DDR4-3200 Speed Bins and Operations
Speed Bin
DDR4-3200AA
CL-nRCD-nRP
22-22-22
min
Unit
NOTE
Parameter
Symbol
max
Internal read command to
first data
tAA
13.75
18.00
ns
ns
12
12
Internal read command to
first data with read DBI
enabled
tAA(min)
+ 4nCK
tAA_DBI
tAA(max) + 4nCK
ACT to internal read or
write delay time
tRCD
tRP
13.75
13.75
32
-
ns
ns
ns
12
12
12
PRE command period
-
ACT to PRE command
period
tRAS
9 x tREFI
ACT to ACT or REF com-
mand period
tRC
45.75
-
ns
12
Read
Normal
DBI
CL = 9 CL = 11 tCK(AVG)
CL = 10 CL = 12 tCK(AVG)
Reserved
Reserved
Reserved
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
nCK
1,2,3,4,11
1,2,3,4,11
1,2,3,4
CWL =
9
CWL = CL = 10 CL = 12 tCK(AVG)
9,11
CL = 11 CL = 13 tCK(AVG)
CL = 12 CL = 14 tCK(AVG)
1.25
1.25
<1.5
<1.5
1,2,3,4,10
1,2,3,10
1,2,3,4
CWL = CL = 12 CL = 14 tCK(AVG)
Reserved
Reserved
10,12
CL = 13 CL = 15 tCK(AVG)
CL = 14 CL = 16 tCK(AVG)
1.071
1.071
<1.25
<1.25
1,2,3,4,10
1,2,3,10
1,2,3,4
CWL = CL = 14 CL = 17 tCK(AVG)
11,14
CL = 15 CL = 18 tCK(AVG)
CL = 16 CL = 19 tCK(AVG)
0.937
0.937
<1.071
<1.071
1,2,3,4,10
1,2,3,10
1,2,3,4
CWL = CL = 15 CL = 18 tCK(AVG)
Reserved
Reserved
12.16
CL = 16 CL = 19 tCK(AVG)
CL = 17 CL = 20 tCK(AVG)
CL = 18 CL = 21 tCK(AVG)
1,2,3,4,10
1,2,3,4,10
1,2,3,10
1,2,3,4
0.833
0.833
<0.937
<0.937
CWL = CL = 17 CL = 20 tCK(AVG)
Reserved
Reserved
14,18
CL = 18 CL = 21 tCK(AVG)
CL = 19 CL = 22 tCK(AVG)
CL = 20 CL = 23 tCK(AVG)
1,2,3,4,10
1,2,3,4,10
1,2,3,10
1,2,3,4
0.75
0.75
<0.833
<0.833
CWL = CL = 20 CL = 24 tCK(AVG)
Reserved
16,20
CL = 22 CL = 26 tCK(AVG)
CL = 24 CL = 28 tCK(AVG)
Supported CL Settings
0.625
0.625
<0.75
<0.75
1,2,3,4
1,2,3
10,11,12,13,14,15, 16,17,18,19,20,22,
24
13
Supported CL Settings with read DBI
Supported CWL Settings
12,13,14,15,16,18, 19,20,21,22,23,24,
26, 28
nCK
nCK
9,10,11,12,14,16,
18,20
Rev. 1.0 / Jan.2019
41