參數(shù)資料
型號： LH28F400SUT-NC80
廠商： Sharp Corporation
英文描述： 4M (512K 】 8, 256K 】 16) Flash Memory
中文描述： 4分（為512k】8，256K】16）快閃記憶體
文件頁數(shù)： 16/35頁
文件大?。?/td> 294K
代理商： LH28F400SUT-NC80
LH28F400SU-NC
4M (512K × 8, 256K × 16) Flash Memory
16
Figure 12. Erase All Unlocked Blocks with Compatible Status Registers
28F400SUT-NC60-10
START
(NOTE)
BUS
OPERATION
COMMAND
COMMENTS
WRITE A7H
CSR.7 =
0
YES
NO
1
0
1
0
1
CSR FULL STATUS
CHECK IF DESIRED
OPERATION
COMPLETE
WRITE D0H
CLEAR CSRD
RETRY/ERROR
RECOVERY
(NOTE)
ERASE
SUCCESSFUL
V
PP
LOW
DETECT
READ CSRD
(see above)
SUSPEND
ERASE
SUSPEND
ERASE LOOP
CSR.4, 5 =
CSR.3 =
Write
Write
Read
Standby
Erase All
Unlocked
Blocks
Confirm
D = A7H
A = X
D = D0H
A = X
Q = CSRD
Toggle CE or OE
to update CSRD
A = X
CSR Full Status Check can be done after Erase All Unlocked
Block, or after a sequence of Erasures.
Write FFH after the last operation to reset
device to read array mode.
See Command Bus Cycle notes for description of codes.
NOTE:
Where power off or RP is set low during erase operation,
1. Clear CSR.3/4/5 and issue Reset WP command,
2. Retry Erase All Unlocked Block Erase command to
erase all blocks, or issue Single Block Erase to
erase all of the unlocked blocks in sequence.
3. Set WP command is issued, if necessary.
Check CSR.7
1 = WSM Ready
0 = WSM Busy
BUS
OPERATION
COMMAND
CSR FULL STATUS CHECK PROCEDURE
COMMENTS
Standby
Standby
Check CSR.4, 5
1 = Erase Error
0 = Erase Successful
Both 1 = Command
Sequence Error
CSR.3, 4, 5 should be cleared, if set, before further attempts
are initiated.
NOTE:
If CSR.3 (VPPS) is set to '1', after clearing CSR.3/4/5,
1. Issue Reset WP command,
2. Retry Erase All Unlocked Block Erase command to erase
all blocks, or issue Single Block Erase to erase all of the
unlocked blocks in sequence.
3. Set WP command is issued, if necessary.
If CSR.3 (VPPS) is set to '0', after clearing CSR.3/4/5,
1. Retry Erase All Unlocked Block Erase command.
READ COMPATIBLE
STATUS REGISTER
Check CSR.3
1 = V
PP
Low Detect
0 = V
PP
OK
相關PDF資料
PDF描述
LH28F400BG-TL85 4M-BIT (256KB x16) SmartVoltage Flash MEMORY
LH28F400SU-NC 4M (512K 】 8, 256K 】 16) Flash Memory
LH28F400SUHN-NC80 4M Flash Memory
LH28F400SUHT-NC80 4Mbit(512Kbit x 8,256 Kbit x 16) 5V Single Voltage Flash Memory
LH28F400SUHE-NC80 4Mbit(512Kbit x 8, 256 Kbit x 16) 5V Single Voltage Flash Memory
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