E1729E30 Datasheet, PDF (23/33 Pages) Elpida Memory – 1G bits DDR3 SDRAM

2.3 Standard Speed Bins
EDJ1108DJBG, EDJ1116DJBG
Table 18: 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 19: 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
11
ns
11
ns
11
ns
11
ns
10
ns
1, 2, 3, 12
ns
1, 2, 3, 12
nCK
nCK
Unit
Notes
ns
11
ns
11
ns
11
ns
11
ns
10
ns
1, 2, 3, 4, 5, 12
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 E1729E30 (Ver. 3.0)
23