lh28f004su-nc Sharp Microelectronics of the Americas, lh28f004su-nc Datasheet - Page 11

• Manufacturer Part Number: lh28f004su-nc
• Description: 512k Flash Memory
• Manufacturer: Sharp Microelectronics of the Americas

4M (512K × 8) Flash Memory
READ COMPATIBLE
READ ARRAY DATA
STATUS REGISTER
ERASE RESUMED
WRITE FFH
WRITE D0H
WRITE B0H
READING
CSR.7 =
CSR.6 =
START
DONE
YES
1
1
Figure 7. Erase Suspend to Read Array with Compatible Status Register
0
NO
0
ERASE COMPLETED
READ ARRAY DATA
WRITE FFH
See Command Bus Cycle notes for description of codes.
OPERATION
Standby
Standby
Read
Read
Write
Write
Write
BUS
COMMAND
Resume
Suspend
Erase
Erase
Read
Array
D = D0H
A = X
D = B0H
A = X
Q = CSRD
Toggle CE or OE
to update CSRD.
A = X
Check CSR.7
1 = WSM Ready
0 = WSM Busy
Check CSR.6
1 = Erase Suspended
0 = Erase Completed
D = FFH
A = X
Q = AD
Read must be from
block other than the
one suspended.
COMMENTS
LH28F004SU-NC
28F004SUT-NC80-6
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