2Gb: x4, x8, x16 DDR3 SDRAM - Micron

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PDF: 09005aef826aaadc Micron Technology, Inc. reserves the right to change products or specifications without notice. 2Gb_DDR3_SDRAM.pdf – Rev. P 2/12 EN 162 � 2006 Micron Technology, Inc. All rights reserved. Figure 73: READ to PRECHARGE (BC4) CK# CK T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 Command READ NOP NOP NOP NOP PRE NOP NOP NOP NOP NOP NOP NOP ACT NOP NOP NOP NOP Address DQS, DQS# DQ Bank a, Col n t RAS t RTP Bank a, (or all) Figure 74: READ to PRECHARGE (AL = 5, CL = 6) CK# CK Command READ NOP NOP NOP NOP NOP NOP NOP Address DQS, DQS# DQ DO n DO n + 1 t RP DO n + 2 DO n + 3 Bank a, Row b Transitioning Data T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 Bank a, Col n t RAS NOP PRE NOP NOP NOP NOP NOP AL = 5 t RTP t RP Figure 75: READ with Auto Precharge (AL = 4, CL = 6) CK# CK Command READ NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP Address DQS, DQS# DQ CL = 6 Bank a, (or all) DO n DO n + 1 DO n + 2 DO n + 3 Transitioning Data T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 Ta0 Bank a, Col n AL = 4 t RTP (MIN) t RAS (MIN) CL = 6 DO n DO n + 1 DO n + 2 DO n + 3 Indicates break in time scale t RP Transitioning Data ACT Bank a, Row b ACT Bank a, Row b Don’t Care Don’t Care Don’t Care 2Gb: x4, x8, x16 DDR3 SDRAM READ Operation
2Gb: x4, x8, x16 DDR3 SDRAM READ Operation DQS to DQ output timing is shown in Figure 76 (page 164). The DQ transitions between valid data outputs must be within tDQSQ of the crossing point of DQS, DQS#. DQS must also maintain a minimum HIGH and LOW time of tQSH and tQSL. Prior to the READ preamble, the DQ balls will either be floating or terminated, depending on the status of the ODT signal. Figure 77 (page 165) shows the strobe-to-clock timing during a READ. The crossing point DQS, DQS# must transition within ± tDQSCK of the clock crossing point. The data out has no timing relationship to CK, only to DQS, as shown in Figure 77 (page 165). Figure 77 (page 165) also shows the READ preamble and postamble. Typically, both DQS and DQS# are High-Z to save power (VDDQ). Prior to data output from the DRAM, DQS is driven LOW and DQS# is HIGH for tRPRE. This is known as the READ preamble. The READ postamble, tRPST, is one half clock from the last DQS, DQS# transition. During the READ postamble, DQS is driven LOW and DQS# is HIGH. When complete, the DQ is disabled or continues terminating, depending on the state of the ODT signal. Figure 82 (page 169) demonstrates how to measure tRPST. PDF: 09005aef826aaadc 2Gb_DDR3_SDRAM.pdf – Rev. P 2/12 EN 163 Micron Technology, Inc. reserves the right to change products or specifications without notice. � 2006 Micron Technology, Inc. All rights reserved.
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DDR3 SDRAM MT41J512M4 - 64 Meg x 4
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2Gb: x4, x8, x16 DDR3 SDRAM Feature
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State Diagram Figure 2: Simplified
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2Gb: x4, x8, x16 DDR3 SDRAM Functio
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Figure 4: 256 Meg x 8 Functional Bl
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Figure 7: 96-Ball FBGA - x16 (Top V
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Table 3: 78-Ball FBGA - x4, x8 Ball
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Table 4: 96-Ball FBGA - x16 Ball De
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Figure 9: 78-Ball FBGA - x4, x8 (HX
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Figure 11: 96-Ball FBGA - x16 (JT)
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Input/Output Capacitance Table 6: D
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Figure 12: Thermal Measurement Poin
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Table 9: I DD0 Measurement Loop CK,
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2Gb: x4, x8, x16 DDR3 SDRAM Electri
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Table 14: I DD4R Measurement Loop C
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Table 16: I DD5B Measurement Loop C
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Table 18: I DD7 Measurement Loop CK
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Electrical Characteristics - I DD S
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Table 21: I DD Maximum Limits - Die
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Electrical Specifications - DC and
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Figure 13: Input Signal 0.925V 0.85
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Table 28: Differential Input Operat
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Figure 18: Definition of Differenti
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Figure 19: Nominal Slew Rate Defini
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ODT Characteristics Figure 21: ODT
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Table 33: R TT Effective Impedances
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Figure 23: t AON and t AOF Definiti
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Output Driver Impedance Figure 26:
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34 Ohm Driver The 34� driver’s
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Alternative 40 Ohm Driver Table 45:
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Output Characteristics and Operatin
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Figure 28: Differential Output Sign
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Slew Rate Definitions for Different
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Table 53: DDR3-1333 Speed Bins DDR3
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Table 55: DDR3-1866 Speed Bins DDR3
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PDF: 09005aef826aaadc Micron Techno
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2Gb: x4, x8, x16 DDR3 SDRAM Command
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Table 62: Derating Values for t IS/
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Figure 32: Nominal Slew Rate and t
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Figure 34: Tangent Line for t IS (C
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Data Setup, Hold, and Derating 2Gb:
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Table 68: Derating Values for t DS/
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2Gb: x4, x8, x16 DDR3 SDRAM Data Se
Page 111 and 112: Figure 37: Nominal Slew Rate for t
Page 113 and 114: Figure 39: Tangent Line for t DH (D
Page 115 and 116: 2Gb: x4, x8, x16 DDR3 SDRAM Command
Page 117 and 118: Commands DESELECT NO OPERATION ZQ C
Page 119 and 120: PRECHARGE REFRESH 2Gb: x4, x8, x16
Page 121 and 122: DLL Disable Mode • All other self
Page 123 and 124: Figure 42: DLL Disable Mode to DLL
Page 125 and 126: Input Clock Frequency Change 2Gb: x
Page 127 and 128: Write Leveling Figure 45: Write Lev
Page 129 and 130: Write Leveling Procedure 2Gb: x4, x
Page 131 and 132: Write Leveling Mode Exit Procedure
Page 133 and 134: Figure 48: Initialization Sequence
Page 135 and 136: Figure 50: MRS to nonMRS Command Ti
Page 137 and 138: Table 77: Burst Order Burst Length
Page 139 and 140: Mode Register 1 (MR1) Figure 53: Mo
Page 141 and 142: On-Die Termination (ODT) WRITE LEVE
Page 143 and 144: Mode Register 2 (MR2) Figure 55: Mo
Page 145 and 146: SRT versus ASR 2Gb: x4, x8, x16 DDR
Page 147 and 148: Figure 58: MPR Block Diagram Memory
Page 149 and 150: PDF: 09005aef826aaadc Micron Techno
Page 153 and 154: MPR Read Predefined Pattern The pre
Page 155 and 156: ACTIVATE Operation Before any READ
Page 157 and 158: READ Operation Figure 66: READ Late
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Page 165 and 166: Figure 77: Data Strobe Timing - REA
Page 167 and 168: Figure 80: t RPST Timing CK CK# DQS
Page 169 and 170: Figure 81: t WPRE Timing Figure 82:
Page 175 and 176: Figure 90: WRITE (BL8) to PRECHARGE
Page 177 and 178: Figure 93: Data Input Timing DQS, D
Page 179 and 180: Figure 94: Self Refresh Entry/Exit
Page 181 and 182: Power-Down Mode Power-down is synch
Page 183 and 184: Figure 95: Active Power-Down Entry
Page 185 and 186: Figure 98: Power-Down Entry After R
Page 187 and 188: Figure 102: ACTIVATE to Power-Down
Page 189 and 190: RESET Operation 2Gb: x4, x8, x16 DD
Page 191 and 192: On-Die Termination (ODT) Figure 107
Page 193 and 194: Dynamic ODT Dynamic ODT Special Use
Page 195 and 196: Table 89: Mode Registers for R TT(W
Page 199 and 200: Synchronous ODT Mode ODT Latency an
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2Gb: x4, x8, x16 DDR3 SDRAM - Micron

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