256MB, 512MB Unbuffered DIMM
DDR SDRAM
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 (M368L3223HUS) ...................................................................... 6
6.2 256MB, 32M x 72 ECC Module (M381L3223HUM) ............................................................................ 7
6.3 512MB, 64M x 64 Non ECC Module (M368L6423HUN) ....................................................................... 8
6.4 512MB, 64M x 72 ECC Module (M381L6423HUM) ............................................................................ 9
7.0 Absolute Maximum Ratings ..................................................................................................... 10
8.0 DC Operating Conditions ......................................................................................................... 10
9.0 DDR SDRAM IDD spec table .................................................................................................... 11
9.1 M368L3223HUS [ (32M x 8) * 8, 256MB Non ECC Module ] ............................................................. 11
9.2 M381L3223HUM [ (32M x 8) * 9, 256MB ECC Module ] .................................................................... 11
9.3 M368L6423HUN [ (32M x 8) * 16, 512MB Non ECC Module ] ............................................................ 12
9.4 M381L6423HUM [ (32M x 8) * 18, 512MB ECC Module ]................................................................... 12
10.0 AC Operating Conditions........................................................................................................ 13
11.0 Input/Output Capacitance ...................................................................................................... 13
12.0 AC Timming Parameters & Specifications ........................................................................... 14
13.0 System Characteristics for DDR SDRAM ............................................................................. 15
14.0 Component Notes ................................................................................................................... 16
15.0 System Notes: ......................................................................................................................... 17
16.0 Command Truth Table ............................................................................................................ 18
17.0 Physical Dimensions .............................................................................................................. 19
17.1 32Mx64 (M368L3223HUS) ........................................................................................................ 20
17.2 32Mx72 (M381L3223HUM) ....................................................................................................... 21
17.3 64Mx64 (M368L6423HUS) ........................................................................................................ 22
17.4 64Mx72 (M381L6423HUM) ....................................................................................................... 23
Rev. 1.0 November 2005