MT28F1284W18BQ-605BET Ver la hoja de datos (PDF) - Micron Technology
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MT28F1284W18BQ-605BET Datasheet PDF : 66 Pages
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8 MEG x 16
ASYNC/PAGE/BURST FLASH MEMORY
Burst Wrap
The burst wrap option (RCR3) determines whether
the burst access wraps within the burst length or
crosses the burst length boundary. In wrap mode
(RCR3 = 0) the four-, eight-, or 16-word access will
wrap within the four, eight, or 16 words, respectively.
In no-wrap mode (RCR3 = 1), the device operates simi-
larly to a continuous burst. See Table 11 for more
details.
Burst Length
The burst length (RCR2–RCR0) defines the number
of words the device outputs. The device supports burst
lengths of four words, eight words, 16 words, or contin-
uous burst. When the continuous burst option is
selected, the internal address wraps to 000000h after
reaching the maximum address.
Table 11: Sequence and Burst Length
STARTING
ADDRESS
(DEC)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
...
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
WRAP
RCR3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...
...
...
...
...
...
...
NO
WRAP
RCR3
...
...
...
...
...
...
...
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4-WORD
BURST
LENGTH
LINEAR
0-1-2-3
1-2-3-0
2-3-0-1
3-0-1-2
...
...
...
...
...
...
...
0-1-2-3
1-2-3-4
2-3-4-5
3-4-5-6
…
...
...
...
...
...
...
...
8-WORD
BURST LENGTH
LINEAR
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
...
...
...
...
...
...
...
0-1-2-3-4-5-6-7
1-2-3-4-5-6-7-8
2-3-4-5-6-7-8-9
3-4-5-6-7-8-9-10
4-5-6-7-8-9-10-11
5-6-7-8-9-10-11-12
6-7-8-9-10-11-12-13
7-8-9-10-11-12-13-14
...
...
...
...
...
...
16-WORD
BURST LENGTH
LINEAR
0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15
1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-0
2-3-4-5-6-7-8-9-10-11-12-13-14-15-0-1
3-4-5-6-7-8-9-10-11-12-13-14-15-0-1-2
4-5-6-7-8-9-10-11-12-13-14-15-0-1-2-3
5-6-7-8-9-10-11-12-13-14-15-0-1-2-3-4
6-7-8-9-10-11-12-13-14-15-0-1-2-3-4-5
7-8-9-10-11-12-13-14-15-0-1-2-3-4-5-6
8-9-10-11-12-13-14-15-0-1-2-3-4-5-6-7
9-10-11-12-13-14-15-0-1-2-3-4-5-6-7-8
10-11-12-13-14-15-0-1-2-3-4-5-6-7-8-9
11-12-13-14-15-0-1-2-3-4-5-6-7-8-9-10
12-13-14-15-0-1-2-3-4-5-6-7-8-9-10-11
13-14-15-0-1-2-3-4-5-6-7-8-9-10-11-12
14-15-0-1-2-3-4-5-6-7-8-9-10-11-12-13
15-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14
...
0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15
1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16
2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17
3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18
4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19
5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20
6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21
7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22
8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23
9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24
10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25
11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26
12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-27
13-14-15-16-17-18-19-20-21-22-23-24-25-26-27-28
14-15-16-17-18-19-20-21-22-23-24-25-26-27-28-29
15-16-17-18-19-20-21-22-23-24-25-26-27-28-29-30
CONTINUOUS
BURST
LINEAR
0-1-2-3-4-5-6-…
1-2-3-4-5-6-7-…
2-3-4-5-6-7-8-…
3-4-5-6-7-8-9-…
4-5-6-7-8-9-10-…
5-6-7-8-9-10-11-…
6-7-8-9-10-11-12-…
7-8-9-10-11-12-13-…
...
...
...
...
...
...
14-15-16-17-18-19-20-..
15-16-17-18-19-20-21-..
...
0-1-2-3-4-5-6-…
1-2-3-4-5-6-7-…
2-3-4-5-6-7-8-…
3-4-5-6-7-8-9-…
4-5-6-7-8-9-10-…
5-6-7-8-9-10-11…
6-7-8-9-10-11-12…
7-8-9-10-11-12-13…
...
...
...
...
...
...
14-15-16-17-18-19-20-…
15-16-17-18-19-20-21-…
09005aef80b425b4
MT28F1284W18_D.fm - Rev. D, 11/03 EN
21
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2003 Micron Technology. Inc.
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