7. Function Block Diagram: ............................................................................................................................................... 8
7.1 2GB, 256Mx64 Module (Populated as 1 rank of x8 DDR3 SDRAMs) ..................................................................... 8
7.2 4GB, 512Mx64 Module (Populated as 2 ranks of x8 DDR3 SDRAMs) ................................................................... 9
8. Absolute Maximum Ratings .......................................................................................................................................... 10
8.1 Absolute Maximum DC Ratings............................................................................................................................... 10
8.2 DRAM Component Operating Temperature Range ................................................................................................ 10
9. AC & DC Operating Conditions..................................................................................................................................... 10
9.1 Recommended DC Operating Conditions .............................................................................................................. 10
10. AC & DC Input Measurement Levels .......................................................................................................................... 11
10.1 AC & DC Logic Input Levels for Single-ended Signals .......................................................................................... 11
10.3 AC and DC Logic Input Levels for Differential Signals .......................................................................................... 14
10.3.2. Differential Swing Requirement for Clock (CK - CK) and Strobe (DQS - DQS) ............................................. 14
10.3.3. Single-ended Requirements for Differential Signals ...................................................................................... 16
10.3.4. Differential Input Cross Point Voltage ............................................................................................................ 17
10.4 Slew Rate Definition for Single Ended Input Signals ............................................................................................. 18
10.5 Slew rate definition for Differential Input Signals ................................................................................................... 18
11. AC & DC Output Measurement Levels ....................................................................................................................... 18
11.1 Single Ended AC and DC Output Levels............................................................................................................... 18
11.2 Differential AC and DC Output Levels ................................................................................................................... 18
15. Electrical Characteristics and AC timing ..................................................................................................................... 25
15.1 Refresh Parameters by Device Density................................................................................................................. 25
15.2 Speed Bins and CL, tRCD, tRP, tRC and tRAS for Corresponding Bin ................................................................ 25
15.3 Speed Bins and CL, tRCD, tRP, tRC and tRAS for Corresponding Bin ................................................................ 25
15.3.1. Speed Bin Table Notes .................................................................................................................................. 29
16. Timing Parameters by Speed Grade .......................................................................................................................... 30