參數(shù)資料
型號(hào)： AM29F080B-90SD
廠商： Advanced Micro Devices, Inc.
英文描述： 8 Megabit (1 M x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
中文描述： 8兆位（1米× 8位）的CMOS 5.0伏只，統(tǒng)一部門快閃記憶體
文件頁(yè)數(shù)： 12/39頁(yè)
文件大小： 517K
代理商： AM29F080B-90SD
10
Am29F080B
21503G5 November1,2006
D AT A S H E E T
Table 1.
Am29F080B Sector Address Table
Note:
All sectors are 64 Kbytes in size.
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
Autoselect Codes (High Voltage Method) table. In addi-
tion, when verifying sector protection, the sector ad-
dress must appear on the appropriate highest order
address bits. Refer to the corresponding Sector Ad-
dress Tables. The Command Definitions table shows
the remaining address bits that are don’t care. When all
necessary bits have been set as required, the program-
ming equipment may then read the corresponding
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 the Command Defini-
tions table. This method does not require V
ID
. See
“Command Definitions” for details on using the autose-
lect mode.
Table 2.
Am29F080B Autoselect Codes (High Voltage Method)
Legend:
L = Logic Low = V
IL
, H = Logic High = V
IH
, SGA = Sector Group Address, X = Don’t care.
Note:
The system may also autoselect information in-system via the command register. See Table 4.
Sector
A19
A18
A17
A16
Address Range
SA0
0
0
0
0
000000h–00FFFFh
SA1
0
0
0
1
010000h–01FFFFh
SA2
0
0
1
0
020000h–02FFFFh
SA3
0
0
1
1
030000h–03FFFFh
SA4
0
1
0
0
040000h–04FFFFh
SA5
0
1
0
1
050000h–05FFFFh
SA6
0
1
1
0
060000h–06FFFFh
SA7
0
1
1
1
070000h–07FFFFh
SA8
1
0
0
0
080000h–08FFFFh
SA9
1
0
0
1
090000h–09FFFFh
SA10
1
0
1
0
0A0000h–0AFFFFh
SA11
1
0
1
1
0B0000h–0BFFFFh
SA12
1
1
0
0
0C0000h–0CFFFFh
SA13
1
1
0
1
0D0000h–0DFFFFh
SA14
1
1
1
0
0E0000h–0EFFFFh
SA15
1
1
1
1
0F0000h–0FFFFFh
Description
CE#
OE#
WE#
A19
to
A12
A11
to
A10
A9
A8
to
A7
A6
A5
to
A2
A1
A0
DQ7
to
DQ0
Manufacturer ID
:
AMD
L
L
H
X
X
V
ID
X
L
X
L
L
01h
Device ID: Am29F080B
L
L
H
X
X
V
ID
X
L
X
L
H
D5h
Sector Group
Protection Verification
L
L
H
SGA
X
V
ID
X
L
X
H
L
01h (protected)
00h
(unprotected)
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