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參數(shù)資料
| 型號： | AM49PDL640AG85NT |
| 廠商： | SPANSION LLC |
| 元件分類： | 存儲器 |
| 英文描述： | 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory and 16 Mbit (1 M x 16-Bit) Pseudo Static RAM |
| 中文描述： | SPECIALTY MEMORY CIRCUIT, PBGA73 |
| 封裝： | 13 X 9 MM, FBGA-73 |
| 文件頁數(shù)： | 17/69頁 |
| 文件大?。?/td> | 491K |
| 代理商： | AM49PDL640AG85NT |
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November 20, 2003
Am49PDL640AG
15
P R E L I M I N A R Y
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equip-
ment to automatically match a device to be pro-
grammed with its corresponding programming
algorithm. However, the autoselect codes can also be
accessed in-system through the command register.
When using programming equipment, the autoselect
mode requires V
ID
on address pin A9. Address pins
must be as shown in Table 7. In addition, when verify-
ing sector protection, the sector address must appear
on the appropriate highest order address bits (see
Table 4). Table 7 shows the remaining address bits
that are don’t care. When all necessary bits have been
set as required, the programming equipment may then
read the corresponding identifier code on DQ7–DQ0.
However, the autoselect codes can also be accessed
in-system through the command register, for instances
when the device is erased or programmed in a system
without access to high voltage on the A9 pin. The com-
mand sequence is illustrated in Table 14. Note that if a
Bank Address (BA) on address bits A21, A20, and A19
is asserted during the third write cycle of the autose-
lect command, the host system can read autoselect
data that bank and then immediately read array data
from the other bank, without exiting the autoselect
mode.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in Table 14. This method
does not require V
ID
. Refer to the Autoselect Com-
mand Sequence section for more information.
Table 7.
Am29PDL640G Boot Sector/Sector Block
Addresses for Protection/Unprotection
Sector
A21–A12
Sector/
Sector Block Size
SA0
0000000000
4 Kwords
SA1
0000000001
4 Kwords
SA2
0000000010
4 Kwords
SA3
0000000011
4 Kwords
SA4
0000000100
4 Kwords
SA5
0000000101
4 Kwords
SA6
0000000110
4 Kwords
SA7
0000000111
4 Kwords
SA8–SA10
0000001XXX,
0000010XXX,
0000011XXX
96 (3x32) Kwords
SA11–SA14
00001XXXXX
128 (4x32) Kwords
SA15–SA18
00010XXXXX
128 (4x32) Kwords
SA19–SA22
00011XXXXX
128 (4x32) Kwords
SA23–SA26
00100XXXXX
128 (4x32) Kwords
SA27-SA30
00101XXXXX
128 (4x32) Kwords
SA31-SA34
00110XXXXX
128 (4x32) Kwords
SA35-SA38
00111XXXXX
128 (4x32) Kwords
SA39-SA42
01000XXXXX
128 (4x32) Kwords
SA43-SA46
01001XXXXX
128 (4x32) Kwords
SA47-SA50
01010XXXXX
128 (4x32) Kwords
SA51-SA54
01011XXXXX
128 (4x32) Kwords
SA55–SA58
01100XXXXX
128 (4x32) Kwords
SA59–SA62
01101XXXXX
128 (4x32) Kwords
SA63–SA66
01110XXXXX
128 (4x32) Kwords
SA67–SA70
01111XXXXX
128 (4x32) Kwords
SA71–SA74
10000XXXXX
128 (4x32) Kwords
SA75–SA78
10001XXXXX
128 (4x32) Kwords
SA79–SA82
10010XXXXX
128 (4x32) Kwords
SA83–SA86
10011XXXXX
128 (4x32) Kwords
SA87–SA90
10100XXXXX
128 (4x32) Kwords
SA91–SA94
10101XXXXX
128 (4x32) Kwords
SA95–SA98
10110XXXXX
128 (4x32) Kwords
SA99–SA102
10111XXXXX
128 (4x32) Kwords
SA103–SA106
11000XXXXX
128 (4x32) Kwords
SA107–SA110
11001XXXXX
128 (4x32) Kwords
SA111–SA114
11010XXXXX
128 (4x32) Kwords
SA115–SA118
11011XXXXX
128 (4x32) Kwords
SA119–SA122
11100XXXXX
128 (4x32) Kwords
SA123–SA126
11101XXXXX
128 (4x32) Kwords
SA127–SA130
11110XXXXX
128 (4x32) Kwords
SA131–SA133
1111100XXX,
1111101XXX,
1111110XXX
96 (3x32) Kwords
SA134
1111111000
4 Kwords
SA135
1111111001
4 Kwords
SA136
1111111010
4 Kwords
SA137
1111111011
4 Kwords
SA138
1111111100
4 Kwords
SA139
1111111101
4 Kwords
SA140
1111111101
4 Kwords
SA141
1111111111
4 Kwords
Sector
A21–A12
Sector/
Sector Block Size
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| AM49PDL640AGA70NS | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory and 16 Mbit (1 M x 16-Bit) Pseudo Static RAM |
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