mt48lc1m16a1 Micron Semiconductor Products, mt48lc1m16a1 Datasheet - Page 7

• Manufacturer Part Number: mt48lc1m16a1
• Description: Synchronous Dram
• Manufacturer: Micron Semiconductor Products

to ensure compatibility
16Mb: x16 IT SDRAM
16MSDRAMx16IT.p65 – Rev. 5/99
with future devices.
*Should program
M11, M10 = 0, 0
Reserved* WB
11
BA
Mode Register Definition
10
A10
M9
0
1
9
A9
Op Mode
8
A8
7
A7
Programmed Burst Length
CAS Latency
M8
0
Single Location Access
Figure 1
-
6
Write Burst Mode
A6
5
M7
A5
0
-
4
A4
BT
M3
M6 - M0
Defined
0
1
3
A3
-
M6
M2
Burst Length
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
2
A2
M5
M1
M4
M0
1
Operating Mode
Standard Operation
All other states reserved
A1
0
A0
Reserved
Reserved
Reserved
Full Page
M3 = 0
Burst Type
Sequential
Interleave
1
2
4
8
Mode Register (Mx)
Address Bus
Burst Length
CAS Latency
Reserved
Reserved
Reserved
Reserved
Reserved
1
2
3
Reserved
Reserved
Reserved
Reserved
M3 = 1
1
2
4
8
7
NOTE: 1. For a burst length of two, A1-A7 select the block
Length
Burst
(256)
Page
Full
2
4
8
2. For a burst length of four, A2-A7 select the block
3. For a burst length of eight, A3-A7 select the block
4. For a full-page burst, the full row is selected and
5. Whenever a boundary of the block is reached
6. For a burst length of one, A0-A7 select the unique
(location 0-255)
Starting Column
Micron Technology, Inc., reserves the right to change products or specifications without notice.
of two burst; A0 selects the starting column
within the block.
of four burst; A0-A1 select the starting column
within the block.
of eight burst; A0-A2 select the starting column
within the block.
A0-A7 select the starting column.
within a given sequence above, the following
access wraps within the block.
column to be accessed, and Mode Register bit M3
is ignored.
A2 A1 A0
0
0
0
0
1
1
1
1
n = A0-A7
Address
A1 A0
0
0
1
1
0
0
1
1
0
0
1
1
Burst Definition
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Table 1
Type = Sequential Type = Interleaved
Cn, Cn+1, Cn+2
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
Cn+3, Cn+4...
Order of Accesses Within a Burst
…Cn-1,
0-1-2-3
1-2-3-0
2-3-0-1
3-0-1-2
Cn…
0-1
1-0
16Mb: x16
IT SDRAM
©1999, Micron Technology, Inc.
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
Not supported
0-1-2-3
1-0-3-2
2-3-0-1
3-2-1-0
0-1
1-0