mt16vddf6464hy-26a Micron Semiconductor Products, mt16vddf6464hy-26a Datasheet - Page 10

• Manufacturer Part Number: mt16vddf6464hy-26a
• Description: 512mb, 1gb X64 200-pin Ddr Sodimm
• Manufacturer: Micron Semiconductor Products

Table 6:
NOTE:
Table 7:
09005aef80a646bc
DDF16C64_128x64HG_B.fm - Rev. B 7/03 EN
1. For a burst length of two, A1-Ai select the two-data-ele-
2. For a burst length of four, A2-Ai select the four-data-
3. For a burst length of eight, A3-Ai select the eight-data-
4. Whenever a boundary of the block is reached within a
5. i = 9 (512MB);
LENGTH
BURST
ment block; A0 selects the first access within the block.
element block; A0-A1 select the first access within the
block.
element block; A0-A2 select the first access within the
block.
given sequence above, the following access wraps
within the block.
i = 9,11 (1GB)
2
4
8
SPEED
-26A
-335
-262
-265
-202
A2 A1 A0
0
0
0
0
1
1
1
1
STARTING
ADDRESS
COLUMN
Burst Definition Table
CAS Latency (CL) Table
A1 A0
0
0
1
1
0
0
1
1
0
0
1
1
75 £ f £ 133
75 £ f £ 133
75 £ f £ 133
75 £ f £ 100
75 £ f £ 100
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
CLOCK FREQUENCY (MHZ)
CL = 2
ALLOWABLE OPERATING
ORDER OF ACCESSES WITHIN
0-1-2-3-4-5-6-7
1-2-3-4-5-6-7-0
2-3-4-5-6-7-0-1
3-4-5-6-7-0-1-2
4-5-6-7-0-1-2-3
5-6-7-0-1-2-3-4
6-7-0-1-2-3-4-5
7-0-1-2-3-4-5-6
SEQUENTIAL
TYPE =
0-1-2-3
1-2-3-0
2-3-0-1
3-0-1-2
0-1
1-0
A BURST
75 £ f £ 167
75 £ f £ 133
75 £ f £ 133
75 £ f £ 133
75 £ f £ 125
CL = 2.5
INTERLEAVED
0-1-2-3-4-5-6-7
1-0-3-2-5-4-7-6
2-3-0-1-6-7-4-5
3-2-1-0-7-6-5-4
4-5-6-7-0-1-2-3
5-4-7-6-1-0-3-2
6-7-4-5-2-3-0-1
7-6-5-4-3-2-1-0
TYPE =
0-1-2-3
1-0-3-2
2-3-0-1
3-2-1-0
0-1
1-0
10
Operating Mode
MODE REGISTER SET command with bits A7–A12
each set to zero, and bits A0–A6 set to the desired val-
ues. A DLL reset is initiated by issuing a MODE REGIS-
TER SET command with bits A7 and A9–A12 each set
to zero, bit A8 set to one, and bits A0–A6 set to the
desired values. Although not required by the Micron
device, JEDEC specifications recommend when a
LOAD MODE REGISTER command is issued to reset
the DLL, it should always be followed by a LOAD
MODE REGISTER command to select normal operat-
ing mode.
reserved for future use and/or test modes. Test modes
and reserved states should not be used because
unknown operation or incompatibility with future ver-
sions may result.
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 7, Extended Mode Register
Definition Diagram, on page 11. The extended mode
register is programmed via the LOAD MODE REGIS-
TER command to the mode register (with BA0 = 1 and
COMMAND
COMMAND
The normal operating mode is selected by issuing a
All other combinations of values for A7–A12 are
The extended mode register controls functions
DQS
DQS
CK#
CK#
DQ
DQ
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Figure 6: CAS Latency Diagram
CK
CK
READ
READ
Burst Length = 4 in the cases shown
Shown with nominal t AC, t DQSCK, and t DQSQ
T0
T0
200-PIN DDR SODIMM
CL = 2
TRANSITIONING DATA
CL = 2.5
512MB, 1GB (x64)
NOP
NOP
T1
T1
T2
NOP
NOP
T2
©2003 Micron Technology, Inc.
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NOP
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