E1750E31 Datasheet, PDF (26/32 Pages) Elpida Memory – 2G bits DDR3L SDRAM

EDJ2108EEBG, EDJ2116EEBG
Table 23: DDR3-1866 Speed Bins
Speed Bin
CL-tRCD-tRP
Symbol
/CAS write latency
tAA
tRCD
tRP
tRC
tRAS
tCK(avg) @CL=5
CWL = 5
CWL = 6, 7, 8, 9
tCK(avg) @CL=6
CWL = 5
CWL = 6
CWL = 7, 8, 9
tCK(avg) @CL=7
CWL = 5
CWL = 6
CWL = 7, 8, 9
tCK(avg) @CL=8
CWL = 5
CWL = 6
CWL = 7
CWL = 8, 9
tCK(avg) @CL=9
CWL = 5, 6
CWL= 7
CWL= 8
CWL= 9
tCK(avg) @CL=10
CWL = 5, 6
CWL= 7
CWL= 8
tCK(avg) @CL=11
CWL = 5, 6, 7
CWL= 8
CWL= 9
tCK(avg) @CL=12
CWL = 5, 6, 7, 8
CWL= 9
tCK(avg) @CL=13
CWL = 5, 6, 7, 8
CWL= 9
Supported CL settings
Supported CWL settings
DDR3-1866M
13-13-13
min
max
13.91
20.0
13.91
⎯
13.91
⎯
47.91
⎯
34.0
9 × tREFI
3.0
3.3
Reserved
Reserved
2.5
3.3
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
1.875
2.5
Reserved
Reserved
Reserved
Reserved
1.875
2.5
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
1.5
1.875
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
1.5
1.875
Reserved
Reserved
Reserved
Reserved
1.25
1.5
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
1.07
1.25
5, 6, 7, 8, 9, 10, 11, 13
5, 6, 7, 8, 9
Unit
Notes
ns
ns
ns
ns
ns
9
ns
1, 2, 3, 8
ns
4
ns
1, 2, 3, 8
ns
4
ns
4
ns
4
ns
1, 2, 3, 8
ns
4
ns
4
ns
1, 2, 3, 8
ns
4
ns
4
ns
4
ns
1, 2, 3, 8
ns
4
ns
4
ns
4
ns
1, 2, 3, 8
ns
4
ns
4
ns
1, 2, 3, 8
ns
4
ns
4
ns
4
ns
4
ns
4
nCK
1, 2, 3, 8
nCK
Data Sheet E1750E31 (Ver. 3.1)
26