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參數(shù)資料
| 型號： | L033MU01RI |
| 廠商： | Spansion Inc. |
| 英文描述： | 32 Megabit (4 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O⑩ Control |
| 中文描述： | 32兆位（4個M × 8位）的MirrorBit⑩3.0伏特，只有統(tǒng)一部門閃存記憶體與VersatileI /輸出⑩控制 |
| 文件頁數(shù)： | 26/61頁 |
| 文件大?。?/td> | 772K |
| 代理商： | L033MU01RI |
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24
Am29LV033MU
September 12, 2006
D A T A S H E E T
non-erase-suspended sector. After completing a pro-
gramming operation in the Erase Suspend mode, the
system may once again read array data with the same
exception. See the
Erase Suspend/Erase Resume
Commands
section 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
in the
Device Bus Operations
section for more information.
The
Read-Only Operations
table provides the read pa-
rameters, and Figure 13 shows 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 may 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 may 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 may 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 access the manufacturer and device codes,
and determine whether or not a sector is protected.
Table 10 shows the address and data requirements.
This method is an alternative to that shown in Table 3,
which is intended for PROM programmers and re-
quires V
ID
on address pin A9. The autoselect com-
mand sequence may be written to an address that is
either in the read or erase-suspend-read mode. The
autoselect command may not 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
may read at any address any number of times without
initiating another autoselect command sequence:
■
A read cycle at address XX00h returns the manu-
facturer code.
■
Three read cycles at addresses 01h, 0Eh, and 0Fh
return the device code.
■
A read cycle to an address containing a sector
group address (SA), and the address 02h on A7–A0
returns 01h if the sector group is protected, or 00h
if it is unprotected. (Refer to Table 4 for valid sector
addresses).
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 SecSi Sector/Exit SecSi Sector
Command Sequence
The SecSi Sector region provides a secured data area
containing an 16-byte random Electronic Serial Num-
ber (ESN). The system can access the SecSi Sector
region by issuing the three-cycle Enter SecSi Sector
command sequence. The device continues to access
the SecSi Sector region until the system issues the
four-cycle Exit SecSi Sector command sequence. The
Exit SecSi Sector command sequence returns the de-
vice to normal operation. Table 10 shows the address
and data requirements for both command sequences.
See also “SecSi (Secured Silicon) Sector Flash
Memory Region” for further information.
Note that the
ACC function and unlock bypass modes are not avail-
able when the SecSi Sector is enabled.
Byte Program Command Sequence
Programming is a four-bus-cycle operation. The pro-
gram command sequence is initiated by writing two
unlock write cycles, followed by the program set-up
command. The program address and data are written
next, which in turn initiate the Embedded Program al-
gorithm. The system is
not
required to provide further
controls or timings. The device automatically provides
internally generated program pulses and verifies the
programmed cell margin. Table 10 shows the address
and data requirements for the byte program command
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| L033MU01VI | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (4 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O⑩ Control |
| L033MU11RI | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (4 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O⑩ Control |
| L033MU11VI | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (4 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O⑩ Control |
| L033MU12RI | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (4 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O⑩ Control |
| L033MU12VI | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (4 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O⑩ Control |
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