w942508ch Winbond Electronics Corp America, w942508ch Datasheet - Page 27

• Manufacturer Part Number: w942508ch
• Description: 8m X 4 Banks X 8 Bit Ddr Sdram
• Manufacturer: Winbond Electronics Corp America

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Address Sequence of Sequential Mode
Addressing Sequence of Interleave Mode
A column access is performed by incrementing the column address input to the device. The
address is varied by the Burst Length as the following.
A Column access is started from the inputted column address and is performed by
interleaving the address bits in the sequence shown as the following.
Data 0
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
DATA
Data 0
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
DATA
ACCESS ADDRESS
9.9.1.1
n + 1
n + 2
n + 3
n + 4
n + 5
n + 6
n + 7
n
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
Addressing Sequence of Sequential Mode
Address Sequence for Interleave Mode
ACCESS ADDRESS
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8 words (address bits A2, A1 and A0)
4 words (address bit A0, A1)
2 words (address bits is A0)
Not carried from A1 to A2
Not carried from A2 to A3
not carried from A0 to A1
BURST LENGTH
Publication Release Date: May 21, 2003
BURST LENGTH
2 words
4 words
8 words
W942508CH
Revision A3