EDJ1108BABG, EDJ1116BABG
DDR3 SDRAM Mode Register 0 [MR0] ...................................................................................................... 75
DDR3 SDRAM Mode Register 1 [MR1] ...................................................................................................... 76
DDR3 SDRAM Mode Register 2 [MR2] ...................................................................................................... 77
DDR3 SDRAM Mode Register 3 [MR3] ...................................................................................................... 78
Burst Length (MR0) .................................................................................................................................... 79
Burst Type (MR0) ....................................................................................................................................... 79
DLL Enable (MR1)...................................................................................................................................... 80
DLL-off Mode.............................................................................................................................................. 80
DLL on/off switching procedure .................................................................................................................. 81
Additive Latency (MR1)............................................................................................................................... 83
Write Leveling (MR1) .................................................................................................................................. 84
TDQS, /TDQS function (MR1) .................................................................................................................... 87
Extended Temperature Usage (MR2)......................................................................................................... 88
Multi Purpose Register (MR3)..................................................................................................................... 90
Operation of the DDR3 SDRAM..................................................................................................................98
Read Timing Definition................................................................................................................................ 98
Read Operation ........................................................................................................................................ 102
Write Timing Definition.............................................................................................................................. 109
Write Operation......................................................................................................................................... 110
Write Timing Violations ............................................................................................................................. 116
Write Data Mask ....................................................................................................................................... 117
Precharge ................................................................................................................................................. 118
Auto Precharge Operation ........................................................................................................................ 119
Auto-Refresh............................................................................................................................................. 120
Self-Refresh.............................................................................................................................................. 121
Power-Down Mode ................................................................................................................................... 122
Input Clock Frequency Change during Precharge Power-Down............................................................... 129
On-Die Termination (ODT)........................................................................................................................ 130
ZQ Calibration........................................................................................................................................... 142
Package Drawing ......................................................................................................................................144
Recommended Soldering Conditions........................................................................................................146
Data Sheet E1248E40 (Ver. 4.0)
6
ELPIDA [ ELPIDA MEMORY ]
