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)： 3/28頁
文件大?。?/td> 200K
代理商： M29F105B
AI02117
M29F105B
8K WORD BOOT BLOCK
4K WORD PARAMETER BLOCK
4K WORD PARAMETER BLOCK
16K WORDMAIN BLOCK
32K WORDMAIN BLOCK
FFFFh
8000h
7FFFh
4000h
3FFFh
2000h
1FFFh
0000h
3000h
2FFFh
Figure 3. MemoryMap and Block Address Table
Address Range
A15
A14
A13
A12
0000h-1FFFh
0
0
0
X
2000h-2FFFh
0
0
1
0
3000h-3FFFh
0
0
1
1
4000h-7FFFh
0
1
X
X
8000h-FFFFh
1
X
X
X
Table3. M29F105BBlock Address Table
EraseandProgramoperationsarecontrolledbyan
internalProgram/EraseController (P/E.C.). Status
Registerdata outputon DQ7 providesa DataPoll-
ing signal, and
DQ6 and DQ2 provide Toggle
signals to indicate the state of the P/E.C opera-
tions.
MemoryBlocks
The devices feature asymmetricallyblocked archi-
tecture providing system memory integration.The
M29F105B device has an array of 5 blocks, one
Boot Block of 8K Words, two Parameter Blocks of
4K Words, one Main Block of 16K Words and one
MainBlocksof 32KWords.TheM29F105Blocates
theBootBlockstartingat thebottomof thememory
address space. The memory map is shown in
Figure3.Eachblockcanbe erasedseparately,any
combination of blocks can be specified for multi-
block erase or the entire chip maybe erased. The
Erase operations are managed automatically by
the P/E.C. The block erase operation can be sus-
pended in order to read from or program to any
block not being erased, and then resumed. Block
protection provides additional data security. Each
block can be separately protected or unprotected
againstProgram or Erase on programmingequip-
ment.
Bus Operations
The following operations can be performed using
theappropriatebus cycles:Read(Array,Electronic
Signature, Block Protection Status), Write com-
mand, OutputDisable,Standby,Reset, Block Pro-
tection, Unprotection, Protection Verify and
UnprotectionVerify. See Tables.
Command Interface
Instructions,made up of commands written in cy-
cles,can be givento the Program/EraseController
through a Command Interface (C.I.). For added
dataprotection,program or eraseexecutionstarts
after4 or6 cycles.The first,second,fourthand fifth
cycles are used to input Coded cycles to the C.I.
This Coded sequence is the same for all Pro-
gram/Erase Controller instructions. The ’Com-
mand’itself and its confirmation, when applicable,
are given on the third, fourth or sixth cycles. Any
incorrectcommand or any impropercommandse-
quencewill reset the deviceto Read Array mode.
3/28
M29F105B
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