Samsung M391B5773DH0, M391B5273DH0 specifications DDR3-1066 Speed Bins

Unbuffered DIMM

datasheet

Rev. 1.0

DDR3L SDRAM

[ Table 18 ] DDR3-1066 Speed Bins

Speed			DDR3-1066
CL-nRCD-nRP			7 - 7 - 7		Units	NOTE
Parameter		Symbol	min	max
Internal read command to first data		tAA	13.125	20	ns
ACT to internal read or write delay time		tRCD	13.125	-	ns
PRE command period		tRP	13.125	-	ns
ACT to ACT or REF command period		tRC	50.625	-	ns
ACT to PRE command period		tRAS	37.5	9*tREFI	ns
CL = 6	CWL = 5	tCK(AVG)	2.5	3.3	ns	1,2,3,5
	CWL = 6	tCK(AVG)	Reserved		ns	1,2,3,4
CL = 7	CWL = 5	tCK(AVG)	Reserved		ns	4
	CWL = 6	tCK(AVG)	1.875	<2.5	ns	1,2,3,4,8
CL = 8	CWL = 5	tCK(AVG)	Reserved		ns	4
	CWL = 6	tCK(AVG)	1.875	<2.5	ns	1,2,3
Supported CL Settings			6,7,8		nCK
Supported CWL Settings			5,6		nCK
[ Table 19 ] DDR3-1333 Speed Bins
Speed			DDR3-1333
CL-nRCD-nRP			9 -9 - 9		Units	NOTE
Parameter		Symbol	min	max
Internal read command to first data		tAA	13.5 (13.125)8	20	ns
ACT to internal read or write delay time		tRCD	13.5 (13.125)8	-	ns
PRE command period		tRP	13.5 (13.125)8	-	ns
ACT to ACT or REF command period		tRC	49.5 (49.125)8	-	ns
ACT to PRE command period		tRAS	36	9*tREFI	ns
	CWL = 5	tCK(AVG)	2.5	3.3	ns	1,2,3,6
CL = 6	CWL = 6	tCK(AVG)	Reserved		ns	1,2,3,4,6
	CWL = 7	tCK(AVG)	Reserved		ns	4
	CWL = 5	tCK(AVG)	Reserved		ns	4
CL = 7	CWL = 6	tCK(AVG)	1.875	<2.5	ns	1,2,3,4,6
	CWL = 7	tCK(AVG)	Reserved		ns	1,2,3,4
	CWL = 5	tCK(AVG)	Reserved		ns	4
CL = 8	CWL = 6	tCK(AVG)	1.875	<2.5	ns	1,2,3,6
	CWL = 7	tCK(AVG)	Reserved		ns	1,2,3,4
CL = 9	CWL = 5,6	tCK(AVG)	Reserved		ns	4
	CWL = 7	tCK(AVG)	1.5	<1.875	ns	1,2,3,4,8
CL = 10	CWL = 5,6	tCK(AVG)	Reserved		ns	4
	CWL = 7	tCK(AVG)	Reserved		ns	1,2,3
Supported CL Settings			6,7,8,9		nCK
Supported CWL Settings			5,6,7		nCK

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