EDJ8232B5MB datasheet(6/142 Pages) ELPIDA

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EDJ8232B5MB

Data Sheet E1825E30 (Ver. 3.0)

DDR3 SDRAM Mode Register 2 [MR2] ..................................................................................................... 72

DDR3 SDRAM Mode Register 3 [MR3] ..................................................................................................... 73

Burst Length (MR0) ................................................................................................................................... 74

Burst Type (MR0) ...................................................................................................................................... 74

DLL Enable (MR1) ..................................................................................................................................... 75

DLL-off Mode ............................................................................................................................................. 75

DLL on/off switching procedure ................................................................................................................. 76

Additive Latency (MR1).............................................................................................................................. 78

Write Leveling (MR1) ................................................................................................................................. 79

Extended Temperature Usage (MR2) ........................................................................................................ 82

Multi Purpose Register (MR3).................................................................................................................... 84

Operation of the DDR3 SDRAM ..................................................................................................................90

Read Timing Definition............................................................................................................................... 90

Read Operation ......................................................................................................................................... 95

Write Timing Definition............................................................................................................................. 102

Write Operation........................................................................................................................................ 104

Write Timing Violations ............................................................................................................................ 110

Write Data Mask ...................................................................................................................................... 111

Precharge ................................................................................................................................................ 112

Auto Precharge Operation ....................................................................................................................... 113

Auto-Refresh............................................................................................................................................ 114

Self-Refresh............................................................................................................................................. 115

Power-Down Mode .................................................................................................................................. 117

Input Clock Frequency Change during Precharge Power-Down.............................................................. 124

On-Die Termination (ODT)....................................................................................................................... 125

ZQ Calibration.......................................................................................................................................... 137

Package Drawing ......................................................................................................................................139

136-ball FBGA ......................................................................................................................................... 139

Recommended Soldering Conditions ........................................................................................................140

EDJ8232B5MB Datasheet(PDF) 6 Page - Elpida Memory

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