Datasheet

DTM68105B
8GB - 288-Pin 2Rx8 Registered ECC DDR4 DIMM
Document 06394, Revision A, 24-Sep-14, Dataram Corporation © 2014 Page 2
SpeedBinTable
SpeedBin DDR4‐2133P DDR4‐2133R
UnitNOTE
CL‐nRCD‐nRP 15‐15‐15 16‐16‐16
Parameter Symbol min max min max
Internalreadcommandtofirstdata tAA
14.06
10

(13.50)
5,8

18.00 15.00 18.00 ns

Internalreadcommandtofirstdata
withreadDBIenabled
tAA_DBI TBD TBD TBD TBD ns

ACTtointernalreadorwritedelay
time
tRCD
14.06
(13.50)
5,8

‐ 15.00 ‐ ns

PREcommandperiod tRP
14.06
(13.50)
5,8
‐ 15.00 ‐ ns

ACTtoPREcommandperiod tRAS 33
9x
tREFI
33
9x
tREFI
ns

ACTtoACTorREFcommandperiod tRC
47.06
(46.50)
5,8

‐ 48.00 ‐ ns


Normal ReadDBI
CWL=9
CL=9
CL=11
(Optional)
5

tCK
(AVG)
 1.5
1.6 Reserved ns
1,2,3,4,7,10
tCK
(AVG)
 (Optional)
5,8

CL=10 CL=12 tCK
(AVG)
Reserved 1.5 1.6 ns1,2,3,7
CWL=9,11CL=11 CL=13
tCK
(AVG)
 1.25 <1.5
Reserved ns1,2,3,4,6
tCK
(AVG)
 (Optional)
5,8

CL=12 CL=14 tCK
(AVG)
 1.25 <1.5 1.25 <1.5 ns1,2,3,6
CWL=
10,12
CL=13 CL=15
tCK
(AVG)
 1.071 <1.25
Reserved ns1,2,3,4,6
tCK
(AVG)
(Optional)
5,8

CL=14 CL=16 tCK
(AVG)
 1.071 <1.25 1.071 <1.25 ns1,2,3,6
CWL=
11,14
CL=14 CL=TBD tCK
(AVG)
Reserved Reserved ns1,2,3,4
CL=15 CL=TBD tCK
(AVG)
 0.938 <1.071Reserved ns1,2,3,4
CL=16 CL=TBD tCK
(AVG)
 0.938 <1.071 0.938 <1.071 ns1,2,3
SupportedCLSettings
(9),(11),12,(13),14,15
,16
10,12,14,16 nCK9,10
SupportedCLSettingswithreadDBI TBD TBD nCK
SupportedCWLSettings 9,10,11,12,14 9,10,11,12,14 nCK








