參數(shù)資料
型號(hào)： 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(chǔ)器)
中文描述： 為1Mbit（64Kb的x16插槽，塊擦除）單電源閃存存儲(chǔ)器（1MB閃速存儲(chǔ)器）
文件頁(yè)數(shù)： 5/28頁(yè)
文件大小： 200K
代理商： M29F105B
Operation
E
G
W
A0
A1
A6
A9
A12
A15
DQ0-DQ15
Read Word
V
IL
V
IL
V
IH
A0
A1
A6
A9
A12
A15
Data Output
Write Word
V
IL
V
IH
V
IL
A0
A1
A6
A9
A12
A15
Data Input
Output Disable
V
IL
V
IH
V
IH
X
X
X
X
X
X
Hi-Z
Standby
V
IH
X
X
X
X
X
X
X
X
Hi-Z
Reset
X
X
X
X
X
X
X
X
X
Hi-Z
Block
Protection
(2)
V
IL
V
ID
V
IL
Pulse
X
X
X
V
ID
X
X
X
Blocks
Unprotection
V
ID
V
ID
V
IL
Pulse
X
X
X
V
ID
V
IH
V
IH
X
Block
Protection
Verify
(2,4)
V
IL
V
IL
V
IH
V
IL
V
IH
V
IL
V
ID
A12
A15
Block Protect
Status
(3)
Block
Unprotection
Verify
(2,4)
V
IL
V
IL
V
IH
V
IL
V
IH
V
IH
V
ID
A12
A15
Block Protect
Status
(3)
Notes:
1. X = V
or V
2. Block Address must be given on A12-A15bits.
3. See Table6.
4. Operation performed on programming equipment.
Table4. User Bus Operations
(1)
Code
E
G
W
A0
A1
Other
Addresses
DQ8-DQ15
DQ0-DQ7
Manufact. Code
V
IL
V
IL
V
IH
V
IL
V
IL
Don’t Care
00h
20h
Device Code
V
IL
V
IL
V
IH
V
IH
V
IL
Don’t Care
00h
87h
Table5. Read Electronic Signature(following AS instructionor with A9 = V
ID
)
Code
E
G
W
A0
A1
A12-A15
Other
Addresses
DQ0-DQ7
Protected Block
V
IL
V
IL
V
IH
V
IL
V
IH
Block Address
Don’t Care
01h
Unprotected Block
V
IL
V
IL
V
IH
V
IL
V
IH
Block Address
Don’t Care
00h
Table6. Read Block Protectionwith AS Instruction
Automatic Standby.
After 150ns of bus inactivity
andwhen CMOS levelsare drivingthe addresses,
the chip automatically enters a pseudo-standby
modewhereconsumptionis reducedto theCMOS
standbyvalue, while outputs still drive the bus.
Electronic Signature.
Two codes identifying the
manufacturer andthedevicecanbe read fromthe
memory. The manufacturer’s code for STMi-
croelectronicsis20h,thedevicecodeis87h.These
codes allow programming equipment or applica-
tions to automaticallymatch their interface to the
characteristics of the M29F105B. The Electronic
Signatureis output by a Read operation when the
voltageapplied to A9 is at V
ID
and addressinputs
A1 is Low. The manufacturercode is outputwhen
the Address input A0 is Low and the device code
when this input is High. Other Addressinputs are
ignored. The codes are output on DQ0-DQ7. This
is shown in Table4.
TheElectronicSignaturecan alsobe read, without
raisingA9 toV
ID
, bygivingthememorythe Instruc-
tion AS. The codes are output on DQ0-DQ7 with
DQ8-DQ15 at 00h.
5/28
M29F105B
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