eorex
Preliminary
EM42AM1684RBA
Burst Type (A3)
Burst Length
2
A2
X
X
X
X
X
X
0
A1
A0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
Sequential Addressing
Interleave Addressing
X
X
0
0
1
1
0
0
1
1
0
0
1
1
0 1
0 1
1 0
1 0
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
4
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
0
0
0
8
1
1
1
1
*Page length is a function of I/O organization and column addressing
DLL Enable / Disable
The DLL must be enabled for normal operation. DLL enable is required during power-up initialization and
upon returning to normal operation after having disable the DLL for the purpose of debug or evaluation
( upon existing Self Refresh Mode, the DLL is enable automatically. ) Any time the DLL is enabled, 200
clock cycles must occur before a READ command can be issued.
Output Drive Strength
The normal drive strength got all outputs is specified to be SSTL-2, Class II. Some vendors might also
support a weak drive strength option, intended for lighter load and/or point to point environments.
Jul. 2006
www.eorex.com
17/19
EOREX [ EOREX CORPORATION ]
