參數(shù)資料
型號: AM29LV641MH101FI
廠商: ADVANCED MICRO DEVICES INC
元件分類: PROM
英文描述: 64 Megabit (4 M x 16-Bit) MirrorBita?? 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/Oa?? Control
中文描述: 4M X 16 FLASH 3V PROM, 100 ns, PDSO48
封裝: REVERSE, MO-142BDD, TSOP-48
文件頁數(shù): 16/60頁
文件大小: 640K
代理商: AM29LV641MH101FI
14
Am29LV641MH/L
December 21, 2005
D A T A S H E E T
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
A6, A3, A2, A1, and A0 must be as shown in Table 3.
In addition, when verifying sector protection, the sector
address must appear on the appropriate highest order
address bits (see Table 2). Table 3 shows the remain-
ing address bits that are don’t care. When all neces-
sary bits have been set as required, the programming
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 Table 10. This method
does not require V
ID
. Refer to the
Autoselect Com-
mand Sequence
section for more information.
Table 3.
Autoselect Codes, (High Voltage Method)
Legend:
L = Logic Low = V
IL
, H = Logic High = V
IH
, SA = Sector Address, X = Don’t care.
Description
CE#
OE#
WE#
A21
to
A15
A14
to
A10
A9
A8
to
A7
A6
A5
to
A4
A3
to
A2
A1
A0
DQ15 to DQ0
Manufacturer ID
:
AMD
L
L
H
X
X
V
ID
X
L
X
L
L
L
0001h
D
Cycle 1
L
L
H
X
X
V
ID
X
L
X
L
L
H
227Eh
Cycle 2
H
H
L
2213h
Cycle 3
H
H
H
2201h
Sector Protection
Verification
L
L
H
SA
X
V
ID
X
L
X
L
H
L
XX01h (protected),
XX00h (unprotected)
SecSi Sector Indicator Bit
(DQ7), WP# protects
highest address sector
L
L
H
X
X
V
ID
X
L
X
L
H
H
XX98h (factory locked),
XX18h (not factory locked)
SecSi
Sector Indicator Bit
(DQ7), WP# protects
lowest address sector
L
L
H
X
X
V
ID
X
L
X
L
H
H
XX88h (factory locked),
XX08h (not factory locked)
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AM29LV641MH101REI 64 Megabit (4 M x 16-Bit) MirrorBita?? 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/Oa?? Control
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