Datasheet > EBD52UC8AAFA

EBD52UC8AAFA

更新时间： 2022-12-22 00:38:55

品牌	Logo	应用领域
尔必达 - ELPIDA		动态存储器双倍数据速率
页数	文件大小	规格书
18页	180K
描述
512MB Unbuffered DDR SDRAM DIMM

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EBD52UC8AAFA 数据手册

DATA SHEET

512MB Unbuffered DDR SDRAM DIMM

EBD52UC8AAFA (64M words × 64 bits, 2 Ranks)

Description

Features

The EBD52UC8AAFA is 64M words × 64 bits, 2 ranks

Double Data Rate (DDR) SDRAM unbuffered module,

mounting 16 pieces of 256M bits DDR SDRAM sealed

in TSOP package. Read and write operations are

performed at the cross points of the CK and the /CK.

This high-speed data transfer is realized by the 2 bits

prefetch-pipelined architecture. Data strobe (DQS)

both for read and write are available for high speed and

reliable data bus design. By setting extended mode

set enable or disable. This module provides high

density mounting without utilizing surface mount

• 184-pin socket type dual in line memory module

(DIMM)

PCB height: 31.75mm

Lead pitch: 1.27mm

• 2.5V power supply

• Data rate: 266Mbps (max.)

• 2.5 V (SSTL_2 compatible) I/O

• Double Data Rate architecture; two data transfers per

clock cycle

• Bi-directional, data strobe (DQS) is transmitted

/received with data, to be used in capturing data at

the receiver

technology.

Decoupling capacitors are mounted

beside each TSOP on the module board.

• Data inputs and outputs are synchronized with DQS

• 4 internal banks for concurrent operation

(Component)

• DQS is edge aligned with data for READs; center

aligned with data for WRITEs

• Differential clock inputs (CK and /CK)

• DLL aligns DQ and DQS transitions with CK

transitions

• Commands entered on each positive CK edge; data

referenced to both edges of DQS

• Auto precharge option for each burst access

• Programmable burst length: 2, 4, 8

• Programmable /CAS latency (CL): 2, 2.5

• Refresh cycles: (8192 refresh cycles /64ms)

7.8µs maximum average periodic refresh interval

• 2 variations of refresh

Auto refresh

Self refresh

Document No. E0362E20 (Ver. 2.0)

Date Published May 2003 (K) Japan

URL: http://www.elpida.com

This product became EOL in June, 2004.

Elpida Memory, Inc. 2003

12 3 4 5 6 7...18

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