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參數(shù)資料
| 型號： | AM29LV640MT100REF |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | 64 Megabit (4 M x 16-Bit/8 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Boot Sector Flash Memory |
| 中文描述： | 64兆位（4個M x 16位/八米× 8位）的MirrorBit⑩3.0伏，只引導(dǎo)扇區(qū)閃存 |
| 文件頁數(shù)： | 30/66頁 |
| 文件大?。?/td> | 836K |
| 代理商： | AM29LV640MT100REF |
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28
Am29LV640MT/B
26190C8 February1,2007
D A T A S H E E T
which the system can read data from any
non-erase-suspended sector. After completing a pro-
gramming operation in the Erase Suspend mode, the
system can once again read array data with the same
exception. See
Erase Suspend/Erase Resume Com-
mands on page 35
for more information.
The system
must
issue the reset command to return
the device to the read (or erase-suspend-read) mode if
DQ5 goes high during an active program or erase op-
eration, or if the device is in the autoselect mode. See
the next section,
Reset Command
, for more informa-
tion.
See also
Requirements for Reading Array Data on
page 11
in
Device Bus Operations
for more informa-
tion. See the table,
Read-Only Operations on page 45
for the read parameters, and
Figure 14
for the timing
diagram.
Reset Command
Writing the reset command resets the device to the
read or erase-suspend-read mode. Address bits are
don’t cares for this command.
The reset command can be written between the se-
quence cycles in an erase command sequence before
erasing begins. This resets the device to the read
mode. Once erasure begins, however, the device ig-
nores reset commands until the operation is complete.
The reset command can be written between the
sequence cycles in a program command sequence
before programming begins. This resets the device to
the read mode. If the program command sequence is
written while the device is in the Erase Suspend mode,
writing the reset command returns the device to the
erase-suspend-read mode. Once programming be-
gins, however, the device ignores reset commands
until the operation is complete.
The reset command can be written between the se-
quence cycles in an autoselect command sequence.
Once in the autoselect mode, the reset command
must be written to return to the read mode. If the de-
vice entered the autoselect mode while in the Erase
Suspend mode, writing the reset command returns the
device to the erase-suspend-read mode.
If DQ5 goes high during a program or erase operation,
writing the reset command returns the device to the
read mode (or erase-suspend-read mode if the device
was in Erase Suspend).
Note that if DQ1 goes high during a Write Buffer Pro-
gramming operation, the system must write the
Write-to-Buffer-Abort Reset command sequence to
reset the device for the next operation.
Autoselect Command Sequence
The autoselect command sequence allows the host
system to read several identifier codes at specific ad-
dresses:
Note:
The device ID is read over three cycles. SA = Sector
Address
Tables
12
and
13
show the address and data require-
ments. This method is an alternative to that shown in
Table 4
, which is intended for PROM programmers
and requires V
ID
on address pin A9. The autoselect
command sequence can be written to an address that
is either in the read or erase-suspend-read mode. The
autoselect command cannot be written while the de-
vice is actively programming or erasing.
The autoselect command sequence is initiated by first
writing two unlock cycles. This is followed by a third
write cycle that contains the autoselect command. The
device then enters the autoselect mode. The system
can read at any address any number of times without
initiating another autoselect command sequence.
The system must write the reset command to return to
the read mode (or erase-suspend-read mode if the de-
vice was previously in Erase Suspend).
Enter Secured Silicon Sector/Exit Secured
Silicon Sector Command Sequence
The Secured Silicon Sector region provides a secured
data area containing an 8-word/16-byte random Elec-
tronic Serial Number (ESN). The system can access
the Secured Silicon Sector region by issuing the
three-cycle Enter Secured Silicon Sector command
sequence. The device continues to access the Se-
cured Silicon Sector region until the system issues the
four-cycle Exit Secured Silicon Sector command se-
quence. The Exit Secured Silicon Sector command
sequence returns the device to normal operation. Ta-
bles
12
and
13
show the address and data require-
ments for both command sequences. See also
Secured
Silicon Sector Flash Memory Region
for further infor-
mation.
Identifier Code
A7:A0
(x16)
00h
01h
0Eh
0Fh
03h
(SA)02h
A6:A-1
(x8)
00h
02h
1Ch
1Eh
06h
(SA)04h
Manufacturer ID
Device ID, Cycle 1
Device ID, Cycle 2
Device ID, Cycle 3
Secured Silicon Sector Factory Protect
Sector Protect Verify
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM29LV640MT100REI | 64 Megabit (4 M x 16-Bit/8 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Boot Sector Flash Memory |
| AM29LV640MT120PCI | 64 Megabit (4 M x 16-Bit/8 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Boot Sector Flash Memory |
| AM29LV640MT120REF | 64 Megabit (4 M x 16-Bit/8 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Boot Sector Flash Memory |
| AM29LV640MT120REI | 64 Megabit (4 M x 16-Bit/8 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Boot Sector Flash Memory |
| AM29LV640MT120RPCF | 64 Megabit (4 M x 16-Bit/8 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Boot Sector Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
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| AM29LV640MU101RPCI | 制造商:Advanced Micro Devices 功能描述: |
| AM29LV640MU90NI | 制造商:Advanced Micro Devices 功能描述: |
| AM29LV640MU90RPC1 | 制造商:Advanced Micro Devices 功能描述: |
| AM29LV640MU90RPCI | 制造商:Advanced Micro Devices 功能描述: |
| AM29LV641DH120REF | 制造商:Spansion 功能描述:Flash Memory IC |
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