External Memory Interface Handbook Volume 2: Design Guidelines

Download
ID 683385
Date 5/08/2017
Public
Document Table of Contents

1.1.19.5. Maximum Number of RLDRAM II Interfaces Supported per FPGA

The following table lists the maximum number of independent RLDRAM II interfaces that can be fitted in the smallest and biggest devices and pin packages assuming the device is blank.

One common I/O ×36 interface consists of:

  • 36 DQ
  • 1 DM pin
  • 2 DK, DK# pin pairs
  • 2 QK, QK# pin pairs
  • 1 CK, CK# pin pair
  • 24 address pins
  • 1 CS# pin
  • 1 REF# pin
  • 1 WE# pin

One common I/O ×9 interface consists of:

  • 9 DQ
  • 1 DM pins
  • 1 DK, DK# pin pair
  • 1 QK, QK# pin pair
  • 1 CK, CK# pin pair
  • 25 address pins
  • 1 CS# pin
  • 1 REF# pin
  • 1 WE# pin
Table 9.  Maximum Number of RLDRAM II Interfaces Supported per FPGA

Device

Device Type

Package Pin Count

Maximum Number of RLDRAM II CIO Interfaces

Arria II GZ

EP2AGZ300

EP2AGZ350

EP2AGZ225

1,517

Two ×36 interfaces on each side

EP2AGZ300

EP2AGZ350

780

  • Three ×9 interfaces or one ×36 interface on both top and bottom sides
  • No DQ pins on the left and right sides

Arria V

5AGXB1

5AGXB3

5AGXB5

5AGXB7

5AGTD3

5AGTD7

1,517

  • Two ×36 interfaces on both top and bottom sides
  • No DQ pins on left and right sides

5AGXA1

5AGXA3

672

  • One ×36 interface on both top and bottom sides
  • One ×18 interface on the right side
  • No DQ pins on the left side

5AGXA5

5AGXA7

672

  • One ×36 interface on both top and bottom sides
  • No DQ pins on the left side

Arria V GZ

5ZGZE5

5ZGZE7

1,517

  • Four ×36 interfaces on both top and bottom sides
  • No DQ pins on left and right sides

5AGZE1

5AGZE3

780

  • On top side, three ×9 interfaces or two ×36 interfaces
  • On bottom side, two ×9 interfaces or one ×36 interfaces
  • No DQ pins on left and right sides

Stratix III

EP3SL340

1,760

  • Four ×36 components on both top and bottom sides
  • Three ×36 interfaces on both right and left sides

EP3SE50

EP3SL50

EP3SL70

484

One ×9 interface on both right and left sides

Stratix IV

EP4SGX290

EP4SGX360

EP4SGX530

1,932

  • Three ×36 interfaces on both top and bottom sides
  • Two ×36 interfaces on both right and left sides

EP4SE530

EP4SE820

1,760

  • Three ×36 interfaces on each side

EP4SGX70

EP4SGX110

EP4SGX180

EP4SGX230

780

One ×36 interface on each side (no DQ pins on right side)

Stratix V

5SGXA5

5SGXA7

1,932

  • Four ×36 interfaces on both top and bottom sides
  • No DQ pins on left and right sides

5SGXA3

5SGXA4

780

  • On top side, two ×9 interfaces or one ×18 interfaces
  • On bottom side, three ×9 interfaces or two ×36 interfaces
  • No DQ pins on left and right sides

Did you find the information on this page useful?

Characters remaining:

Feedback Message