MT48LC4M32B2B5-7AT View Datasheet(PDF) - Micron Technology
Part Name
Description
MFG CO.
'MT48LC4M32B2B5-7AT' PDF : 79 Pages View PDF
128Mb: x32 SDRAM
Features
Contents
General Description ......................................................................................................................................... 7
Automotive Temperature .............................................................................................................................. 7
Functional Block Diagram ................................................................................................................................ 8
Pin and Ball Assignments and Descriptions ....................................................................................................... 9
Package Dimensions ....................................................................................................................................... 12
Temperature and Thermal Impedance ............................................................................................................ 14
Electrical Specifications .................................................................................................................................. 17
Electrical Specifications – IDD Parameters ........................................................................................................ 18
Electrical Specifications – AC Operating Conditions ......................................................................................... 20
Functional Description ................................................................................................................................... 23
Commands .................................................................................................................................................... 24
COMMAND INHIBIT .................................................................................................................................. 24
NO OPERATION (NOP) ............................................................................................................................... 25
LOAD MODE REGISTER (LMR) ................................................................................................................... 25
ACTIVE ...................................................................................................................................................... 25
READ ......................................................................................................................................................... 26
WRITE ....................................................................................................................................................... 27
PRECHARGE .............................................................................................................................................. 28
BURST TERMINATE ................................................................................................................................... 28
REFRESH ................................................................................................................................................... 29
AUTO REFRESH ..................................................................................................................................... 29
SELF REFRESH ....................................................................................................................................... 29
Truth Tables ................................................................................................................................................... 30
Initialization .................................................................................................................................................. 35
Mode Register ................................................................................................................................................ 37
Burst Length .............................................................................................................................................. 39
Burst Type .................................................................................................................................................. 39
CAS Latency ............................................................................................................................................... 41
Operating Mode ......................................................................................................................................... 41
Write Burst Mode ....................................................................................................................................... 41
Bank/Row Activation ...................................................................................................................................... 42
READ Operation ............................................................................................................................................. 43
WRITE Operation ........................................................................................................................................... 52
Burst Read/Single Write .............................................................................................................................. 59
PRECHARGE Operation .................................................................................................................................. 60
Auto Precharge ........................................................................................................................................... 60
AUTO REFRESH Operation ............................................................................................................................. 72
SELF REFRESH Operation ............................................................................................................................... 74
Power-Down .................................................................................................................................................. 76
Clock Suspend ............................................................................................................................................... 77
PDF: 09005aef80872800
128mb_x32_sdram.pdf - Rev. U 04/13 EN
3
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