參數(shù)資料
型號(hào)： M29W040-100K5R
廠商： 意法半導(dǎo)體
英文描述： Excalibur Low-Noise High-Speed Precision Operational Amplifier 8-PDIP 0 to 70
中文描述： 4兆位512KB的× 8，統(tǒng)一座低電壓?jiǎn)坞娫撮W存
文件頁(yè)數(shù)： 7/31頁(yè)
文件大?。?/td> 205K
代理商： M29W040-100K5R
64K Bytes Block
AI01362B
7FFFFh
6FFFFh
5FFFFh
4FFFFh
3FFFFh
2FFFFh
1FFFFh
0FFFFh
TOP
ADDRESS
70000h
60000h
50000h
40000h
30000h
20000h
10000h
00000h
BOTTOM
ADDRESS
A18
1
1
64K Bytes Block
64K Bytes Block
64K Bytes Block
64K Bytes Block
A17
1
1
A16
1
0
1
1
0
0
1
0
0
0
1
1
1
0
0
0
1
0
0
0
Figure 3. MemoryMap and Block Address Table
Hex Code
Command
10h
Chip Erase Confirm
20h
Power Down
30h
Block Erase Resume/Confirm
50h
Reserved
80h
Set-up Erase
90h
Read Electronic Signature/
Block Protection Status
A0h
Program
B0h
Erase Suspend
F0h
Read Array/Reset
Table7. Commands
Block Protection.
Each uniform block can be
separately protected against Program or Erase.
Block Protectionprovides additionaldata security,
as itdisablesall programor eraseoperations.This
mode is activated when both A9 and G are set to
V
ID
and the block address is applied on A16-A18.
Block Protection is programmed using a Presto F
programlikealgorithm.Protectionisinitiatedonthe
edge ofWfallingto V
IL
.Thenafteradelayof100
μ
s,
the edge of W rising to V
IH
ends the protection
operation.Protectionverify is achievedbybringing
G, E andA6 to V
IL
while W is at V
IH
and A9 at V
ID
.
Undertheseconditions,readingthedataoutputwill
yield 01h if the block defined by the inputs on
A16-A18 is protected. Any attempt to program or
erase a protected block will be ignored by the
device.
Any protected block can be unprotected to allow
updating of bit contents. All blocks must be pro-
tected before an unprotect operation. Block Un-
protect is activated when A9, G and E are at V
ID
.
The addressesinputs A6,A12, A16 mustbe main-
tainedatV
IH
.BlockUnprotectis performedthrough
a Presto F Erase like algorithm. Unprotect is initi-
ated by the edge of W falling to V
IL
. After a delay
of 10ms, the edge of W rising to V
IH
will end the
unprotection operation. Unprotect verify is
achieved by bringing G and E to V
IL
while A6 and
W are at V
IH
and A9 at V
ID
. In these conditions,
reading the output data will yield 00h if the block
defined by the inputs on A16-A18 has been suc-
cessfullyunprotected.AllcombinationsofA16-A18
mustbeaddressedin orderto ensurethatallof the
8 uniform blocks have been unprotected. Block
ProtectionStatusis shownin Table 5.
7/31
M29W040
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參數(shù)描述
M29W040-100K5TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block Low Voltage Single Supply Flash Memory
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M29W040-100K6TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block Low Voltage Single Supply Flash Memory
M29W040-100N1R 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block Low Voltage Single Supply Flash Memory
M29W040-100N1TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block Low Voltage Single Supply Flash Memory
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