lh28f004su-nc Sharp Microelectronics of the Americas, lh28f004su-nc Datasheet - Page 13
lh28f004su-nc
Manufacturer Part Number
lh28f004su-nc
Description
512k Flash Memory
Manufacturer
Sharp Microelectronics of the Americas
Datasheet
1.LH28F004SU-NC.pdf
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4M (512K × 8) Flash Memory
NOTES:
1. Use Reset-Write-Protect flowchart. Enable Write/Erase operation to all blocks.
2. Use Block-Erase flowchart. Erasing a block clears any previously established lockout for that block.
3. Use Set-Write-Protect flowchart. This step re-implements protection to locked blocks.
4. Use Word/Byte-Write or 2-Byte-Write flowchart sequences to write data.
5. Use Block-Lock flowchart to write lock bit if desired.
FLOW TO REWRITE DATA
WRITE NEW DATA
RELOCK BLOCK
ERASE BLOCK
OPERATION
COMPLETE
RESET WP
TO BLOCK
(NOTE 5)
(NOTE 1)
(NOTE 4)
(NOTE 2)
(NOTE 3)
SET WP
START
Figure 9. Updating Data in a Locked Block
FLOW TO ADD DATA
DATA TO BLOCK
WRITE MORE
OPERATION
COMPLETE
RESET WP
(NOTE 1)
(NOTE 4)
(NOTE 3)
SET WP
START
LH28F004SU-NC
228F004SUT-NC80-8
13
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