VG36644041DT / VG36648041DT / VG36641641DT
CMOS Synchronous Dynamic RAM
VIS
5.1 Burst Length and Sequence
(Burst of Two)
Starting Address
(column address A0, binary)
Sequential Addressing
Sequence (decimal)
Interleave Addressing Sequence
(decimal)
0
1
0, 1
1, 0
0, 1
1, 0
(Burst of Four)
Starting Address
(column address A1 - A0, binary)
Sequential Addressing
Sequence (decimal)
Interleave Addressing Sequence (decimal)
00
01
10
11
0, 1, 2, 3
1, 2, 3, 0
2, 3, 0, 1
3, 0, 1, 2
0, 1, 2, 3
1, 0, 3, 2
2, 3, 0, 1
3, 2, 1, 0
(Burst of Eight)
Starting Address
(column address A2 - A0, binary)
Sequential Addressing
Sequence (decimal)
Interleave Addressing Sequence
(decimal)
000
001
010
011
100
101
110
111
0, 1, 2, 3, 4, 5, 6, 7
1, 2, 3, 4, 5, 6, 7, 0
2, 3, 4, 5, 6, 7, 0, 1
3, 4, 5, 6, 7, 0, 1 ,2
4, 5, 6, 7, 0, 1, 2, 3
5, 6 ,7, 0, 1, 2, 3, 4
6, 7 ,0 ,1 ,2 ,3 ,4 ,5
7, 0, 1, 2, 3, 4, 5, 6
0, 1, 2, 3, 4, 5, 6, 7
1, 0, 3, 2, 5, 4, 7, 6
2, 3, 0, 1, 6, 7, 4, 5
3, 2, 1, 0, 7, 6, 5, 4
4, 5, 6, 7, 0, 1, 2, 3
5, 4, 7, 6, 1, 0, 3, 2
6, 7, 4, 5, 2, 3, 0, 1
7, 6, 5, 4, 3, 2, 1, 0
Full page burst is an extension of the above tables of sequential addressing, with the length being 1,024
(for 16Mx4), 512 (for 8M x 8) and 256 (for 4Mx16).
Document :1G5-0177
Rev.2
Page17
VML [ VANGUARD INTERNATIONAL SEMICONDUCTOR ]
