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

• Manufacturer Part Number: MT46H8M32LFB5-6 IT:H
• Description: DRAM Chip DDR SDRAM 256M-Bit 8Mx32 1.8V 90-Pin VFBGA Tray
• Manufacturer: Micron Technology Inc
• Type: DDR SDRAMr

Specifications of MT46H8M32LFB5-6 IT:H

• Density: 256 Mb
• Maximum Clock Rate: 166 MHz
• Package: 90VFBGA
• Address Bus Width: 14 Bit
• Operating Supply Voltage: 1.8 V
• Maximum Random Access Time: 6.5|5 ns
• Operating Temperature: -40 to 85 °C
• Organization: 8Mx32
• Address Bus: 14b
• Access Time (max): 6.5/5ns
• Operating Supply Voltage (typ): 1.8V
• Package Type: VFBGA
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (max): 1.95V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 120mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Compliant

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. H 11/09 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 .............................................................................................................................................. 49
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. H, Production – 11/09 .......................................................................................................................... 94
Rev. G, Production – 09/09 .......................................................................................................................... 94
Rev. F, Production – 4/09 ............................................................................................................................ 94
Rev. E, Production – 3/09 ............................................................................................................................ 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.