Table Of Contents | Samsung M391B5773DH0, M391B5273DH0 specs

Unbuffered DIMM

datasheet

Rev. 1.0

DDR3L SDRAM

Table Of Contents
240pin Unbuffered DIMM based on 2Gb D-die
1. DDR3L Unbuffered DIMM Ordering Information		4
2. Key Features		4
3. Address Configuration		4
4. x72 DIMM Pin Configurations (Front side/Back side)		5
5. Pin Description		6
6. SPD and Thermal Sensor for ECC UDIMMs		6
7. Input/Output Functional Description		7
7.1 Address Mirroring Feature		8
7.1.1. DRAM Pin Wiring Mirroring		8
8. Function Block Diagram:		9
8.1 2GB, 256Mx72 ECC Module (Populated as 1 rank of x8 DDR3 SDRAMs)		9
8.2 4GB, 512Mx72 ECC Module (Populated as 2 ranks of x8 DDR3 SDRAMs)		10
9. Absolute Maximum Ratings		11
9.1 Absolute Maximum DC Ratings		11
9.2 DRAM Component Operating Temperature Range		11
10. AC & DC Operating Conditions		11
10.1	Recommended DC Operating Conditions (SSTL-15)	11
11. AC & DC Input Measurement Levels		12
11.1	AC & DC Logic Input Levels for Single-ended Signals	12
11.2	VREF Tolerances	14
11.3	AC and DC Logic Input Levels for Differential Signals	15
11.3.1. Differential Signals Definition		15
11.3.2. Differential Swing Requirement for Clock (CK - CK) and Strobe (DQS - DQS)		15
11.3.3. Single-ended Requirements for Differential Signals		17
11.3.4. Differential Input Cross Point Voltage		18
11.4	Slew Rate Definition for Single Ended Input Signals	19
11.5	Slew rate definition for Differential Input Signals	19
12. AC & DC Output Measurement Levels		19
12.1	Single Ended AC and DC Output Levels	19
12.2	Differential AC and DC Output Levels	19
12.3	Single-ended Output Slew Rate	20
12.4	Differential Output Slew Rate	21
13. IDD specification definition		22
14. IDD SPEC Table		24
15. Input/Output Capacitance		25
16. Electrical Characteristics and AC timing		26
16.1	Refresh Parameters by Device Density	26
16.2	Speed Bins and CL, tRCD, tRP, tRC and tRAS for Corresponding Bin	26
16.3	Speed Bins and CL, tRCD, tRP, tRC and tRAS for corresponding Bin	26
16.3.1. Speed Bin Table Notes		28
17. Timing Parameters by Speed Grade		30
17.1	Jitter Notes	33
17.2	Timing Parameter Notes	34
18. Physical Dimensions		35
18.1	256Mbx8 based 256Mx72 Module (1 Rank) - M391B5773DH0	35
18.2	256Mbx8 based 512Mx72 Module (2 Ranks) - M391B5273DH0	36

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