E28F001BX-T90 데이터 시트보기 (PDF) - Intel
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E28F001BX-T90 Datasheet PDF : 33 Pages
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28F001BX-T 28F001BX-B
Bus
Operation
Command
Comments
Write
Write
Erase
Setup
Erase
Data e 20H
Address e Within Block to be erased
Data e D0H
Address e Within Block to be erased
Read
Status Register Data
Toggle OE or CE to update Status
Register
Standby
Check SR 7
1 e Ready 0 e Busy
Repeat for subsequent blocks
Full status check can be done after each block or after a sequence of
blocks
Write FFH after the last block erase operation to reset the device to
Read Array Mode
Bus
Operation
Command
Comments
Standby
Check SR 3
1 e VPP Low Detect
Standby
Check SR 4 5
Both 1 e Command Sequence Error
290406 – 8
Standby
Check SR 5
1 e Block Erase Error
SR 3 MUST be cleared if set during an erase attempt before further
attempts are allowed by the Write State Machine
SR 5 is only cleared by the Clear Status Register Command in cases
where multiple blocks are erased before full status is checked
If error is detected clear the Status Register before attempting retry or
other error recovery
Figure 10 28F001BX Block Erase Flowchart
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