1Gb: x4, x8, x16 DDR2 SDRAM
Features
Table 1: Key Timing Parameters
Data Rate (MT/s)
Speed Grade
CL = 3
CL = 4
533
CL = 5
667
800
667
667
667
n/a
CL = 6
800
800
800
n/a
CL = 7
1066
n/a
tRC (ns)
54
-187E
-25E
-25
400
400
400
400
400
400
533
55
533
n/a
55
-3E
667
n/a
54
-3
533
n/a
n/a
55
-37E
533
n/a
n/a
55
Table 2: Addressing
Parameter
256 Meg x 4
128 Meg x 8
64 Meg x 16
Configuration
Refresh count
Row address
Bank address
Column address
32 Meg x 4 x 8 banks
8K
16 Meg x 8 x 8 banks
8K
8 Meg x 16 x 8 banks
8K
A[13:0] (16K)
BA[2:0] (8)
A[13:0] (16K)
BA[2:0] (8)
A[9:0] (1K)
A[12:0] (8K)
BA[2:0] (8)
A[9:0] (1K)
A[11, 9:0] (2K)
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. T 02/10 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2
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