AMS73CAG01808RA
DDR3-1066 Speed Bins
Speed Bin
CL-nRCD-nRP
Parameter
-H7 (DDR3-1066)
7-7-7
Unit
Notes
Symbol
tAA
Min
Max
Internal read command to first data
Active to read or write delay time
Precharge command period
13.125
13.125
13.125
50.625
37.5
20
ns
ns
9
tRCD
-
9
tRP
-
ns
9
9
Active to active/auto-refresh command time
Active to precharge command period
tRC
-
ns
tRAS
9 * tREFI
3.3
ns
8
Average Clock
Cycle Time
CL = 6
CL = 7
CL = 8
CWL = 5
CWL = 6
CWL = 5
CWL = 6
CWL = 5
CWL = 6
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
2.5
ns
1,2,3,6
1,2,3,4
4
Reserved
Reserved
1.875
Reserved
Reserved
< 2.5
ns
ns
ns
1,2,3,4
4
Reserved
1.875
Reserved
< 2.5
ns
ns
1,2,3
Supported CL setting
Supported CWL setting
6, 7, 8
5, 6
nCK
nCK
DDR3-1333 Speed Bins
Speed Bin
CL-nRCD-nRP
Parameter
-I9 (DDR3-1333)
9-9-9
Unit
Notes
Symbol
tAA
Min
Max
20
Internal read command to first data
Active to read or write delay time
Precharge command period
13.125
13.125
13.125
49.125
36
ns
ns
9
tRCD
-
9
tRP
-
ns
9
Active to active/auto-refresh command time
Active to precharge command period
tRC
-
ns
9
8
tRAS
9 * tREFI
3.3
ns
Average Clock
Cycle Time
CL = 6
CL = 7
CL = 8
CWL = 5
CWL = 6
CWL = 7
CWL = 5
CWL = 6
CWL = 7
CWL = 5
CWL = 6
CWL = 7
CWL = 5, 6
CWL = 7
CWL = 5, 6
CWL = 7
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
tCK(avg)
2.5
ns
1,2,3,7
1,2,3,4,7
4
Reserved
Reserved
Reserved
1.875
Reserved
Reserved
Reserved
< 2.5
ns
ns
ns
4
ns
1,2,3,4,7
1,2,3,4
4
Reserved
Reserved
1.875
Reserved
Reserved
< 2.5
ns
ns
ns
1,2,3,7
1,2,3,4
4
Reserved
Reserved
1.5
Reserved
Reserved
< 1.875
Reserved
< 1.875
ns
CL = 9
ns
ns
1,2,3,4
4
CL = 10
Reserved
1.5
ns
ns
1,2,3
Supported CL setting
Supported CWL setting
6, 7, 8, 9, 10
5, 6, 7
nCK
nCK
AMS73CAG01808RA Rev. 1.0 December 2010
22
AMS [ Advanced Monolithic Systems Ltd ]
