1Gb: x4, x8, x16 DDR3 SDRAM
Speed Bin Tables
Table 53: DDR3-1600 Speed Bins
DDR3-1600 Speed Bin
-1251
CL-tRCD-tRP
11-11-11
Parameter
Symbol
tAA
tRCD
tRP
tRC
tRAS
Min
13.75
13.75
13.75
48.75
35
Max
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CK
CK
Notes
Internal READ command to first data
ACTIVATE to internal READ or WRITE delay time
PRECHARGE command period
ACTIVATE-to-ACTIVATE or REFRESH command period
ACTIVATE-to-PRECHARGE command period
–
–
–
–
9 x tREFI
3.3
2
3
4
3
4
4
4
3
4
4
4
3
4
4
4
3
4
4
3
4
4
3
CL = 5
CWL = 5
CWL = 6, 7, 8
CWL = 5
CWL = 6
CWL = 7, 8
CWL = 5
CWL = 6
CWL = 7
CWL = 8
CWL = 5
CWL = 6
CWL = 7
CWL = 8
CWL = 5, 6
CWL = 7
CWL = 8
CWL = 5, 6
CWL = 7
CWL = 8
CWL = 5, 6, 7
CWL = 8
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
tCK (AVG)
3.0
Reserved
CL = 6
2.5
3.3
Reserved
Reserved
Reserved
CL = 7
CL = 8
1.875
1.875
<2.5
<2.5
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
CL = 9
1.5
1.5
<1.875
<1.875
<1.5
Reserved
Reserved
CL = 10
CL = 11
Reserved
Reserved
1.25
Supported CL settings
Supported CWL settings
5, 6, 7, 8, 9, 10, 11
5, 6, 7, 8
1. The -125 speed grade is backward compatible with 1333, CL = 9 (-15E) and 1066, CL = 7
(-187E).
Notes:
2. tREFI depends on TOPER
.
3. The CL and CWL settings result in tCK requirements. When making a selection of tCK,
both CL and CWL requirement settings need to be fulfilled.
4. Reserved settings are not allowed.
PDF: 09005aef826aa906
1Gb_DDR3_SDRAM.pdf - Rev. L 03/13 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
76
2006 Micron Technology, Inc. All rights reserved.