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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Samsung M391B5773DH0, M391B5273DH0 specifications Table Of Contents