MT4VDDT3264HY-335F2 Micron Technology Inc, MT4VDDT3264HY-335F2 Datasheet - Page 10

MODULE DDR 256MB 200-SODIMM

MT4VDDT3264HY-335F2

Manufacturer Part Number
MT4VDDT3264HY-335F2
Description
MODULE DDR 256MB 200-SODIMM
Manufacturer
Micron Technology Inc

Specifications of MT4VDDT3264HY-335F2

Memory Type
DDR SDRAM
Memory Size
256MB
Speed
333MT/s
Package / Case
200-SODIMM
Main Category
DRAM Module
Sub-category
DDR SDRAM
Module Type
200SODIMM
Device Core Size
64b
Organization
32Mx64
Total Density
256MByte
Chip Density
512Mb
Access Time (max)
700ps
Maximum Clock Rate
333MHz
Operating Supply Voltage (typ)
2.5V
Operating Current
780mA
Number Of Elements
4
Operating Supply Voltage (max)
2.7V
Operating Supply Voltage (min)
2.3V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Pin Count
200
Mounting
Socket
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
557-1231
MT4VDDT3264HY-335F2
Extended Mode Register
beyond those controlled by the mode register; these
additional functions are DLL enable/disable and out-
put drive strength. These functions are controlled via
the bits shown in Figure 4, Mode Register Definition
Diagram, on page 8. The extended mode register is
programmed via the LOAD MODE REGISTER com-
mand to the mode register (with BA0 = 1 and BA1 = 0)
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.
Output Drive Strength
specified to be SSTL2, Class II. The x16 DDR SDRAM
devices used in these modules support an option for
reduced drive. The reduced drive option is intended
for lighter load and point-to-point environments. For
detailed information on output drive strength options,
refer to 256Mb or 512Mb DDR SDRAM component
data sheets.
DLL Enable/Disable
DLL enable is required during power-up initialization
and upon returning to normal operation after having
pdf: 09005aef80b56d1b, source: 09005aef8086ea0b
DDA4C16_32x64HG.fm - Rev. D 9/04 EN
The extended mode register controls functions
The extended mode register must be loaded when
The normal full drive strength for all outputs is
The DLL must be enabled for normal operation.
The
10
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.
NOTE:
1.
2.
128MB, 256MB (x64, SR) PC3200
E11
0
14
0
BA1 BA0
1
E10
Figure 6: Extended Mode Register
1
BA1 and BA0 (E14 and E13) must be “0, 1” to select
the Extended Mode Register (vs. the base Mode Regis-
ter).
QFC# is not supported.
200-PIN DDR SDRAM SODIMM
13
0
1
Micron Technology, Inc., reserves the right to change products or specifications without notice.
E9
12
0
A12
E8
11
0
A11
E7
0
10
A10
Definition Diagram
E6 E5
0
9
Operating Mode
A9
0
8
A8
E4
0
7
A7 A6 A5 A4 A3
E3
0
6
E2
0
5
2
4
E1,
Valid
3
E0
2
A2 A1 A0
DS
Operating Mode
Normal Operation
All other states reserved
1
E1
0
1
©2004 Micron Technology, Inc.
DLL
0
E0
0
1
Drive Strength
Extended Mode
Register (Ex)
Address Bus
Reduced
Normal
Disable
Enable
DLL

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