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LH28F020SU-N 데이터 시트보기 (PDF) - Sharp Electronics
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LH28F020SU-N
2M (256K × 8) Flash Memory
Sharp Electronics
LH28F020SU-N Datasheet PDF : 31 Pages
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2M (256K × 8) Flash Memory
LH28F020SU-N
START
WRITE B0H
READ COMPATIBLE
STATUS REGISTER
CSR.7 =
0
1
CSR.6 =
0
1
WRITE FFH
ERASE COMPLETED
READ ARRAY DATA
DONE
NO
READING
YES
WRITE D0H
WRITE FFH
BUS
OPERATION
Write
Read
Standby
COMMAND
COMMENTS
Erase
Suspend
D = B0H
A=X
Q = CSRD
Toggle CE or OE
to update CSRD.
A=X
Check CSR.7
1 = WSM Ready
0 = WSM Busy
Standby
Write
Read
Array
Check CSR.6
1 = Erase Suspended
0 = Erase Completed
D = FFH
A=X
Read
Q = AD
Read must be from
block other than the
one suspended.
Write
Erase
Resume
D = D0H
A=X
See Command Bus Cycle notes for description of codes.
ERASE RESUMED
READ ARRAY DATA
Figure 7. Erase Suspend to Read Array with Compatible Status Register
28F020SUN80-6
11
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