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| 型號： | MT48LC8M16A2BB-6ALIT:G |
| 元件分類： | DRAM |
| 英文描述： | 8M X 16 SYNCHRONOUS DRAM, 5.4 ns, PBGA60 |
| 封裝： | 8 X 16 MM, LEAD FREE, PLASTIC, FBGA-60 |
| 文件頁數(shù)： | 34/57頁 |
| 文件大?。?/td> | 1506K |
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PDF: 09005aef8091e66d/Source: 09005aef8091e625
Micron Technology, Inc., reserves the right to change products or specifications without notice.
128MSDRAM.pmd – Rev. J; Pub. 1/05
2001 Micron Technology, Inc. All rights reserved.
128Mb: x4, x8, x16
SDRAM
TABLE OF CONTENTS
Functional Block Diagram – 32 Meg x 4 ..................
5
Functional Block Diagram – 16 Meg x 8 ..................
6
Functional Block Diagram – 8 Meg x 16 ..................
7
Pin Descriptions ...........................................................
8
Functional Description .............................................
9
Initialization ...........................................................
9
Register Definition .................................................
9
mode register .....................................................
9
Burst Length ................................................
9
Burst Type .................................................... 10
CAS Latency ................................................. 11
Operating Mode .......................................... 11
Write Burst Mode ........................................ 11
Commands ................................................................... 12
Truth Table 1 (Commands and DQM Operation)
............. 12
Command Inhibit .................................................. 13
No Operation (NOP) .............................................. 13
Load mode register ................................................. 13
Active ....................................................................... 13
Read
....................................................................... 13
Write ....................................................................... 13
Precharge ................................................................. 13
Auto Precharge ....................................................... 13
Burst Terminate ...................................................... 13
Auto Refresh ............................................................ 14
Self Refresh .............................................................. 14
Operation ...................................................................... 15
Bank/Row Activation ............................................. 15
Reads ....................................................................... 16
Writes ....................................................................... 22
Precharge ................................................................. 24
Power-Down ........................................................... 24
Clock Suspend ........................................................ 25
Burst Read/Single Write ........................................ 25
Concurrent Auto Precharge .................................. 26
Truth Table 2 (CKE)
..................................................... 28
Truth Table 3 (Current State, Same Bank)
....................... 29
Truth Table 4 (Current State, Different Bank)
.................. 31
Absolute Maximum Ratings ....................................... 33
DC Electrical Characteristics
and Operating Conditions ....................................... 33
IDD Specifications and Conditions ............................ 33
Capacitance .................................................................. 34
AC Electrical Characteristics and Recommended
Operating Conditions (Timing Table) .............. 34
Timing Waveforms
Initialize and Load mode register ........................ 37
Power-Down Mode ................................................ 38
Clock Suspend Mode ............................................. 39
Auto Refresh Mode ................................................ 40
Self Refresh Mode ................................................... 41
Reads
Read – Without Auto Precharge ..................... 42
Read – With Auto Precharge ........................... 43
Single Read – Without Auto Precharge ......... 44
Single Read – With Auto Precharge ............... 45
Alternating Bank Read Accesses ..................... 46
Read – Full-Page Burst ...................................... 47
Read – DQM Operation ................................... 48
Writes
Write – Without Auto Precharge ................... 49
Write – With Auto Precharge ......................... 50
Single Write – Without Auto Precharge ........ 51
Single Write – With Auto Precharge .............. 52
Alternating Bank Write Accesses ................... 53
Write – Full-Page Burst .................................... 54
Write – DQM Operation .................................. 55
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