EM42BM3284LBA_15 Datasheet, PDF (20/24 Pages) Eorex Corporation – Double DATA RATE SDRAM

eorex
EM42BM3284LBA
Burst Type (A3)
Burst Length A3 A2 A1 A0
Sequential Addressing
XXX0
01
2
XXX1
10
XX0 0
0123
XX0 1
4
XX1 0
1230
2301
XX1 1
3012
X000
01234567
X001
12345670
X010
23456701
X011
8
X100
34567012
45670123
X101
56701234
X110
67012345
X111
70123456
0
0
0
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0
0
0
1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0
0
0
1
0
2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1
0
0
1
1
3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2
0
1
0
0
4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3
0
1
0
1
5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 4
0
1
1
0
6 7 8 9 10 11 12 13 14 15 0 1 2 3 4 5
0
1
1
1
7 8 9 10 11 12 13 14 15 0 1 2 3 4 5 6
16
1
0
0
0
8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7
1
0
0
1
9 10 11 12 13 14 15 0 1 2 3 4 5 6 7 8
1
0
1
0
10 11 12 13 14 15 0 1 2 3 4 5 6 7 8 9
1
0
1
1
11 12 13 14 15 0 1 2 3 4 5 6 7 8 9 10
1
1
0
0
12 13 14 15 0 1 2 3 4 5 6 7 8 9 10 11
1
1
0
1
13 14 15 0 1 2 3 4 5 6 7 8 9 10 11 12
1
1
1
0
14 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13
1
1
1
1
15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
* Page length is a function of I/O organization and column addressing
Interleave Addressing
01
10
0123
1032
2301
3210
01234567
10325476
23016745
32107654
45670123
54761032
67452301
76543210
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 0 3 2 5 4 7 6 9 8 11 10 13 12 15 14
2 3 0 1 6 7 4 5 10 11 8 9 14 15 12 13
3 2 1 0 7 6 5 4 11 10 9 8 15 14 13 12
4 5 6 7 0 1 2 3 12 13 14 15 8 9 10 11
5 4 7 6 1 0 3 2 13 12 15 14 9 8 11 10
6 7 4 5 2 3 0 1 14 15 12 13 10 11 8 9
7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8
8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7
9 8 11 10 13 12 15 14 1 0 3 2 5 4 7 6
10 11 8 9 14 15 12 13 2 3 0 1 6 7 4 5
11 10 9 8 15 14 13 12 3 2 1 0 7 6 5 4
12 13 14 15 8 9 10 11 4 5 6 7 0 1 2 3
13 12 15 14 9 8 11 10 5 4 7 6 1 0 3 2
14 15 12 13 10 11 8 9 6 7 4 5 2 3 0 1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Feb. 2009
20/24
www.eorex.com