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EBD21RD4ABNA-10 PDF预览

EBD21RD4ABNA-10

更新时间: 2024-01-18 12:04:54
品牌 Logo 应用领域
尔必达 - ELPIDA 存储内存集成电路动态存储器双倍数据速率时钟
页数 文件大小 规格书
19页 176K
描述
2GB Registered DDR SDRAM DIMM

EBD21RD4ABNA-10 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:DIMM包装说明:DIMM, DIMM184
针数:184Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.32.00.36
风险等级:5.92Is Samacsys:N
访问模式:DUAL BANK PAGE BURST最长访问时间:0.8 ns
其他特性:AUTO/SELF REFRESH最大时钟频率 (fCLK):100 MHz
I/O 类型:COMMONJESD-30 代码:R-XDMA-N184
内存密度:19327352832 bit内存集成电路类型:DDR DRAM MODULE
内存宽度:72湿度敏感等级:1
功能数量:1端口数量:1
端子数量:184字数:268435456 words
字数代码:256000000工作模式:SYNCHRONOUS
最高工作温度:70 °C最低工作温度:
组织:256MX72输出特性:3-STATE
封装主体材料:UNSPECIFIED封装代码:DIMM
封装等效代码:DIMM184封装形状:RECTANGULAR
封装形式:MICROELECTRONIC ASSEMBLY峰值回流温度(摄氏度):225
电源:2.5 V认证状态:Not Qualified
刷新周期:8192自我刷新:YES
最大待机电流:0.42 A子类别:DRAMs
最大压摆率:7.24 mA最大供电电压 (Vsup):2.7 V
最小供电电压 (Vsup):2.3 V标称供电电压 (Vsup):2.5 V
表面贴装:NO技术:CMOS
温度等级:COMMERCIAL端子形式:NO LEAD
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIEDBase Number Matches:1

EBD21RD4ABNA-10 数据手册

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PRELIMINARY DATA SHEET  
2GB Registered DDR SDRAM DIMM  
EBD21RD4ABNA (256M words × 72 bits, 2 Banks)  
Description  
Features  
The EBD21RD4ABNA is a 256M words × 72 bits, 2  
bank Double Data Rate (DDR) SDRAM Module,  
mounted 36 pieces of DDR SDRAM sealed in TCP  
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-bit 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 register,  
the on-chip Delay Locked Loop (DLL) can be set  
enable or disable. This module provides high density  
mounting without utilizing surface mount technology.  
Decoupling capacitors are mounted beside each TCP  
on the module board.  
184-pin socket type dual in line memory module  
(DIMM)  
PCB height: 30.48mm  
Lead pitch: 1.27mm  
2.5V power supply  
Data rate: 266Mbps/200Mbps (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  
Data inputs and outputs are synchronized with DQS  
4 internal banks for concurrent operation  
(Component)  
Note: Do not push the cover or drop the modules in  
order to avoid mechanical defects, which may  
result in electrical defects.  
DQS is edge aligned with data for READs; center  
aligned with data for WRITEs  
Differential clock inputs (CK and /CK)  
LL 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  
1 piece of PLL clock driver, 1 piece of register driver  
and 1 piece of serial EEPROM (2k bits EEPROM) for  
Presence Detect (PD)  
Document No. E0273E20 (Ver. 2.0)  
Date Published Aug 2002 (K) Japan  
URL: http://www.elpida.com  
Elpida Memory, Inc. 2002  

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