參數(shù)資料
型號(hào): M29W004T
廠商: 意法半導(dǎo)體
英文描述: 4Mbit (512Kb x8, Boot Block) Low Voltage Single Supply Flash Memory(4Mb閃速存儲(chǔ)器)
中文描述: 的4Mb(512KB的× 8,引導(dǎo)塊)低電壓?jiǎn)坞娫撮W存(4Mb的閃速存儲(chǔ)器)
文件頁(yè)數(shù): 10/30頁(yè)
文件大?。?/td> 199K
代理商: M29W004T
DQ
Name
Logic Level
Definition
Note
7
Data
Polling
’1’
Erase Complete or erase
block in Erase Suspend
Indicates the P/E.C. status, check during
Program or Erase, and on completion
before checking bits DQ5 for Program or
Erase Success.
’0’
Erase On-going
DQ
Program Complete or data
of non erase block during
Erase Suspend
DQ
Program On-going
6
Toggle Bit
’-1-0-1-0-1-0-1-’
Erase or Program On-going
Successive reads outputcomplementary
data on DQ6 while Programming orErase
operations are on-going. DQ6 remains at
constant level when P/E.C. operations are
completed or Erase Suspend is
acknowledged.
DQ
Program Complete
’-1-1-1-1-1-1-1-’
Erase Complete or Erase
Suspend on currently
addressed block
5
Error Bit
’1’
Program or Erase Error
This bit is set to ’1’in the case of
Programming or Erase failure.
’0’
Program or Erase On-going
4
Reserved
3
Erase
Time Bit
’1’
Erase TimeoutPeriod Expired
P/E.C. Erase operation has started. Only
possible command entry isErase Suspend
(ES).
’0’
Erase TimeoutPeriod
On-going
An additional block to be erased in parallel
can be entered to the P/E.C.
2
Toggle Bit
’-1-0-1-0-1-0-1-’
Chip Erase, Erase or Erase
Suspend on the currently
addressed block.
Erase Error due to the
currently addressedblock
(when DQ5 = ’1’).
Indicates the erase status and allows to
identify the erased block
1
Program on-going,Erase
on-going on another block or
Erase Complete
DQ
Erase Suspend read on
non Erase Suspend block
1
Reserved
0
Reserved
Notes:
Logic level ’1’is High, ’0’ is Low.-0-1-0-0-0-1-1-1-0- represent bit value in successive Read operations.
Table 9. StatusRegister Bits
10/30
M29W004T, M29W004B
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