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LH28F008SC Datasheet(PDF) 15 Page - Sharp Corporation

Part # LH28F008SC
Description  8M (1M 횞 8) Flash Memory
PDF  38 Pages
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Manufacturer  SHARP [Sharp Corporation]
Direct Link  http://sharp-world.com/
Logo SHARP - Sharp Corporation

LH28F008SC Datasheet(HTML) 15 Page - Sharp Corporation

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8M (1M × 8) Flash Memory
LH28F008SC
15
Figure 7. Automated Byte Write Flowchart
START
BUS
OPERATION
COMMAND
COMMENTS
WRITE 40H
ADDRESS
READ STATUS
REGISTER
SR.7 =
0
NO
1
YES
ERASE SUSPEND
WRITE LOOP
1
1
1
0
0
0
FULL STATUS
CHECK IF DESIRED
BYTE WRITE
COMPLETED
BYTE WRITE
SUCCESSFUL
VPP RANGE
ERROR
DEVICE
PROTECT
ERROR
READ STATUS
REGISTER DATA
(see above)
SUSPEND
BYTE
WRITE?
SR.3 =
SR.1 =
Write
Write
Read
Setup
Byte Write
Byte
Write
Data = 40H
Addr = Location to be written
Data = Data to be written
Addr = Location to be written
Status Register Data
Standy
Check SR.7
1 = WSM Ready
0 = WSM Busy
Repeat for subsequent byte writes.
SR full status check can be done after each byte write or
after a sequence of byte writes.
Write FFH after the last byte write operation to place
device in read array mode.
BUS
OPERATION
COMMAND
FULL STATUS CHECK PROCEDURE
COMMENTS
Standby
Standby
Standby
Check SR.3
1 = VPP Low Detect
Check SR.1
1 = Device Protect Detect
RP = VIH Block Lock-Bit is Set
Only required for systems
implemening lock-bit
configuration
Check SR.4
1 = Data Write Error
SR.4, SR.3 and SR.1 are only cleared by the Clear Status
Register Command in cases where multiple locations are written
before full status is checked.
If error is detected, clear the Status Register before attempting
retry or other error recovery.
28F008SC-7
WRITE BYTE DATA
AND ADDRESS
SR.4 =
BYTE WRITE
ERROR



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