MT18VDVF12872DG-40BF1 Micron Technology Inc, MT18VDVF12872DG-40BF1 Datasheet - Page 28

• Manufacturer Part Number: MT18VDVF12872DG-40BF1
• Description: MODULE DDR 1GB 184-DIMM VLP
• Manufacturer: Micron Technology Inc

Specifications of MT18VDVF12872DG-40BF1

• Memory Type: DDR SDRAM
• Memory Size: 1GB
• Speed: 400MT/s
• Package / Case: 184-DIMM
• Main Category: DRAM Module
• Sub-category: DDR SDRAM
• Module Type: 184VLPRDIMM
• Device Core Size: 72b
• Organization: 128Mx72
• Total Density: 1GByte
• Chip Density: 512Mb
• Maximum Clock Rate: 400MHz
• Operating Supply Voltage (typ): 2.6V
• Operating Current: 1.8A
• Number Of Elements: 18
• Operating Supply Voltage (max): 2.7V
• Operating Supply Voltage (min): 2.5V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Pin Count: 184
• Mounting: Socket
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 10:
PDF: 09005aef81c73825/Source: 09005aef81c73837
DVF18C64_128x72D_2.fm - Rev. A 8/05 EN
Initialization Flow Diagram
Step
10
11
12
13
14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
8
9
Configure Load Mode Register and reset DLL
Assert NOP or DESELECT commands for t RFC
Optional LMR command to clear DLL bit
Assert NOP or DESELECT for t MRD time
Assert NOP or DESELECT for t MRD time
Assert NOP or DESELECT for t MRD time
DRAM is ready for any valid command
Assert NOP or DESELECT for t RFC time
Bring CKE High with a NOP command
Assert NOP or DESELECT for t RP time
Assert NOP or DESELECT for t RP time
Configure Extended Mode Register
Issue AUTO REFRESH command
Issue AUTO REFRESH command
CKE must be LVCMOS Low
Apply stable CLOCKs
V
Wait at least 200µs
Apply V
DD
PRECHARGE ALL
PRECHARGE ALL
and V
REF
DD
and V
Q Ramp
512MB, 1GB: (x72, DR) 184-Pin DDR VLP RDIMM
TT
28
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2003, 2004, 2005 Micron Technology, Inc. All rights reserved.
Initialization