MT9VDDF6472G-335D3 Micron Technology Inc, MT9VDDF6472G-335D3 Datasheet - Page 12

• Manufacturer Part Number: MT9VDDF6472G-335D3
• Description: MODULE DDR SDRAM 512MB 184-DIMM
• Manufacturer: Micron Technology Inc

Specifications of MT9VDDF6472G-335D3

• Memory Type: DDR SDRAM
• Memory Size: 512MB
• Speed: 167MHz
• Package / Case: 184-DIMM
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 557-1131; MT9VDDF6472G-335DF3

and will retain the stored information until it is pro-
grammed again or the device loses power.
enabling of the DLL should always be followed by a
LOAD MODE REGISTER command to the mode regis-
ter (BA0/BA1 both LOW) to reset the DLL.
all device banks are idle and no bursts are in progress,
and the controller must wait the specified time before
initiating any subsequent operation. Violating either
of these requirements could result in unspecified oper-
ation.
DLL Enable/Disable
DLL enable is required during power-up initialization
and upon returning to normal operation after having
disabled the DLL for the purpose of debug or evalua-
tion. When the device exits self refresh mode, the DLL
is enabled automatically. Any time the DLL is enabled,
200 clock cycles with CKE HIGH must occur before a
READ command can be issued.
pdf: 09005aef80e119b2, source: 09005aef807d56a1
DDF9C32_64x72G.fm - Rev. B 9/04 EN
The extended mode register must be loaded when
The DLL must be enabled for normal operation.
The
12
NOTE:
E12
1. BA1 and BA0 (E14 and E13) must be “0, 1” to select the
2. QFC# is not supported.
0
–
E11
Extended Mode Register (vs. the base Mode Register).
Figure 8: Extended Mode Register
0 1
14
BA1 BA0
0
–
256MB, 512MB (x72, ECC, SR)
Micron Technology, Inc., reserves the right to change products or specifications without notice.
1 1
E10
184-PIN DDR SDRAM RDIMM
13
0
–
12
E9
A12
0
–
11
E8
0
A11
–
Definition Diagram
E7
10
0
–
A10
E6 E5
0
–
9
Operating Mode
A9
0
–
8
A8
E4
0
–
7
A7 A6 A5 A4 A3
E3
0
–
6
E2 2
0
–
5
©2004 Micron Technology, Inc. All rights reserved.
4
E1,
Valid
–
3
E0
2
A2 A1 A0
DS
Operating Mode
Reserved
Reserved
1
E1
0
DLL
0
E0
0
1
Drive Strength
Extended Mode
Register (Ex)
Address Bus
Normal
Disable
Enable
DLL