MT41J256M8 datasheet(10/211 Pages) MICRON

Part #	MT41J256M8

Description	MT41J512M4 ??64 Meg x 4 x 8 Banks

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Manufacturer	MICRON [Micron Technology]

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Table 51: DDR3-1066 Speed Bins ................................................................................................................... 71

Table 52: DDR3-1333 Speed Bins ................................................................................................................... 72

Table 53: DDR3-1600 Speed Bins ................................................................................................................... 73

Table 54: DDR3-1866 Speed Bins ................................................................................................................... 74

Table 55: DDR3-2133 Speed Bins ................................................................................................................... 75

Table 56: Electrical Characteristics and AC Operating Conditions .................................................................... 76

Table 57: Electrical Characteristics and AC Operating Conditions for Speed Extensions .................................... 86

Table 58: Command and Address Setup and Hold Values Referenced – AC/DC-Based ...................................... 96

Table 59: Derating Values for tIS/tIH – AC175/DC100-Based ............................................................................ 97

Table 60: Derating Values for tIS/tIH – AC150/DC100-Based ............................................................................ 97

Table 61: Derating Values for tIS/tIH – AC135/DC100-Based ............................................................................ 98

Table 62: Derating Values for tIS/tIH – AC125/DC100-Based ............................................................................ 98

Table 63: Minimum Required Time tVAC Above VIH(AC) or Below VIL(AC)for Valid Transition ............................... 99

Table 64: DDR3 Data Setup and Hold Values at 1 V/ns (DQS, DQS# at 2 V/ns) – AC/DC-Based ......................... 104

Table 65: Derating Values for tDS/tDH – AC175/DC100-Based ........................................................................ 105

Table 66: Derating Values for tDS/tDH – AC150/DC100-Based ........................................................................ 105

Table 67: Derating Values for tDS/tDH – AC135/DC100-Based at 1V/ns ........................................................... 106

Table 68: Derating Values for tDS/tDH – AC135/DC100-Based at 2V/ns ........................................................... 107

Table 69: Required Minimum Time tVAC Above VIH(AC) (Below VIL(AC)) for Valid DQ Transition ......................... 108

Table 70: Truth Table – Command ................................................................................................................. 113

Table 71: Truth Table – CKE .......................................................................................................................... 115

Table 72: READ Command Summary ............................................................................................................ 117

Table 73: WRITE Command Summary .......................................................................................................... 117

Table 74: READ Electrical Characteristics, DLL Disable Mode ......................................................................... 123

Table 75: Write Leveling Matrix ..................................................................................................................... 127

Table 76: Burst Order .................................................................................................................................... 136

Table 77: MPR Functional Description of MR3 Bits ........................................................................................ 146

Table 78: MPR Readouts and Burst Order Bit Mapping ................................................................................... 147

Table 79: Self Refresh Temperature and Auto Self Refresh Description ............................................................ 179

Table 80: Self Refresh Mode Summary ........................................................................................................... 179

Table 81: Command to Power-Down Entry Parameters .................................................................................. 180

Table 82: Power-Down Modes ....................................................................................................................... 181

Table 83: Truth Table – ODT (Nominal) ......................................................................................................... 191

Table 84: ODT Parameters ............................................................................................................................ 191

Table 85: Write Leveling with Dynamic ODT Special Case .............................................................................. 192

Table 86: Dynamic ODT Specific Parameters ................................................................................................. 193

Table 87: Mode Registers for RTT,nom ............................................................................................................. 193

Table 88: Mode Registers for RTT(WR) ............................................................................................................. 194

Table 89: Timing Diagrams for Dynamic ODT ................................................................................................ 194

Table 90: Synchronous ODT Parameters ........................................................................................................ 199

Table 91: Asynchronous ODT Timing Parameters for All Speed Bins ............................................................... 204

Table 92: ODT Parameters for Power-Down (DLL Off ) Entry and Exit Transition Period ................................... 206

2Gb: x4, x8, x16 DDR3 SDRAM

Features

PDF: 09005aef826aaadc

2Gb_DDR3_SDRAM.pdf - Rev. Q 04/13 EN

10

Micron Technology, Inc. reserves the right to change products or specifications without notice.

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