W981216 WINBOND [Winbond], W981216 Datasheet - Page 12

• Manufacturer Part Number: W981216
• Description: 2M x 16 bit x 4 Banks SDRAM
• Manufacturer: WINBOND [Winbond]

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Revision 1.0
Addressing Sequence of Sequential Mode
Addressing Sequence of Interleave Mode
device. The disturb address is varied by the Burst Length as shown in Table 2.
sequence shown in Table 3.
A column access is performed by increasing the address from the column address which is input to the
A column access is started in the input column address and is performed by inverting the address bit in the
DATA
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
Access Address
Table 2 Address Sequence of Sequential Mode
Table 3 Address Sequence of Interleave Mode
n + 1
n + 2
n + 3
n + 4
n + 5
n + 6
n + 7
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
n
Access Address
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BL= 2 (disturb address is A0)
BL= 4 (disturb addresses are A0 and A1)
BL= 8 (disturb addresses are A0, A1 and A2)
2M x 16 bit x 4 Banks SDRAM
Burst Length
No address carry from A0 to A1
No address carry from A1 to A2
No address carry from A2 to A3
Publication Release Date: March, 1999
Burst Length
BL = 4
BL = 8
BL = 2