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

• Manufacturer Part Number: MT46H8M32LFB5-6:H
• Description: IC SDRAM 256MB 166MHZ 90VFBGA
• Manufacturer: Micron Technology Inc
• Series: -r
• Type: DDR SDRAMr

Specifications of MT46H8M32LFB5-6:H

• Format - Memory: RAM
• Memory Type: Mobile DDR SDRAM
• Memory Size: 256M (8Mx32)
• Speed: 166MHz
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.95 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 90-VFBGA
• Organization: 8Mx32
• Density: 256Mb
• Address Bus: 14b
• Access Time (max): 6.5/5ns
• Maximum Clock Rate: 166MHz
• Operating Supply Voltage (typ): 1.8V
• Package Type: VFBGA
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 1.95V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 120mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Lead free / RoHS 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. 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 .............................................................................................................................................. 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. 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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