MBM29LV160TE70TN Meet Spansion Inc., MBM29LV160TE70TN Datasheet - Page 23

• Manufacturer Part Number: MBM29LV160TE70TN
• Description: Flash Memory Cmos 16m 2m ? 8/1m ? 16 Bit
• Manufacturer: Meet Spansion Inc.

the sectors being erased. Multiple Sector Erase Time; [Sector Program Time (Preprogramming) + Sector Erase
Time] × Number of Sector Erase.
“Embedded Erase
command strings and bus operations.
• Erase Suspend/Resume
The Erase Suspend command allows the user to interrupt a Sector Erase operation and then perform data reads
from or program to a sector not being erased. This command is applicable ONLY during the Sector Erase
operation which includes the time-out period for sector erase. The Erase Suspend command will be ignored if
written during the Chip Erase operation or Embedded Program Algorithm. Writing the Erase Suspend command
during the Sector Erase time-out results in immediate termination of the time-out period and suspension of the
erase operation.
Writing the Erase Resume command resumes the erase operation. The addresses are “DON’T CARES” when
writing the Erase Suspend or Erase Resume commands.
When the Erase Suspend command is written during the Sector Erase operation, the device will take a maximum
of “t
RY/BY output pin and the DQ
of the erasing sector for reading DQ
writes of the Erase Suspend command are ignored.
When the erase operation has been suspended, the device defaults to the erase-suspend-read mode. Reading
data in this mode is the same as reading from the standard read mode except that the data must be read from
sectors that have not been erase-suspended. Successively reading from the erase-suspended sector while the
device is in the erase-suspend-read mode will cause DQ
After entering the erase-suspend-read mode, the user can program the device by writing the appropriate com-
mand sequence for Program. This Program mode is known as the erase-suspend-program mode. Again, pro-
gramming in this mode is the same as programming in the regular Program mode except that the data must be
programmed to sectors that are not erase-suspended. Successively reading from the erase-suspended sector
while the devices are in the erase-suspend-program mode will cause DQ
suspended Program operation is detected by the RY/BY output pin, Data polling of DQ
which is the same as the regular Program operation. Note that DQ
while DQ
To resume the operation of Sector Erase, the Resume command (30h) should be written. Any further writes of
the Resume command at this point will be ignored. Another Erase Suspend command can be written after the
chip has resumed erasing.
• Extended Command
(1) Fast Mode
(2) Fast Programming
SPD
MBM29LV160TE/BE has Fast Mode function. This mode dispenses with the initial two unlock cycles required
in the standard program command sequence writing Fast Mode command into the command register. In
this mode, the required bus cycle for programming is two cycles instead of four bus cycles in standard
program command. The read operation is also executed after exiting this mode. During the Fast mode, do
not write any command other than the Fast program/Fast mode reset command. To exit this mode, it is
necessary to write Fast Mode Reset command into the command register. (Refer to the “Embedded
Programming Algorithm for Fast Mode” in “■FLOW CHART” Extended algorithm.) The V
required even CE = V
During Fast Mode, the programming can be executed with two bus cycles operation. The Embedded Program
Algorithm is executed by writing program set-up command (A0h) and data write cycles (PA/PD). (Refer to
the “Embedded Programming Algorithm for Fast Mode” in “■FLOW CHART” Extended algorithm.)
” to suspend the erase operation. When the devices have entered the erase-suspended mode, the
6
can be read from any address.
TM
Algorithm” in “■FLOW CHART” illustrates the Embedded Erase
MBM29LV160TE
IH
during Fast Mode.
7
bit will be at logic “1”, and DQ
6
and DQ
Retired Product DS05-20883-7E_July 31, 2007
7
to determine if the erase operation has been suspended. Further
2
to toggle. (See the section on DQ
70/90
6
will stop toggling. The user must use the address
/MBM29LV160BE
7
must be read from the Program address
2
to toggle. The end of the erase-
TM
7
, or the Toggle Bit (DQ
Algorithm using typical
CC
2
.)
active current is
70/90
6
)
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