4Gb: x4, x8, x16 DDR3 SDRAM
Features
DDR3 SDRAM
MT41J1G4 – 128 Meg x 4 x 8 banks
MT41J512M8 – 64 Meg x 8 x 8 banks
MT41J256M16 – 32 Meg x 16 x 8 banks
Features
• VDD = VDDQ = 1.5V ±0.075V
• 1.5V center-terminated push/pull I/O
• Differential bidirectional data strobe
• 8n-bit prefetch architecture
• Differential clock inputs (CK, CK#)
• 8 internal banks
• Nominal and dynamic on-die termination (ODT)
for data, strobe, and mask signals
• Programmable CAS READ latency (CL)
• Posted CAS additive latency (AL)
• Programmable CAS WRITE latency (CWL) based on
tCK
• Fixed burst length (BL) of 8 and burst chop (BC) of 4
(via the mode register set [MRS])
• Selectable BC4 or BL8 on-the-fly (OTF)
• Self refresh mode
• TC of 0°C to 95°C
– 64ms, 8192 cycle refresh at 0°C to 85°C
– 32ms, 8192 cycle refresh at 85°C to 95°C
• Self refresh temperature (SRT)
• Write leveling
• Multipurpose register
• Output driver calibration
Table 1: Key Timing Parameters
Options1
• Configuration
– 1 Gig x 4
– 512 Meg x 8
– 256 Meg x 16
• FBGA package (Pb-free) – x4, x8
– 78-ball (10.5mm x 12mm) Rev. D
– 78-ball (9mm x 10.5mm) Rev. E, J
• FBGA package (Pb-free) – x16
– 96-ball (10mm x 14mm) Rev. D
– 96-ball (9mm x 14mm) Rev. E
• Timing – cycle time
– 938ps @ CL = 14 (DDR3-2133)
– 1.071ns @ CL = 13 (DDR3-1866)
– 1.25ns @ CL = 11 (DDR3-1600)
– 1.5ns @ CL = 9 (DDR3-1333)
– 1.87ns @ CL = 7 (DDR3-1066)
• Operating temperature
– Commercial (0°C ≤ TC ≤ +95°C)
– Industrial (–40°C ≤ TC ≤ +95°C)
• Revision
Marking
 
1G4
512M8
256M16
 
RA
RH
 
RE
HA
 
-093
-107
-125
-15E
-187E
 
None
IT
:D/:E/:J
Note:
1. Not all options listed can be combined to
define an offered product. Use the part
catalog search on http://www.micron.com
for available offerings.
Speed Grade
Data Rate (MT/s)
Target tRCD-tRP-CL
tRCD (ns)
tRP (ns)
-0931, 2, 3, 4
-1071, 2, 3
-1251, 2,
-15E1,
-187E
2133
1866
1600
1333
1066
14-14-14
13-13-13
11-11-11
9-9-9
7-7-7
13.09
13.91
13.75
13.5
13.1
13.09
13.91
13.75
13.5
13.1
CL (ns)
13.09
13.91
13.75
13.5
13.1
Notes:
1. Backward compatible to 1066, CL = 7 (-187E).
2. Backward compatible to 1333, CL = 9 (-15E).
3. Backward compatible to 1600, CL = 11 (-125).
4. Backward compatible to 1866, CL = 13 (-107).
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4Gb_DDR3_SDRAM.pdf - Rev. M 4/13 EN
Products and specifications discussed herein are subject to change by Micron without notice.
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
 2009 Micron Technology, Inc. All rights reserved.
4Gb: x4, x8, x16 DDR3 SDRAM
Features
Table 2: Addressing
Parameter
Configuration
Refresh count
Row addressing
Bank addressing
Column addressing
Page size
1 Gig x 4
512 Meg x 8
256 Meg x 16
128 Meg x 4 x 8 banks
64 Meg x 8 x 8 banks
32 Meg x 16 x 8 banks
8K
64K (A[15:0])
8 (BA[2:0])
2K (A[11, 9:0])
1KB
8K
64K (A[15:0])
8 (BA[2:0])
1K (A[9:0])
1KB
8K
32K (A[14:0])
8 (BA[2:0])
1K (A[9:0])
2KB
Figure 1: DDR3 Part Numbers
 
Example Part Number:    MT41J512M8RH-125:E
MT41J
Configuration
Package
Speed
Revision
-
:
Configuration
1 Gig x 4
512 Meg x 8
256 Meg x 16
1G4
512M8
256M16
:D/:E/:J
Revision
Temperatu re
Commercial
Industrial temperature
None
IT
Package
78-ball 10.5mm x 12mm FBGA
78-ball 9mm x 10.5mm FBGA
96-ball 10.0mm x 14mm FBGA
96-ball 9mm x 14mm FBGA
 Rev.
 Mark
D
E, J
D
E
RA
RH
RE
HA
Speed Grade
tCK = 0.938ns, CL = 14
tCK = 1.071ns, CL = 13
tCK = 1.25ns, CL = 11
tCK = 1.5ns, CL = 9
tCK = 1.87ns, CL = E
-093
-107
-125
-15E
-187E
Note:
1. Not all options listed can be combined to define an offered product. Use the part catalog search on
http://www.micron.com for available offerings.
FBGA Part Marking Decoder
Due to space limitations, FBGA-packaged components have an abbreviated part marking that is different from the
part number. For a quick conversion of an FBGA code, see the FBGA Part Marking Decoder on Micron’s Web site:
http://www.micron.com.
PDF: 09005aef8417277b
4Gb_DDR3_SDRAM.pdf - Rev. M 4/13 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
 2009 Micron Technology, Inc. All rights reserved.
4Gb: x4, x8, x16 DDR3 SDRAM
Features
Contents
State Diagram  ................................................................................................................................................  11
Functional Description ...................................................................................................................................  12
Industrial Temperature ...............................................................................................................................  12
General Notes  ............................................................................................................................................  12
Functional Block Diagrams  .............................................................................................................................  14
Ball Assignments and Descriptions  .................................................................................................................  17
Package Dimensions .......................................................................................................................................  23
Electrical Specifications ..................................................................................................................................  27
Absolute Ratings .........................................................................................................................................  27
Input/Output Capacitance ..........................................................................................................................  28
Thermal Characteristics ..................................................................................................................................  29
Electrical Specifications – IDD Specifications and Conditions ............................................................................  31
Electrical Characteristics – IDD Specifications  ..................................................................................................  42
Electrical Specifications – DC and AC  ..............................................................................................................  46
DC Operating Conditions  ...........................................................................................................................  46
Input Operating Conditions  ........................................................................................................................  46
AC Overshoot/Undershoot Specification  .....................................................................................................  49
Slew Rate Definitions for Single-Ended Input Signals  ...................................................................................  53
Slew Rate Definitions for Differential Input Signals  ......................................................................................  55
ODT Characteristics  .......................................................................................................................................  56
ODT Resistors  ............................................................................................................................................  57
ODT Sensitivity  ..........................................................................................................................................  58
ODT Timing Definitions  .............................................................................................................................  58
Output Driver Impedance ...............................................................................................................................  62
34 Ohm Output Driver Impedance  ..............................................................................................................  63
34 Ohm Driver ............................................................................................................................................  64
34 Ohm Output Driver Sensitivity ................................................................................................................  65
Alternative 40 Ohm Driver  ..........................................................................................................................  66
40 Ohm Output Driver Sensitivity ................................................................................................................  66
Output Characteristics and Operating Conditions ............................................................................................  68
Reference Output Load ...............................................................................................................................  70
Slew Rate Definitions for Single-Ended Output Signals .................................................................................  71
Slew Rate Definitions for Differential Output Signals ....................................................................................  72
Speed Bin Tables  ............................................................................................................................................  73
Electrical Characteristics and AC Operating Conditions  ...................................................................................  78
Command and Address Setup, Hold, and Derating ...........................................................................................  98
Data Setup, Hold, and Derating ...................................................................................................................... 106
Commands – Truth Tables  ............................................................................................................................. 115
Commands  ................................................................................................................................................... 118
DESELECT  ................................................................................................................................................ 118
NO OPERATION  ........................................................................................................................................ 118
ZQ CALIBRATION LONG  ........................................................................................................................... 118
ZQ CALIBRATION SHORT .......................................................................................................................... 118
ACTIVATE  ................................................................................................................................................. 118
READ ........................................................................................................................................................ 118
WRITE  ...................................................................................................................................................... 119
PRECHARGE  ............................................................................................................................................. 120
REFRESH  .................................................................................................................................................. 120
SELF REFRESH .......................................................................................................................................... 121
DLL Disable Mode ..................................................................................................................................... 122
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4Gb_DDR3_SDRAM.pdf - Rev. M 4/13 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
 2009 Micron Technology, Inc. All rights reserved.
4Gb: x4, x8, x16 DDR3 SDRAM
Features
Input Clock Frequency Change  ...................................................................................................................... 126
Write Leveling  ............................................................................................................................................... 128
Write Leveling Procedure  ........................................................................................................................... 130
Write Leveling Mode Exit Procedure  ........................................................................................................... 132
Initialization  ................................................................................................................................................. 133
Mode Registers .............................................................................................................................................. 135
Mode Register 0 (MR0) ................................................................................................................................... 136
Burst Length  ............................................................................................................................................. 136
Burst Type ................................................................................................................................................. 137
DLL RESET ................................................................................................................................................ 138
Write Recovery  .......................................................................................................................................... 138
Precharge Power-Down (Precharge PD)  ...................................................................................................... 139
CAS Latency (CL) ....................................................................................................................................... 139
Mode Register 1 (MR1) ................................................................................................................................... 140
DLL Enable/DLL Disable  ........................................................................................................................... 140
Output Drive Strength  ............................................................................................................................... 141
OUTPUT ENABLE/DISABLE  ...................................................................................................................... 141
TDQS Enable ............................................................................................................................................. 141
On-Die Termination  .................................................................................................................................. 142
WRITE LEVELING  ..................................................................................................................................... 142
POSTED CAS ADDITIVE Latency ................................................................................................................ 142
Mode Register 2 (MR2) ................................................................................................................................... 143
CAS Write Latency (CWL) ........................................................................................................................... 144
AUTO SELF REFRESH (ASR) ....................................................................................................................... 144
SELF REFRESH TEMPERATURE (SRT) ........................................................................................................ 145
SRT vs. ASR  ............................................................................................................................................... 145
DYNAMIC ODT  ......................................................................................................................................... 145
Mode Register 3 (MR3) ................................................................................................................................... 146
MULTIPURPOSE REGISTER (MPR)  ............................................................................................................ 146
MPR Functional Description ...................................................................................................................... 147
MPR Register Address Definitions and Bursting Order ................................................................................. 148
MPR Read Predefined Pattern  .................................................................................................................... 154
MODE REGISTER SET (MRS) Command  ........................................................................................................ 154
ZQ CALIBRATION Operation  ......................................................................................................................... 155
ACTIVATE Operation  ..................................................................................................................................... 156
READ Operation ............................................................................................................................................ 158
WRITE Operation  .......................................................................................................................................... 169
DQ Input Timing  ....................................................................................................................................... 177
PRECHARGE Operation ................................................................................................................................. 179
SELF REFRESH Operation .............................................................................................................................. 179
Extended Temperature Usage  ........................................................................................................................ 181
Power-Down Mode ........................................................................................................................................ 182
RESET Operation ........................................................................................................................................... 190
On-Die Termination (ODT) ............................................................................................................................ 192
Functional Representation of ODT  ............................................................................................................. 192
Nominal ODT ............................................................................................................................................ 192
Dynamic ODT  ............................................................................................................................................... 194
Dynamic ODT Special Use Case  ................................................................................................................. 194
Functional Description .............................................................................................................................. 194
Synchronous ODT Mode ................................................................................................................................ 200
ODT Latency and Posted ODT .................................................................................................................... 200
Timing Parameters  .................................................................................................................................... 200
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4Gb_DDR3_SDRAM.pdf - Rev. M 4/13 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
 2009 Micron Technology, Inc. All rights reserved.
4Gb: x4, x8, x16 DDR3 SDRAM
Features
ODT Off During READs .............................................................................................................................. 203
Asynchronous ODT Mode .............................................................................................................................. 205
Synchronous to Asynchronous ODT Mode Transition (Power-Down Entry) .................................................. 207
Asynchronous to Synchronous ODT Mode Transition (Power-Down Exit)  ........................................................ 209
Asynchronous to Synchronous ODT Mode Transition (Short CKE Pulse) ...................................................... 211
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4Gb_DDR3_SDRAM.pdf - Rev. M 4/13 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
 2009 Micron Technology, Inc. All rights reserved.
4Gb: x4, x8, x16 DDR3 SDRAM
Features
List of Figures
Figure 1:   DDR3 Part Numbers ..........................................................................................................................  2
Figure 2:   Simplified State Diagram  .................................................................................................................  11
Figure 3:   1 Gig x 4 Functional Block Diagram  ..................................................................................................  14
Figure 4:   512 Meg x 8 Functional Block Diagram  .............................................................................................  15
Figure 5:   256 Meg x 16 Functional Block Diagram  ...........................................................................................  16
Figure 6:   78-Ball FBGA – x4, x8 (Top View)  ......................................................................................................  17
Figure 7:   96-Ball FBGA – x16 (Top View)  .........................................................................................................  18
Figure 8:   78-Ball FBGA – x4, x8 (RA) ................................................................................................................  23
Figure 9:   78-Ball FBGA – x4, x8 (RH)  ...............................................................................................................  24
Figure 10:   96-Ball FBGA – x16 (RE)  .................................................................................................................  25
Figure 11:   96-Ball FBGA – x16 (HA) .................................................................................................................  26
Figure 12:   Thermal Measurement Point  .........................................................................................................  30
Figure 13:   Input Signal  ..................................................................................................................................  48
Figure 14:   Overshoot  .....................................................................................................................................  49
Figure 15:   Undershoot ...................................................................................................................................  49
Figure 16:   VIX for Differential Signals ..............................................................................................................  51
Figure 17:   Single-Ended Requirements for Differential Signals  ........................................................................  51
Figure 18:   Definition of Differential AC-Swing and tDVAC  ...............................................................................  52
Figure 19:   Nominal Slew Rate Definition for Single-Ended Input Signals ..........................................................  54
Figure 20:   Nominal Differential Input Slew Rate Definition for DQS, DQS# and CK, CK#  ..................................  55
Figure 21:   ODT Levels and I-V Characteristics  ................................................................................................  56
Figure 22:   ODT Timing Reference Load  ..........................................................................................................  59
Figure 23:   tAON and tAOF Definitions  ............................................................................................................  60
Figure 24:   tAONPD and tAOFPD Definitions  ...................................................................................................  60
Figure 25:   tADC Definition .............................................................................................................................  61
Figure 26:   Output Driver ................................................................................................................................  62
Figure 27:   DQ Output Signal  ..........................................................................................................................  69
Figure 28:   Differential Output Signal  ..............................................................................................................  70
Figure 29:   Reference Output Load for AC Timing and Output Slew Rate  ...........................................................  70
Figure 30:   Nominal Slew Rate Definition for Single-Ended Output Signals  .......................................................  71
Figure 31:   Nominal Differential Output Slew Rate Definition for DQS, DQS# ....................................................  72
Figure 32:   Nominal Slew Rate and tVAC for tIS (Command and Address – Clock)  ............................................. 102
Figure 33:   Nominal Slew Rate for tIH (Command and Address – Clock) ........................................................... 103
Figure 34:   Tangent Line for tIS (Command and Address – Clock)  .................................................................... 104
Figure 35:   Tangent Line for tIH (Command and Address – Clock) .................................................................... 105
Figure 36:   Nominal Slew Rate and tVAC for tDS (DQ – Strobe) ......................................................................... 111
Figure 37:   Nominal Slew Rate for tDH (DQ – Strobe)  ...................................................................................... 112
Figure 38:   Tangent Line for tDS (DQ – Strobe)  ................................................................................................ 113
Figure 39:   Tangent Line for tDH (DQ – Strobe)  ............................................................................................... 114
Figure 40:   Refresh Mode  ............................................................................................................................... 121
Figure 41:   DLL Enable Mode to DLL Disable Mode  ........................................................................................ 123
Figure 42:   DLL Disable Mode to DLL Enable Mode  ........................................................................................ 124
Figure 43:   DLL Disable tDQSCK  .................................................................................................................... 125
Figure 44:   Change Frequency During Precharge Power-Down  ........................................................................ 127
Figure 45:   Write Leveling Concept ................................................................................................................. 128
Figure 46:   Write Leveling Sequence ............................................................................................................... 131
Figure 47:   Write Leveling Exit Procedure  ....................................................................................................... 132
Figure 48:   Initialization Sequence  ................................................................................................................. 134
Figure 49:   MRS to MRS Command Timing (tMRD) ......................................................................................... 135
Figure 50:   MRS to nonMRS Command Timing (tMOD)  .................................................................................. 136
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4Gb_DDR3_SDRAM.pdf - Rev. M 4/13 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
 2009 Micron Technology, Inc. All rights reserved.
4Gb: x4, x8, x16 DDR3 SDRAM
Features
Figure 51:   Mode Register 0 (MR0) Definitions  ................................................................................................ 137
Figure 52:   READ Latency  .............................................................................................................................. 139
Figure 53:   Mode Register 1 (MR1) Definition  ................................................................................................. 140
Figure 54:   READ Latency (AL = 5, CL = 6)  ....................................................................................................... 143
Figure 55:   Mode Register 2 (MR2) Definition  ................................................................................................. 144
Figure 56:   CAS Write Latency  ........................................................................................................................ 144
Figure 57:   Mode Register 3 (MR3) Definition  ................................................................................................. 146
Figure 58:   Multipurpose Register (MPR) Block Diagram  ................................................................................. 147
Figure 59:   MPR System Read Calibration with BL8: Fixed Burst Order Single Readout  ..................................... 150
Figure 60:   MPR System Read Calibration with BL8: Fixed Burst Order, Back-to-Back Readout .......................... 151
Figure 61:   MPR System Read Calibration with BC4: Lower Nibble, Then Upper Nibble  .................................... 152
Figure 62:   MPR System Read Calibration with BC4: Upper Nibble, Then Lower Nibble  .................................... 153
Figure 63:   ZQ CALIBRATION Timing (ZQCL and ZQCS)  ................................................................................. 155
Figure 64:   Example: Meeting tRRD (MIN) and tRCD (MIN)  ............................................................................. 156
Figure 65:   Example: tFAW  ............................................................................................................................. 157
Figure 66:   READ Latency  .............................................................................................................................. 158
Figure 67:   Consecutive READ Bursts (BL8)  .................................................................................................... 160
Figure 68:   Consecutive READ Bursts (BC4)  .................................................................................................... 160
Figure 69:   Nonconsecutive READ Bursts  ....................................................................................................... 161
Figure 70:   READ (BL8) to WRITE (BL8)  .......................................................................................................... 161
Figure 71:   READ (BC4) to WRITE (BC4) OTF  .................................................................................................. 162
Figure 72:   READ to PRECHARGE (BL8) .......................................................................................................... 162
Figure 73:   READ to PRECHARGE (BC4)  ......................................................................................................... 163
Figure 74:   READ to PRECHARGE (AL = 5, CL = 6)  ........................................................................................... 163
Figure 75:   READ with Auto Precharge (AL = 4, CL = 6) ..................................................................................... 163
Figure 76:   Data Output Timing – tDQSQ and Data Valid Window  .................................................................... 165
Figure 77:   Data Strobe Timing – READs  ......................................................................................................... 166
Figure 78:   Method for Calculating tLZ and tHZ ............................................................................................... 167
Figure 79:   tRPRE Timing  ............................................................................................................................... 167
Figure 80:   tRPST Timing  ............................................................................................................................... 168
Figure 81:   tWPRE Timing  .............................................................................................................................. 170
Figure 82:   tWPST Timing  .............................................................................................................................. 170
Figure 83:   WRITE Burst  ................................................................................................................................ 171
Figure 84:   Consecutive WRITE (BL8) to WRITE (BL8)   ..................................................................................... 172
Figure 85:   Consecutive WRITE (BC4) to WRITE (BC4) via OTF   ........................................................................ 172
Figure 86:   Nonconsecutive WRITE to WRITE   ................................................................................................. 173
Figure 87:   WRITE (BL8) to READ (BL8)  .......................................................................................................... 173
Figure 88:   WRITE to READ (BC4 Mode Register Setting)  ................................................................................. 174
Figure 89:   WRITE (BC4 OTF) to READ (BC4 OTF) ........................................................................................... 175
Figure 90:   WRITE (BL8) to PRECHARGE  ........................................................................................................ 176
Figure 91:   WRITE (BC4 Mode Register Setting) to PRECHARGE  ...................................................................... 176
Figure 92:   WRITE (BC4 OTF) to PRECHARGE  ................................................................................................ 177
Figure 93:   Data Input Timing  ........................................................................................................................ 178
Figure 94:   Self Refresh Entry/Exit Timing  ...................................................................................................... 180
Figure 95:   Active Power-Down Entry and Exit  ................................................................................................ 184
Figure 96:   Precharge Power-Down (Fast-Exit Mode) Entry and Exit ................................................................. 185
Figure 97:   Precharge Power-Down (Slow-Exit Mode) Entry and Exit ................................................................ 185
Figure 98:   Power-Down Entry After READ or READ with Auto Precharge (RDAP) ............................................. 186
Figure 99:   Power-Down Entry After WRITE .................................................................................................... 186
Figure 100:   Power-Down Entry After WRITE with Auto Precharge (WRAP)  ...................................................... 187
Figure 101:   REFRESH to Power-Down Entry  .................................................................................................. 187
Figure 102:   ACTIVATE to Power-Down Entry  ................................................................................................. 188
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
 2009 Micron Technology, Inc. All rights reserved.
4Gb: x4, x8, x16 DDR3 SDRAM
Features
Figure 103:   PRECHARGE to Power-Down Entry  ............................................................................................. 188
Figure 104:   MRS Command to Power-Down Entry  ......................................................................................... 189
Figure 105:   Power-Down Exit to Refresh to Power-Down Entry  ....................................................................... 189
Figure 106:   RESET Sequence ......................................................................................................................... 191
Figure 107:   On-Die Termination  ................................................................................................................... 192
Figure 108:   Dynamic ODT: ODT Asserted Before and After the WRITE, BC4  .................................................... 197
Figure 109:   Dynamic ODT: Without WRITE Command   .................................................................................. 197
Figure 110:   Dynamic ODT: ODT Pin Asserted Together with WRITE Command for 6 Clock Cycles, BL8 ............ 198
Figure 111:   Dynamic ODT: ODT Pin Asserted with WRITE Command for 6 Clock Cycles, BC4 .......................... 199
Figure 112:   Dynamic ODT: ODT Pin Asserted with WRITE Command for 4 Clock Cycles, BC4 .......................... 199
Figure 113:   Synchronous ODT  ...................................................................................................................... 201
Figure 114:   Synchronous ODT (BC4)  ............................................................................................................. 202
Figure 115:   ODT During READs  .................................................................................................................... 204
Figure 116:   Asynchronous ODT Timing with Fast ODT Transition  .................................................................. 206
Figure 117:   Synchronous to Asynchronous Transition During Precharge Power-Down (DLL Off) Entry  ............ 208
Figure 118:   Asynchronous to Synchronous Transition During Precharge Power-Down (DLL Off) Exit ............... 210
Figure 119:   Transition Period for Short CKE LOW Cycles with Entry and Exit Period Overlapping ..................... 212
Figure 120:   Transition Period for Short CKE HIGH Cycles with Entry and Exit Period Overlapping  ................... 212
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 2009 Micron Technology, Inc. All rights reserved.