參數(shù)資料
型號： EDE2104ABSE
廠商： Elpida Memory, Inc.
英文描述： 2G bits DDR2 SDRAM
中文描述： 第二代位DDR2 SDRAM內(nèi)存
文件頁數(shù)： 54/81頁
文件大?。?/td> 604K
代理商： EDE2104ABSE
EDE2104ABSE, EDE2108ABSE
Preliminary Data Sheet E1196E10 (Ver. 1.0)
54
Burst Mode Operation
Burst mode operation is used to provide a constant flow of data to memory locations (write cycle), or from memory
locations (read cycle). The parameters that define how the burst mode will operate are burst sequence and burst
length. DDR2 SDRAM supports 4 bits burst and 8bits burst modes only. For 8 bits burst mode, full interleave
address ordering is supported, however, sequential address ordering is nibble based for ease of implementation.
The burst type, either sequential or interleaved, is programmable and defined by the address bit 3 (A3) of the MRS,
which is similar to the DDR-I SDRAM operation. Seamless burst read or write operations are supported.
Unlike DDR-I devices, interruption of a burst read or writes operation is limited to ready by Read or Write by Write at
the boundary of Burst 4. Therefore the burst stop command is not supported on DDR2 SDRAM devices.
[Burst Length and Sequence]
Burst length
Starting address (A2, A1, A0) Sequential addressing (decimal)
Interleave addressing (decimal)
000
0, 1, 2, 3
0, 1, 2, 3
001
1, 2, 3, 0
1, 0, 3, 2
010
2, 3, 0, 1
2, 3, 0, 1
4
011
3, 0, 1, 2
3, 2, 1, 0
000
0, 1, 2, 3, 4, 5, 6, 7
0, 1, 2, 3, 4, 5, 6, 7
001
1, 2, 3, 0, 5, 6, 7, 4
1, 0, 3, 2, 5, 4, 7, 6
010
2, 3, 0, 1, 6, 7, 4, 5
2, 3, 0, 1, 6, 7, 4, 5
011
3, 0, 1, 2, 7, 4, 5, 6
3, 2, 1, 0, 7, 6, 5, 4
100
4, 5, 6, 7, 0, 1, 2, 3
4, 5, 6, 7, 0, 1, 2, 3
101
5, 6, 7, 4, 1, 2, 3, 0
5, 4, 7, 6, 1, 0, 3, 2
110
6, 7, 4, 5, 2, 3, 0, 1
6, 7, 4, 5, 2, 3, 0, 1
8
111
7, 4, 5, 6, 3, 0, 1, 2
7, 6, 5, 4, 3, 2, 1, 0
Note: Page length is a function of I/O organization and column addressing
64M bits
×
4 organization (CA0 to CA9, CA11); Page Length = 2048 bits
32M bits
×
8 organization (CA0 to CA9); Page Length = 1024 bits
相關(guān)PDF資料
PDF描述
EDE2104ABSE-5C-E 2G bits DDR2 SDRAM
EDE2104ABSE-6E-E 2G bits DDR2 SDRAM
EDE2104ABSE-8G-E 2G bits DDR2 SDRAM
EDE2108ABSE 2G bits DDR2 SDRAM
EDE2108ABSE-5C-E 2G bits DDR2 SDRAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EDE2104ABSE-5C-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:2G bits DDR2 SDRAM
EDE2104ABSE-6E-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:2G bits DDR2 SDRAM
EDE2104ABSE-8G-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:2G bits DDR2 SDRAM
EDE2108ABSE 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:2G bits DDR2 SDRAM
EDE2108ABSE-5C-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:2G bits DDR2 SDRAM
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