EP3C55F780I7 Datasheet, PDF (149/274 Pages) Altera Corporation – This section provides a complete overview of all features relating to the Cyclone III device family

Chapter 8: External Memory Interfaces in the Cyclone III Device Family
8–7
Cyclone III Device Family Memory Interfaces Pin Support
Table 8–2 lists the numbers of DQS or DQ groups supported on each side of the
Cyclone III LS device only.
Table 8–2. Cyclone III LS Device DQS and DQ Bus Mode Support for Each Side of the Device
Device
Package
EP3CLS70
484-pin FineLine
BGA/
484-pin Ultra FineLine
BGA ⁽¹⁾
780-pin FineLine BGA
EP3CLS100
484-pin FineLine
BGA/
484-pin Ultra FineLine
BGA ⁽¹⁾
780-pin FineLine BGA
484-pin FineLine BGA
(1)
EP3CLS150
780-pin FineLine BGA
484-pin FineLine BGA
(1)
EP3CLS200
780-pin FineLine BGA
Side
Left
Right
Top
Bottom
Left
Right
Top
Bottom
Left
Right
Top
Bottom
Left
Right
Top
Bottom
Left
Right
Top
Bottom
Left
Right
Top
Bottom
Left
Right
Top
Bottom
Left
Right
Top
Bottom
Number
of ×8
Groups
2
2
2
2
4
4
6
6
2
2
2
2
4
4
6
6
2
2
2
2
4
4
6
6
2
2
2
2
4
4
6
6
Number
of ×9
Groups
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Number
of ×16
Groups
1
1
1
1
2
2
2
2
1
1
1
1
2
2
2
2
1
1
1
1
2
2
2
2
1
1
1
1
2
2
2
2
Number
of ×18
Groups
1
1
1
1
2
2
2
2
1
1
1
1
2
2
2
2
1
1
1
1
2
2
2
2
1
1
1
1
2
2
2
2
Number
of ×32
Groups
—
—
—
—
1
1
1
1
—
—
—
—
1
1
1
1
—
—
—
—
1
1
1
1
—
—
—
—
1
1
1
1
Number
of ×36
Groups
—
—
—
—
1
1
1
1
—
—
—
—
1
1
1
1
—
—
—
—
1
1
1
1
—
—
—
—
1
1
1
1
Note to Table 8–2:
(1) This device package does not support x32 or 36 mode.
July 2012 Altera Corporation
Cyclone III Device Handbook
Volume 1