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EDD5104ABTA PDF预览

EDD5104ABTA

更新时间: 2024-11-08 22:29:11
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
50页 438K
描述
512M bits DDR SDRAM

EDD5104ABTA 数据手册

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PRELIMINARY DATA SHEET  
512M bits DDR SDRAM  
EDD5104ABTA (128M words × 4 bits)  
EDD5108ABTA (64M words × 8 bits)  
Pin Configurations  
Description  
The EDD5104AB is a 512M bits Double Data Rate  
(DDR) SDRAM organized as 33,554,432 words × 4 bits  
× 4 banks. The EDD5108AB is a 512M bits DDR  
SDRAM organized as 16,777,216 words × 8 bits × 4  
banks. 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 resistor, the on-chip  
Delay Locked Loop (DLL) can be set enable or disable.  
/xxx indicates active low signal.  
66-pin TSOP(II)10.16mm(400)  
VDD  
NC  
VDD  
DQ0  
VSS VSS  
DQ7 NC  
VSSQ VSSQ  
1
2
66  
65  
64  
63  
62  
61  
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
VDDQ VDDQ  
3
NC  
NC  
NC  
NC  
4
DQ0  
DQ1  
DQ6 DQ3  
VDDQ VDDQ  
5
VSSQ VSSQ  
6
NC  
NC  
NC  
DQ2  
NC  
NC  
7
8
DQ5 NC  
VSSQ VSSQ  
VDDQ VDDQ  
9
NC  
DQ1  
VSSQ VSSQ  
NC  
NC  
VDDQ VDDQ  
NC  
NC  
VDD  
NC  
NC  
/WE  
/CAS  
/RAS  
/CS  
NC  
BA0  
BA1  
NC  
DQ3  
NC  
NC  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
DQ4 DQ2  
VDDQ VDDQ  
They are packaged in standard 66-pin plastic TSOP  
NC  
NC  
NC  
NC  
NC  
NC  
(II)10.16mm(400).  
VSSQ VSSQ  
DQS DQS  
Features  
NC  
NC  
VDD  
NC  
NC  
NC  
2.5 V power supply: VDDQ = 2.5V ± 0.2V  
: VDD = 2.5V ± 0.2V  
Data Rate: 333Mbps/266Mbps (max.)  
VREF VREF  
VSS VSS  
NC  
DM  
/CK  
CK  
DM  
/CK  
CK  
/WE  
/CAS  
/RAS  
/CS  
NC  
BA0  
BA1  
Double Data Rate architecture; two data transfers per  
CKE CKE  
clock cycle  
NC  
A12  
A11  
A9  
NC  
A12  
A11  
A9  
Bi-directional, data strobe (DQS) is transmitted  
/received with data, to be used in capturing data at  
the receiver  
A10(AP) A10(AP)  
A8  
A8  
Data inputs, outputs, and DM are synchronized with  
A0  
A1  
A2  
A3  
VDD  
A0  
A1  
A2  
A3  
VDD  
A7  
A7  
DQS  
A6  
A6  
A5  
A5  
4 internal banks for concurrent operation  
A4  
A4  
DQS is edge aligned with data for READs; center  
VSS VSS  
aligned with data for WRITEs  
X 8  
Differential clock inputs (CK and /CK)  
X 4  
DLL aligns DQ and DQS transitions with CK  
(Top view)  
transitions  
A0 to A12  
BA0, BA1  
DQ0 to DQ7  
DQS  
Address input  
Bank select address  
Data-input/output  
Input and output data strobe  
Chip select  
Row address strobe command  
Column address strobe command  
Write enable  
Input mask  
Clock input  
Differential clock input  
Clock enable  
Input reference voltage  
Power for internal circuit  
Ground for internal circuit  
Power for DQ circuit  
Ground for DQ circuit  
No connection  
Commands entered on each positive CK edge; data  
and data mask referenced to both edges of DQS  
Data mask (DM) for write data  
Auto precharge option for each burst access  
2.5 V (SSTL_2 compatible) I/O  
Programmable burst length (BL): 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  
/CS  
/RAS  
/CAS  
/WE  
DM  
CK  
/CK  
CKE  
VREF  
VDD  
VSS  
Auto refresh  
Self refresh  
VDDQ  
VSSQ  
NC  
Document No. E0237E30 (Ver. 3.0)  
Date Published August 2002 (K) Japan  
URL: http://www.elpida.com  
Elpida Memory, Inc. 2002  

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