E1750E31 Datasheet, PDF (23/32 Pages) Elpida Memory – 2G bits DDR3L SDRAM

2.3 Standard Speed Bins
EDJ2108EEBG, EDJ2116EEBG
Table 19: DDR3-800 Speed Bins
Speed Bin
CL-tRCD-tRP
Symbol
/CAS write latency
tAA
tRCD
tRP
tRC
tRAS
tCK(avg) @CL=5
CWL = 5
tCK(avg) @CL=6
CWL = 5
Supported CL settings
Supported CWL settings
DDR3-800E
6-6-6
min
15
15
15
52.5
37.5
3.0
2.5
max
20
⎯
⎯
⎯
9 × tREFI
3.3
3.3
5, 6
5
Table 20: DDR3-1066 Speed Bins
Speed Bin
CL-tRCD-tRP
Symbol
/CAS write latency
tAA
tRCD
tRP
tRC
tRAS
tCK(avg) @CL=5
CWL = 5
CWL = 6
tCK(avg) @CL=6
CWL = 5
CWL = 6
tCK(avg) @CL=7
CWL = 5
CWL = 6
tCK(avg) @CL=8
CWL = 5
CWL = 6
Supported CL settings
Supported CWL settings
DDR3-1066F
7-7-7
min
13.125
13.125
13.125
50.625
37.5
3.0
Reserved
2.5
Reserved
Reserved
1.875
Reserved
1.875
max
20
⎯
⎯
⎯
9 × tREFI
3.3
Reserved
3.3
Reserved
Reserved
< 2.5
Reserved
< 2.5
5, 6, 7, 8
5, 6
Unit
Notes
ns
10
ns
10
ns
10
ns
10
ns
9
ns
1, 2, 3, 11
ns
1, 2, 3, 11
nCK
nCK
Unit
Notes
ns
10
ns
10
ns
10
ns
10
ns
9
ns
1, 2, 3, 4, 5, 11
ns
4
ns
1, 2, 3, 5
ns
4
ns
4
ns
1, 2, 3, 4
ns
4
ns
1, 2, 3
nCK
nCK
Data Sheet E1750E31 (Ver. 3.1)
23