MT48LC16M4A2 查看數據表（PDF） - Micron Technology
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MT48LC16M4A2 Datasheet PDF : 55 Pages
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TABLE OF CONTENTS
Functional Block Diagram –16 Meg x 4 ................ 4
Functional Block Diagram – 8 Meg x 8 ................ 5
Functional Block Diagram – 4 Meg x 16 .............. 6
Pin Descriptions ........................................................ 7
Functional Description ........................................... 8
Initialization ......................................................... 8
Register Definition ............................................... 8
Mode Register ................................................. 8
Burst Length .............................................. 8
Burst Type .................................................. 9
CAS Latency .............................................. 10
Operating Mode ........................................ 10
Write Burst Mode ...................................... 10
Commands ........................................................... 11
Truth Table 1 (Commands and DQM Operation) ....... 11
Command Inhibit .......................................... 12
No Operation (NOP) ...................................... 12
Load Mode Register ........................................ 12
Active ............................................................... 12
Read ................................................................. 12
Write ................................................................ 12
Precharge ......................................................... 12
Auto Precharge ............................................... 12
Burst Terminate .............................................. 12
Auto Refresh ................................................... 13
Self Refresh ...................................................... 13
Operation ............................................................. 14
Bank/Row Activation ..................................... 14
Reads ................................................................ 15
Writes .............................................................. 21
Precharge ......................................................... 23
Power-Down ................................................... 23
Clock Suspend ................................................ 24
Burst Read/Single Write ................................. 24
64Mb: x4, x8, x16
SDRAM
Concurrent Auto Precharge .......................... 25
Truth Table 2 (CKE) ................................................... 27
TruthTable3(CurrentState,SameBank) ................... 28
TruthTable4(CurrentState,DifferentBank) ............. 30
Absolute Maximum Ratings .................................... 32
DC Electrical Characteristics
and Operating Conditions ..................................... 32
IDD Specifications and Conditions .......................... 32
Capacitance ............................................................... 33
Electrical Characteristics and Recommended
Operating Conditions (Timing Table) ........... 34
Timing Waveforms
Initialize and Load Mode Register ..................... 36
Power-Down Mode ............................................ 37
Clock Suspend Mode .......................................... 38
Auto Refresh Mode ............................................. 39
Self Refresh Mode ................................................ 40
Reads
Read – Without Auto Precharge .................. 41
Read – With Auto Precharge ........................ 42
Single Read – Without Auto Precharge ....... 43
Single Read – With Auto Precharge ............. 44
Alternating Bank Read Accesses .................... 45
Read – Full-Page Burst ................................... 46
Read – DQM Operation ................................ 47
Writes
Write – Without Auto Precharge ................. 48
Write – With Auto Precharge ....................... 49
Single Write – Without Auto Precharge ...... 50
Single Write – With Auto Precharge ............ 51
Alternating Bank Write Accesses ................... 52
Write – Full-Page Burst .................................. 53
Write – DQM Operation ............................... 54
64Mb: x4, x8, x16 SDRAM
64MSDRAM_F.p65 – Rev. F; Pub. 1/03
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©2003, Micron Technology, Inc.
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