Ssram, Ssram –52 – Altera Stratix IV E FPGA Development Board User Manual

Page 60

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2–52

Chapter 2: Board Components

Memory

Stratix IV E FPGA Development Board Reference Manual

May 2011

Altera Corporation

Table 2–48

lists the RLDRAM II CIO component reference and manufacturing

information.

SSRAM

The SSRAM device consists of a single standard synchronous SRAM, providing 2-MB
memory interface with a 36-bit data bus. This device is part of the shared FSM bus
which connects to the flash memory, SSRAM, and MAX

II CPLD EPM2210 System

Controller. The device speed is 250-MHz single-data-rate.

U24.D10

Output data clock N

RLDC_QK_N0

Differential 1.5-V

HSTL Class I

AB32

U24.R3

Output data clock N

RLDC_QK_N1

AJ32

U24.D11

Output data clock P

RLDC_QK_P0

AB31

U24.R2

Output data clock P

RLDC_QK_P1

AJ31

U24.F12

Data valid

RLDC_QVLD

1.5-V HSTL Class I

AC32

U24.L1

Input reference voltage

RLDC_REFn

AD31

U24.M1

Write enable

RLDC_WEn

AE32

Table 2–47. RLDRAM II CIO Pin Assignments, Schematic Signal Names, and Functions (Part 3 of 3)

Board Reference

Description

Schematic Signal Name

I/O Standard

Stratix IV E Device

Pin Number

Table 2–48. RLDRAM II CIO Component Reference and Manufacturing Information

Board

Reference

Description

Manufacturer

Manufacturing

Part Number

Manufacturer

Website

U24

533 MHz RLDRAM II CIO 16M x36, BGA-144 Micron

MT49H16M36HT-18

www.micron.com

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