MT46H8M32LFB5-6IT:H Micron Technology Inc, MT46H8M32LFB5-6IT:H Datasheet - Page 3

• Manufacturer Part Number: MT46H8M32LFB5-6IT:H
• Description: MICMT46H8M32LFB5-6_IT:H MDDDR
• Manufacturer: Micron Technology Inc

Contents
General Description ......................................................................................................................................... 8
Functional Block Diagrams ............................................................................................................................... 9
Ball Assignments and Descriptions ................................................................................................................. 11
Package Dimensions ....................................................................................................................................... 15
Electrical Specifications .................................................................................................................................. 17
Electrical Specifications – I
Electrical Specifications – AC Operating Conditions ......................................................................................... 24
Output Drive Characteristics ........................................................................................................................... 29
Functional Description ................................................................................................................................... 32
Commands .................................................................................................................................................... 33
Truth Tables ................................................................................................................................................... 40
State Diagram ................................................................................................................................................ 45
Initialization .................................................................................................................................................. 46
Standard Mode Register .................................................................................................................................. 49
Extended Mode Register ................................................................................................................................. 53
Status Read Register ....................................................................................................................................... 55
Bank/Row Activation ...................................................................................................................................... 57
READ Operation ............................................................................................................................................. 58
WRITE Operation ........................................................................................................................................... 69
PRECHARGE Operation .................................................................................................................................. 81
Auto Precharge ............................................................................................................................................... 81
AUTO REFRESH Operation ............................................................................................................................. 87
SELF REFRESH Operation ............................................................................................................................... 88
Power-Down .................................................................................................................................................. 89
Clock Change Frequency ................................................................................................................................ 93
Revision History ............................................................................................................................................. 94
PDF: 09005aef834bf85b
256mb_mobile_ddr_sdram_t36n.pdf - Rev. I 09/10 EN
DESELECT ................................................................................................................................................. 34
NO OPERATION ......................................................................................................................................... 34
LOAD MODE REGISTER ............................................................................................................................. 34
ACTIVE ...................................................................................................................................................... 34
READ ......................................................................................................................................................... 35
WRITE ....................................................................................................................................................... 36
PRECHARGE .............................................................................................................................................. 37
BURST TERMINATE ................................................................................................................................... 38
AUTO REFRESH ......................................................................................................................................... 38
SELF REFRESH ........................................................................................................................................... 39
DEEP POWER-DOWN ................................................................................................................................. 39
Burst Length .............................................................................................................................................. 50
Burst Type .................................................................................................................................................. 50
CAS Latency ............................................................................................................................................... 51
Operating Mode ......................................................................................................................................... 52
Temperature-Compensated Self Refresh ...................................................................................................... 53
Partial-Array Self Refresh ............................................................................................................................ 54
Output Drive Strength ................................................................................................................................ 54
Concurrent Auto Precharge ......................................................................................................................... 82
Deep Power-Down ..................................................................................................................................... 91
Rev. I, Production – 09/10 ........................................................................................................................... 94
Rev. H, Production – 11/09 .......................................................................................................................... 94
Rev. G, Production – 09/09 .......................................................................................................................... 94
Rev. F, Production – 4/09 ............................................................................................................................. 94
DD
Parameters ........................................................................................................ 20
3
256Mb: x16, x32 Mobile LPDDR SDRAM
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2008 Micron Technology, Inc. All rights reserved.
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