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參數(shù)資料
| 型號(hào)： | AM29LV065DU50WHFN |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control |
| 中文描述： | 64兆位（8米× 8位）的CMOS 3.0伏特，只有統(tǒng)一部門閃光控制記憶與VersatileIOTM |
| 文件頁數(shù)： | 25/54頁 |
| 文件大?。?/td> | 613K |
| 代理商： | AM29LV065DU50WHFN |
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February 16, 2006
Am29LV065D
25
COMMAND DEFINITIONS
Writing specific address and data commands or se-
quences into the command register initiates device op-
erations.
Table 10
defines the valid register command
sequences. Writing
incorrect
address and data val-
ues
or writing them in the
improper sequence
may
place the device in an unknown state. A reset com-
mand is required to return the device to reading array
data.
All addresses are latched on the falling edge of WE#
or CE#, whichever happens later. All data is latched on
the rising edge of WE# or CE#, whichever happens
first. Refer to the AC Characteristics section for timing
diagrams.
Reading Array Data
The device is automatically set to reading array data
after device power-up. No commands are required to
retrieve data. The device is ready to read array data
after completing an Embedded Program or Embedded
Erase algorithm.
After the device accepts an Erase Suspend command,
the device enters the erase-suspend-read mode, after
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 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
“VersatileIO
TM
(V
IO
) Control”
in the Device
Bus Operations section for more information. The
Read-Only Operations table provides the read param-
eters, and
Figure 14
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).
Autoselect Command Sequence
The autoselect command sequence allows the host
system to read several identifier codes at specific ad-
dresses:
Table 10
shows the address and data requirements.
The command sequence is an alternative to the high
voltage method shown in
Table 3
. 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.
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-
Identifier Code
Manufacturer ID
Device ID
SecSi Sector Factory Protect
Sector Group Protect Verify
Address
00h
01h
03h
(SA)02h
相關(guān)PDF資料 |
PDF描述 |
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| AM29LV065DU50WHI | 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control |
| AM29LV065DU121REE | 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control |
| AM29LV065DU121REEN | 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control |
| AM29LV065DU121REI | 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control |
| AM29LV065DU121REIN | 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM29LV065DU90REF | 制造商:Spansion 功能描述:NOR Flash Parallel 3V/3.3V 64Mbit 8M x 8bit 90ns 48-Pin TSOP 制造商:Spansion 功能描述:IC SM FLASH 3V 64MB |
| AM29LV065DU90REF | 制造商:Spansion 功能描述:FLASH MEMORY IC |
| AM29LV065DU90REI | 制造商:Spansion 功能描述:NOR Flash Parallel 3.3V 64Mbit 8M x 8bit 90ns 48-Pin TSOP 制造商:Spansion 功能描述:IC, FLASH MEM, 64MBIT, 90NS, 48-TSOP, Memory Type:Flash, Memory Size:64Mbit, Mem |
| AM29LV065DU-90REI | 制造商:Advanced Micro Devices 功能描述:NOR Flash, 8M x 8, 48 Pin, Plastic, TSSOP |
| AM29LV065DU90RWHF | 制造商:Spansion 功能描述: |
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