Qdrii, Qdrii+ –50 – Altera Stratix V GX FPGA Development Board User Manual
Page 58
2–50
Chapter 2: Board Components
Memory
Stratix V GX FPGA Development Board
October 2014
Altera Corporation
Reference Manual
lists the DDR3 component reference and manufacturing information.
QDRII+
The development board supports a burst-of-4 QDRII+ SRAM memory device for
very-high-speed, low-latency memory access. The QDRII+ has a x18 interface,
providing addressing to a device of up to a 32 Mb.
The QDRII+ has separate read and write data ports with DDR signaling at up to
550 MHz. The pinout and footprint is compatible with a burst-of-2 QDRII SSRAM
memory device. Although the FPGA supports up to 350 MHz QDRII data, the fastest
RoHS compliant QDRII device being manufactured is only 333 MHz.
U17.B8
DDR3_DQ62
1.5-V SSTL Class I
G20
Data bus byte lane 7
U17.A3
DDR3_DQ63
1.5-V SSTL Class I
E20
Data bus byte lane 7
U17.D3
DDR3_DM7
1.5-V SSTL Class I
B20
Write mask byte lane 7
U17.C7
DDR3_DQS_P7
1.5-V SSTL Class I
G21
Data strobe P byte lane 7
U17.B7
DDR3_DQS_N7
1.5-V SSTL Class I
F21
Data strobe N byte lane 7
DDR3 x8 pins
U12.B3
DDR3_DQ64
1.5-V SSTL Class I
M20
Data bus byte lane 8
U12.C7
DDR3_DQ65
1.5-V SSTL Class I
L20
Data bus byte lane 8
U12.C2
DDR3_DQ66
1.5-V SSTL Class I
N22
Data bus byte lane 8
U12.C8
DDR3_DQ67
1.5-V SSTL Class I
J21
Data bus byte lane 8
U12.E3
DDR3_DQ68
1.5-V SSTL Class I
N21
Data bus byte lane 8
U12.E8
DDR3_DQ69
1.5-V SSTL Class I
K21
Data bus byte lane 8
U12.D2
DDR3_DQ70
1.5-V SSTL Class I
N20
Data bus byte lane 8
U12.E7
DDR3_DQ71
1.5-V SSTL Class I
L21
Data bus byte lane 8
U12.B7
DDR3_DM8
1.5-V SSTL Class I
M21
Write mask byte lane 8
U12.C3
DDR3_DQS_P8
1.5-V SSTL Class I
K22
Data strobe P byte lane 8
U12.D3
DDR3_DQS_N8
1.5-V SSTL Class I
J22
Data strobe N byte lane 8
Table 2–50. DDR3 Devices Pin Assignments, Schematic Signal Names, and Functions (Part 4 of 4)
Board Reference
(U12, U17, U21,
U23, U28)
Schematic Signal
Name
I/O Standard
Stratix V GX FPGA
Device Pin Number
Description
Table 2–51. DDR3 Component Reference and Manufacturing Information
Board
Reference
Description
Manufacturer
Manufacturing
Part Number
Manufacturer
Website
U17, U21,
U23, U28
16 M × 16-bit × 8 banks, 800 MHz, CL11
Micron
MT41J128M16HA-125
U12
16 M × 8-bit × 8 banks, 800 MHz, CL11
Micron
MT41J128M8JP-125