|
HYB39SC256 Datasheet, PDF (12/24 Pages) Qimonda AG – 256-MBit Synchronous DRAM | |||
|
◁ |
Internet Data Sheet
HY[B/I]39SC256[80/16]0F[E/F]
256-MBit Synchronous DRAM
Burst Length Starting Column Address
A2
A1
A0
2
0
1
4
0
0
0
1
1
0
1
1
8
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
FullPage
n
TABLE 6
Burst Length and Sequence
Order of Accesses Within a Burst
Type=Sequential
0â1
1â0
0â1â2â3
1â2â3â0
2â3â0â1
3â0â1â2
0â1â2â3â4â5â6â7
1â2â3â4â5â6â7â0
2â3â4â5â6â7â0â1
3â4â5â6â7â0â1â2
4â5â6â7â0â1â2â3
5â6â7â0â1â2â3â4
6â7â0â1â2â3â4â5
7â0â1â2â3â4â5â6
Cn, Cn+1, Cn+2 ....
Type=Interleaved
0â1
1â0
0â1â2â3
1â0â3â2
2â3â0â1
3â2â1â0
0â1â2â3â4â5â6â7
1â0â3â2â5â4â7â6
2â3â0â1â6â7â4â5
3â2â1â0â7â6â5â4
4â5â6â7â0â1â2â3
5â4â7â6â1â0â3â2
6â7â4â5â2â3â0â1
7â6â5â4â3â2â1â0
Not supported
Notes
1. For a burst length of two, A1-Ai selects the two-data-element block; A0 selects the first access within the block.
2. For a burst length of four, A2-Ai selects the four-data-element block; A0-A1 selects the first access within the block.
3. For a burst length of eight, A3-Ai selects the eight-data- element block; A0-A2 selects the first access with in the block.
4. Whenever a boundary of the block is reached within a given sequence above, the following access wraps within the block.
Rev. 1.25, 2007-06
12
03062006-NMGU-CQ9D
|
▷ |