Altera Cyclone IV - Page 150

7–4 Chapter 7: External Memory Interfaces in Cyclone IV Devices
Cyclone IV Devices Memory Interfaces Pin Support
Cyclone IV Device Handbook, March 2016 Altera Corporation
Volume 1
Tab le 7 –1 lists the number of DQS or DQ groups supported on each side of the
Cyclone IV GX device.
Table 7–1. Cyclone IV GX Device DQS and DQ Bus Mode Support for Each Side of the Device
Device Package Side
Number
×8
Groups
Number
×9
Groups
Number
×16
Groups
Number
×18
Groups
Number
×32
Groups
Number
×36
Groups
EP4CGX15 169-pin FBGA
Right 1000——
Top
(1)
1000——
Bottom
(2)
1000——
EP4CGX22
EP4CGX30
169-pin FBGA
Right 1000——
Top
(1)
1000——
Bottom
(2)
1000——
324-pin FBGA
Right 2211——
Top 2211——
Bottom 2211——
484-pin FBGA
(3)
Right 422211
Top 422211
Bottom 422211
EP4CGX50
EP4CGX75
484-pin FBGA
Right 422211
Top 422211
Bottom 422211
672-pin FBGA
Right 422211
Top 422211
Bottom 422211
EP4CGX110
EP4CGX150
484-pin FBGA
Right 422211
Top 422211
Bottom 422211
672-pin FBGA
Right 422211
Top 422211
Bottom 422211
896-pin FBGA
Right 632211
Top 633311
Bottom 633311
Notes to Table 7–1:
(1) Some of the DQ pins can be used as RUP and RDN pins. You cannot use these groups if you are using these pins as RUP and RDN pins for
OCT calibration.
(2) Some of the DQ pins can be used as RUP pins while the DM pins can be used as RDN pins. You cannot use these groups if you are using the
RUP and RDN pins for OCT calibration.
(3) Only available for EP4CGX30 device.