
DDR SDRAM
256MB, 512MB, 1GB Unbuffered DIMM
Rev. 0.1 June 2005
Table of Contents
1.0 Ordering Information...................................................................................................................4
2.0 Operating Frequencies................................................................................................................4
3.0 Feature..........................................................................................................................................4
4.0 Pin Configuration (Front side/back side) .................................................................................5
5.0 Pin Description ............................................................................................................................5
6.0 Functional Block Diagram ..........................................................................................................6
6.1 256MB, 32M x 64 Non ECC Module (M368L3324DUS).......................................................................................
6
6.2 512MB, 64M x 64 Non ECC Module (M368L6523DUS)......................................................................................
7
6.3 512MB, 64M x 72 ECC Module (M381L6523DUM)..............................................................................................
8
6.4 1GB, 128M x 64 Non ECC Module (M368L2923DUN).........................................................................................
9
6.5 1GB, 128M x 72 ECC Module (M381L2923DUM).............................................................................................
10
7.0 Absolute Maximum Ratings......................................................................................................11
8.0 DC Operating Conditions..........................................................................................................11
9.0 DDR SDRAM IDD spec table.....................................................................................................12
9.1 M368L3324DUS [ (32M x 16) * 4, 256MB Non ECC Module ]
.................................................................................
12
9.2 M368L6523DUS [ (64M x 8) * 8, 512MB Non ECC Module ]
....................................................................................
12
9.3 M381L6523DUM [ (64M x 8) * 9, 512MB ECC Module ]
............................................................................................
13
9.4 M368L2923DUN [ (64M x 8) * 16, 1GB Non ECC Module ]
......................................................................................
13
9.5 M381L2923DUM [ (64M x 8) * 18, 1GB ECC Module ]
.............................................................................................
14
10.0 AC Operating Conditions........................................................................................................15
11.0 Input/Output Capacitance.......................................................................................................15
12.0 AC Timming Parameters & Specifications............................................................................16
13.0 System Characteristics for DDR SDRAM..............................................................................17
14.0 Component Notes....................................................................................................................18
15.0 System Notes...........................................................................................................................19
16.0 Command Truth Table.............................................................................................................20
17.0 Physical Dimensions...............................................................................................................21
17.1 32M x 64 (M368L3324DUS)
.......................................................................................................21
17.2 64Mx64 (M368L6523DUS)
.........................................................................................................22
17.3 64Mx72 (M381L6523DUM)
........................................................................................................23
17.4 128Mx64 (M368L2923DUN)
.......................................................................................................24
17.5 128Mx72 (M381L2923DUM)
......................................................................................................25