
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.0 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 512MB, 64M x 72 ECC Module (M312L6523BT(U)S)
........................................................................... 6
6.2 1GB, 128M x 72 ECC Module (M312L2923BT(U)S)
............................................................................ 7
6.3 1GB, 128M x 72 ECC Module (M312L2920BT(U)S)
............................................................................ 8
6.4 2GB, 256M x 72 ECC Module (M312L5628BT(U)0)
............................................................................ 9
6.5 512MB, 64M x 72 ECC Module (M312L6523BG(Z)0).......................................................................................
10
6.6 1GB, 128M x 72 ECC Module (M312L2923BG(Z)0)
.......................................................................... 11
6.7 1GB, 128M x 72 ECC Module (M312L2920BG(Z)0).........................................................................................
12
6.8 2GB, 256M x 72 ECC Module (M312L5720BG(Z)0).........................................................................................
13
7.0 Absolute Maximum Ratings...................................................................................................... 14
8.0 Power & DC Operating Conditions (SSTL_2 In/Out) .............................................................. 14
9.0 DDR SDRAM IDD spec table ..................................................................................................... 15
9.1 M312L6523BT(U)S [ (64M x 8) * 9 , 512MB Module ]
........................................................................ 15
9.2 M312L2923BT(U)S [ (64M x 8) * 18 , 1GB Module ]
.......................................................................... 15
9.3 M312L2920BT(U)S [ (128M x 4) * 18 , 1GB Module ] .......................................................................................
16
9.4 M312L5628BT(U)0 [ (st.256M x 4) * 18 , 2GB Module ]
..................................................................... 16
9.5 M312L6523BG(Z)0 [ (64M x 8) * 9 , 512MB Module ] ......................................................................................
17
9.6 M312L2923BG(Z)0 [ (64M x 8) * 18 , 1GB Module ]
.......................................................................... 17
9.7 M312L2920BG(Z)0 [ (128M x 4) * 18 , 1GB Module ]
......................................................................... 18
9.8 M312L5720BG(Z)0 [ (128M x 4) * 36, 2GB Module ]
.......................................................................... 18
10.0 AC Operating Conditions........................................................................................................ 19
11.0 Input/Output Capacitance ....................................................................................................... 19
12.0 AC Timming Parameters & Specifications ............................................................................ 20
13.0 System Characteristics for DDR SDRAM .............................................................................. 21
14.0 Component Notes.................................................................................................................... 22
15.0 System Notes ........................................................................................................................... 23
16.0 Command Truth Table............................................................................................................. 24
17.0 Physical Dimensions............................................................................................................... 25
17.1 64M x 72 (M312L6523BT(U)S)
.................................................................................................... 25
17.2 128Mx72 (M312L2923BT(U)S), 128Mx72 (M312L2920BT(U)S)
......................................................... 26
17.3 st.256Mx72 (M312L5628BT(U)0)
................................................................................................. 27
17.4 64Mx72 (M312L6523BG(Z)0)
...................................................................................................... 28
17.5 128Mx72 (M312L2923BG(Z)0), (M312L2920BG(Z)0)
...................................................................... 29
17.6 256Mx72 (M312L5720BG(Z)0)
.................................................................................................... 30