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Unbuffered SODIMM datasheet DDR3 SDRAM
Rev. 1.0
[ Table 16 ] DDR3-1600 Speed Bins
Speed DDR3-1600
Units NOTECL-nRCD-nRP 11-11-11
Parameter Symbol min max
Internal read command to first data tAA
13.75
(13.125)
8
20 ns
ACT to internal read or write delay time tRCD
13.75
(13.125)
8
- ns
PRE command period tRP
13.75
(13.125)
8
- ns
ACT to ACT or REF command period tRC
48.75
(48.125)
8
- ns
ACT to PRE command period tRAS 35 9*tREFI ns
CL = 5
CWL = 5 tCK(AVG) 3.0 3.3 ns 1,2,3,4,7,9,10
CWL = 6,7,8 tCK(AVG) Reserved ns 4
CL = 6
CWL = 5 tCK(AVG) 2.5 3.3 ns 1,2,3,7
CWL = 6 tCK(AVG) Reserved ns 1,2,3,4,7
CWL = 7, 8 tCK(AVG) Reserved ns 4
CL = 7
CWL = 5 tCK(AVG) Reserved ns 4
CWL = 6 tCK(AVG) 1.875 <2.5 ns 1,2,3,4,7
CWL = 7 tCK(AVG) Reserved ns 1,2,3,4,7
CWL = 8 tCK(AVG) Reserved ns 4
CL = 8
CWL = 5 tCK(AVG) Reserved ns 4
CWL = 6 tCK(AVG) 1.875 <2.5 ns 1,2,3,7
CWL = 7 tCK(AVG) Reserved ns 1,2,3,4,7
CWL = 8 tCK(AVG) Reserved ns 1,2,3,4
CL = 9
CWL = 5,6 tCK(AVG) Reserved ns 4
CWL = 7 tCK(AVG) 1.5 <1.875 ns 1,2,3,4,7
CWL = 8 tCK(AVG) Reserved ns 1,2,3,4
CL = 10
CWL = 5,6 tCK(AVG) Reserved ns 4
CWL = 7 tCK(AVG) 1.5 <1.875 ns 1,2,3,7
CWL = 8 tCK(AVG) Reserved ns 1,2,3,4
CL = 11
CWL = 5,6,7 tCK(AVG) Reserved ns 4
CWL = 8 tCK(AVG) 1.25 <1.5 ns 1,2,3,8
Supported CL Settings 5,6,7,8,9,10,11 nCK
Supported CWL Settings 5,6,7,8 nCK