LH28F160S5T-L80 View Datasheet(PDF) - Sharp Electronics
Part Name
Description
Manufacturer
LH28F160S5T-L80
Sharp Electronics
LH28F160S5T-L80 Datasheet PDF : 55 Pages
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LH28F160S5-L/S5H-L
Start
Write 70H
Read
Status Register
SR.7 = 0
1
Write 30H
Write D0H
Read
Status Register
BUS
OPERATION COMMAND
COMMENTS
Write
Read Status Data = 70H
Register Addr = X
Read
Status Register Data
Standby
Check SR.7
1 = WSM Ready
0 = WSM Busy
Write
Full Chip Data = 30H
Erase Setup Addr = X
Write
Full Chip Data = D0H
Erase Confirm Addr = X
Read
Status Register Data
Standby
Check SR.7
1 = WSM Ready
0 = WSM Busy
Full status check can be done after each full chip erase.
Write FFH after the last full chip erase operation to place
device in read array mode.
SR.7 = 0
1
Full Status
Check if Desired
Full Chip Erase
Complete
FULL STATUS CHECK PROCEDURE
Read Status Register
Data (See Above)
1
SR.3 =
0
VPP Range Error
1
SR.4, 5 =
0
1
SR.5 =
0
Full Chip Erase
Successful
Command Sequence
Error
Full Chip Erase Error
BUS
OPERATION COMMAND
COMMENTS
Standby
Standby
Check SR.3
1 = VPP Error Detect
Check SR.4, 5
Both 1 = Command Sequence Error
Standby
Check SR.5
1 = Full Chip Erase Error
SR.5, SR.4, SR.3 and SR.1 are 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.
Fig. 4 Automated Full Chip Erase Flowchart
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