pin FineLine BGA Package (Note 1)
DLL 1
I/O Bank 3C
24 User I/Os
×4=2
×8/×9=1
×16/×18=0
I/O Bank 4C
24 User I/Os
×4=3
×8/×9=1
×16/×18=0
DLL 4
I/O Bank 2A
24 User I/Os
×4=3
×8/×9=1
×16/×18=0
I/O Bank 5A
24 User I/Os
×4=3
×8/×9=1
×16/×18=0
I/O Bank 2C
24 User I/Os
×4=3
×8/×9=1
×16/×18=0
I/O Bank 1C
24 User I/Os
×4=3
×8/×9=1
×16/×18=0
484-pin FineLine BGA
I/O Bank 5C
24 User I/Os
×4=3
×8/×9=1
×16/×18=0
I/O Bank 6C
24 User I/Os
×4=3
×8/×9=1
×16/×18=0
I/O Bank 1A
24 User I/Os
×4=3
×8/x9=1
×16/x18=0
DLL 2
I/O Bank 8C
24 User I/Os
×4=2
×8/×9=1
×16/×18=0
Note to Figure 7–4:
(1) These devices do not support ×32/×36 mode.
I/O Bank 7C
24 User I/Os
×4=3
×8/×9=1
×16/×18=0
I/O Bank 6A
24 User I/Os
×4=3
×8/×9=1
×16/×18=0
DLL 3
© January 2010 Altera Corporation
HardCopy IV Device Handbook, Volume 1