參數(shù)資料
型號： M29F105B
廠商： 意法半導(dǎo)體
英文描述： 1Mbit (64Kb x16, Block Erase) Single Supply Flash Memory(1Mb閃速存儲器)
中文描述： 為1Mbit（64Kb的x16插槽，塊擦除）單電源閃存存儲器（1MB閃速存儲器）
文件頁數(shù)： 9/28頁
文件大?。?/td> 200K
代理商： M29F105B
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 forProgram 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 output complementary
data on DQ6 while Programming or Erase
operations are on-going. DQ6 remains at
constant level when P/E.C. operationsare
completed orErase 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 Timeout Period Expired
P/E.C. Erase operationhas started. Only
possible command entry is Erase Suspend
(ES).
’0’
Erase Timeout Period
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 addressed block
(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 EraseSuspend 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.
Table10. StatusRegisterBits
Program (PG) Instruction.
This instruction uses
four write cycles. The Program command A0h is
writtento address555h on the thirdcycle aftertwo
Codedcycles. Afourth write operationlatchesthe
Addressonthefallingedge of W orE and theData
to be written on the rising edge and starts the
P/E.C.Read operationsoutputthe StatusRegister
bits after the programming has started. Memory
programming ismade onlyby writing ’0’in placeof
’1’.StatusbitsDQ6andDQ7determineif program-
mingison-goingandDQ5allowsverificationof any
possible error. Programming at an address not in
blocks being erased is also possible during erase
suspend. In this case, DQ2 will toggle at the ad-
dressbeing programmed.
9/28
M29F105B
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