Datasheet

Rev. 1.1 / May. 2013 50
DDR3-1866 Speed Bins
For specific Notes See "Speed Bin Table Notes" on page 51.
Speed Bin DDR3-1866M
Unit Note
CL - nRCD - nRP 13-13-13
Parameter Symbol min max
Internal read command
to first data
t
AA
13.91
(13.125)
5,11
20 ns
ACT to internal read or
write delay time
t
RCD
13.91
(13.125)
5,11
—ns
PRE command period
t
RP
13.91
(13.125)
5,11
—ns
ACT to PRE command
period
t
RAS
34 9 * tREFI ns
ACT to ACT or PRE
command period
t
RC
47.91
(47.125)
5,11
-ns
CL = 6
CWL = 5
t
CK(AVG)
2.5 3.3 ns 1,2,3,9
CWL = 6
t
CK(AVG)
Reserved ns 1,2,3,4,9
CWL = 7,8,9
t
CK(AVG)
Reserved ns 4
CL = 7
CWL = 5
t
CK(AVG)
Reserved ns 4
CWL = 6
t
CK(AVG)
1.875 < 2.5 ns 1,2,3,4,9
CWL = 7,8,9
t
CK(AVG)
Reserved ns 4
CL = 8
CWL = 5
t
CK(AVG)
Reserved ns 4
CWL = 6
t
CK(AVG)
1.875 < 2.5 ns 1,2,3,9
CWL = 7
t
CK(AVG)
Reserved ns 1,2,3,4,9
CWL = 8,9
t
CK(AVG)
Reserved ns 4
CL = 9
CWL = 5, 6
t
CK(AVG)
Reserved ns 4
CWL = 7
t
CK(AVG)
1.5 <1.875 ns 1,2,3,4,9
CWL = 8
t
CK(AVG)
Reserved ns 1,2,3,4,9
CWL = 9
t
CK(AVG)
Reserved ns 4
CL = 10
CWL = 5, 6
t
CK(AVG)
Reserved ns 4
CWL = 7
t
CK(AVG)
1.5 <1.875 ns 1,2,3,9
CWL = 8
t
CK(AVG)
Reserved ns 1,2,3,4,9
CL = 11
CWL = 5,6,7
t
CK(AVG)
Reserved ns 4
CWL = 8
t
CK(AVG)
1.25 <1.5 ns 1,2,3,4,9
CWL = 9
t
CK(AVG)
Reserved ns 1,2,3,4
CL = 12
CWL = 5,6,7,8
t
CK(AVG)
Reserved ns 4
CWL = 9
t
CK(AVG)
Reserved ns 1,2,3,4
CL = 13
CWL = 5,6,7,8
t
CK(AVG)
Reserved ns 4
CWL = 9
t
CK(AVG)
1.07 <1.25 ns 1, 2, 3
Supported CL Settings 6, 7, 8, 9, 10, 11, 13
n
CK
Supported CWL Settings 5, 6, 7, 8, 9
n
CK