MC-458CA727EFA-A75 データシートの表示（PDF） - Elpida Memory, Inc

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MC-458CA727EFA-A75

8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE

Elpida Memory, Inc 

DATA SHEET

MOS INTEGRATED CIRCUIT

MC-458CA727

8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE

UNBUFFERED TYPE

Description

The MC-458CA727EFA and MC-458CA727PFA are 8,388,608 words by 72 bits synchronous dynamic RAM module

on which 5 pieces of 128M SDRAM : µPD45128163 are assembled.

This module provides high density and large quantities of memory in a small space without utilizing the surface-

mounting technology on the printed circuit board.

Decoupling capacitors are mounted on power supply line for noise reduction.

Features

• 8,388,608 words by 72 bits organization (ECC Type)

• Clock frequency and access time from CLK

Part number

/CAS latency

Clock frequency

(MAX.)

Access time from CLK

(MAX.)

MC-458CA727EFA-A75

MC-458CA727PFA-A75

CL = 3

CL = 2

CL = 3

CL = 2

133 MHz

100 MHz

133 MHz

100 MHz

5.4 ns

6.0 ns

5.4 ns

6.0 ns

• Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge

• Pulsed interface

• Possible to assert random column address in every cycle

• Quad internal banks controlled by BA0 and BA1 (Bank Select)

• Programmable burst-length (1, 2, 4, 8 and full page)

• Programmable wrap sequence (sequential / interleave)

• Programmable /CAS latency (2, 3)

• Automatic precharge and controlled precharge

• CBR (Auto) refresh and self refresh

• All DQs have 10 Ω ± 10 % of series resistor

• Single 3.3 V ± 0.3 V power supply

• LVTTL compatible

• 4,096 refresh cycles /64 ms

• Burst termination by Burst Stop command and Precharge command

• 168-pin dual in-line memory module (Pin pitch = 1.27 mm)

• Unbuffered type

• Serial PD

The information in this document is subject to change without notice. Before using this document, please

confirm that this is the latest version.

Not all devices/types available in every country. Please check with local Elpida Memory, Inc. for

availability and additional information.

Document No. E0060N20 (Ver. 2.0)

Date Published March 2001 CP (K)

Printed in Japan

This product became EOL in September, 2002.

Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.

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