lrs1386 Sharp Microelectronics of the Americas, lrs1386 Datasheet - Page 50
lrs1386
Manufacturer Part Number
lrs1386
Description
Flash Memory
Manufacturer
Sharp Microelectronics of the Americas
Datasheet
1.LRS1386.pdf
(114 pages)
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A reset time (t
high until outputs are valid. Likewise, the device has a
wake time (t
the CUI are recognized.
Erase operation erases one block or all blocks.
Programming is executed in either one word increments
or by page sized increments using the high speed program
page buffers. These operations use an industry standard
set of CUI command sequences. Suspend commands exist
for both the erase and program operations to permit the
system to interrupt an erase or program operation in
progress to enable the access to another memory location
NOTES:
1. "X" denotes the operation available.
2. Configurative Partition Dual Work Restrictions:
PARTITION IS:
Full Chip Erase
Word Program
Read ID/OTP
OTP Program
Status register reflects partition state, not WSM(Write State Machine) state - this allows a status register for each partition.
Only one partition can be erased or programmed at a time - no command queuing except page buffer program.
Commands must be written to an address within the block targeted by that command.
It is not possible to do burst reads that cross partition boundaries.
Read Query
Page Buffer
Block Erase
Block Erase
Read Status
Read Array
Program
Suspend
Suspend
IF ONE
Program
PHWL
PHQV
, t
Array
Read
PHEL
) is required from RST# switching
X
X
X
X
X
X
X
X
X
) from RST#-high until writes to
Table 2. Simultaneous Operation Modes Allowed with Four Planes
ID/OTP
Read
Appendix to Spec No.: MFM2-J13302
X
X
X
X
X
X
X
X
X
THEN THE MODES ALLOWED IN THE OTHER PARTITION IS:
Status
Read
X
X
X
X
X
X
X
X
X
X
X
Query
Read
X
X
X
X
X
X
X
X
X
Program
FUM00701
Word
X
X
X
X
X
Model No.: LRS1386
Program
Buffer
Page
in the same partition. Nested suspend is also supported.
This allows the software to suspend an erase in one
partition, start programming in a second partition,
suspend programming in the second partition, then read
from the second partition. After reading from the second
partition, resume the suspended program in the second
partition, then resume the suspended erase in the first
partition.
Figure 1 shows the block diagram for LH28F320BX/
LH28F640BX series. The example of pin descriptions are
explained in Table 3.1 and Table 3.2.
X
X
X
X
X
Program
OTP
X
March 2, 2001
Block
Erase
X
X
X
X
(1, 2)
Full Chip
Erase
X
Program
Suspend
X
X
X
X
X
Rev. 2.20
Suspend
Block
Erase
4
X
X
X
X
X
X
X
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