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參數(shù)資料
| 型號： | AM29DL400BT-90SCB |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | PROM |
| 英文描述： | 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory |
| 中文描述： | 512K X 8 FLASH 3V PROM, 90 ns, PDSO44 |
| 封裝： | SOP-44 |
| 文件頁數(shù)： | 12/42頁 |
| 文件大?。?/td> | 534K |
| 代理商： | AM29DL400BT-90SCB |
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12
Am29DL400B
P R E L I M I N A R Y
Table 3.
Am29DL400BB Bottom Boot Sector Architecture
Note:
The address range is A17:A-1 if in byte mode (BYTE# = V
IL
). The address range is A17:A0 if in word mode (BYTE# = V
IH
).
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 equipment
to automatically match a device to be programmed 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
(11.5 V to 12.5 V) on address pin
A9. Address pins A6, A1, and A0 must be as shown in
Table 4. In addition, when verifying sector protection,
the sector address must appear on the appropriate
highest order address bits (see Tables 2 and 3). Table
4 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 corre-
sponding identifier code on DQ7-DQ0.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in Table 5. This method
does not require V
ID
. Refer to the Autoselect Command
Sequence section for more information.
Bank
Sector
Sector Address
Sector Size
(Kbytes/Kwords)
(x8)
Address Range
(x16)
Address Range
Bank
Address
A15
A14
A13
A12
A17
A16
Bank 2
SA13
1
1
1
X
X
X
64/32
70000h–7FFFFh
38000h–3FFFFh
SA12
1
1
0
X
X
X
64/32
60000h–6FFFFh
30000h–37FFFh
SA11
1
0
1
X
X
X
64/32
50000h–5FFFFh
28000h–2FFFFh
SA10
1
0
0
X
X
X
64/32
40000h–4FFFFh
20000h–27FFFh
SA9
0
1
1
X
X
X
64/32
30000h–3FFFFh
18000h–1FFFFh
SA8
0
1
0
X
X
X
64/32
20000h–2FFFFh
10000h–17FFFh
Bank 1
SA7
0
0
1
1
1
X
16/8
1C000h–1FFFFh
0E000h–0FFFFh
SA6
0
0
1
1
0
X
32/16
14000h–1BFFFh
0A000h–0DFFFh
0
1
X
SA5
0
0
1
0
0
1
8/4
12000h–13FFFh
09000h–09FFFh
SA4
0
0
1
0
0
0
8/4
10000h–11FFFh
08000h–08FFFh
SA3
0
0
0
1
1
1
8/4
0E000h–0FFFFh
07000h–07FFFh
SA2
0
0
0
1
1
0
8/4
0C000h–0DFFFh
06000h–06FFFh
SA1
0
0
0
1
0
X
32/16
04000h–0BFFFh
02000h–05FFFh
0
1
X
SA0
0
0
0
0
0
X
16/8
00000h–03FFFh
00000h–01FFFh
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