EP2C70F672C7N Altera, EP2C70F672C7N Datasheet - Page 58

• Manufacturer Part Number: EP2C70F672C7N
• Description: IC CYCLONE II FPGA 70K 672-FBGA
• Manufacturer: Altera
• Series: Cyclone® IIr

Specifications of EP2C70F672C7N

• Number Of Logic Elements/cells: 68416
• Number Of Labs/clbs: 4276
• Total Ram Bits: 1152000
• Number Of I /o: 422
• Voltage - Supply: 1.15 V ~ 1.25 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 672-FBGA
• For Use With: P0304 - DE2-70 CALL FOR ACADEMIC PRICING544-1703 - VIDEO KIT W/CYCLONE II EP2C70N544-1699 - DSP KIT W/CYCLONE II EPS2C70N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Other names: 544-1689

I/O Structure & Features
Figure 2–26. Cyclone II Device DQ & DQS Groups in ×8/×9 Mode
Notes to
(1)
(2)
2–46
Cyclone II Device Handbook, Volume 1
EP2C5
EP2C8
EP2C15
EP2C20
Table 2–15. Cyclone II DQS & DQ Bus Mode Support (Part 1 of 2)
Device
Each DQ group consists of a DQS pin, DM pin, and up to nine DQ pins.
This is an idealized pin layout. For actual pin layout, refer to the pin table.
Figure
2–26:
144-pin TQFP
208-pin PQFP
144-pin TQFP
208-pin PQFP
256-pin FineLine BGA
256-pin FineLine BGA
484-pin FineLine BGA
256-pin FineLine BGA
484-pin FineLine BGA
DQ Pins
Package
Cyclone II devices support the data strobe or read clock signal (DQS)
used in DDR and DDR2 SDRAM. Cyclone II devices can use either
bidirectional data strobes or unidirectional read clocks. The dedicated
external memory interface in Cyclone II devices also includes
programmable delay circuitry that can shift the incoming DQS signals to
center align the DQS signals within the data window.
The DQS signal is usually associated with a group of data (DQ) pins. The
phase-shifted DQS signals drive the global clock network, which is used
to clock the DQ signals on internal LE registers.
Table 2–15
(2)
(2)
®
shows the number of DQ pin groups per device.
Number of ×8
Groups
16
16
7
7
8
3
3
8
8
(3)
(3)
(3)
(4)
(4)
DQS Pin
Groups (5),
(2)
Number of ×9
3
4
3
4
4
4
8
4
8
Notes
(6)
Note (1)
(1),
DQ Pins
Number of ×16
(2)
Groups
0
3
0
3
4
4
8
4
8
Altera Corporation
Number of ×18
Groups (5),
February 2007
DM Pin
0
3
0
3
4
4
8
4
8
(6)