參數(shù)資料
型號(hào): M29W004B
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)
文件頁數(shù): 2/30頁
文件大?。?/td> 199K
代理商: M29W004B
VSS
E
A0
DQ1
DQ0
DQ2
A7
A6
A1
A4
A3
A2
A11
A9
A8
W
RP
A17
VSS
A14
A13
A15
DQ7
DQ6
A16
G
NC
NC
A10
DQ5
DQ4
DQ3
NC
VCC
VCC
RB
A18
NC
AI02064
M29W004T
M29W004B
10
11
1
20
21
30
31
40
A12
A5
Figure 2. TSOPPin Connections
A0-A18
Address Inputs
DQ0-DQ7
Data Input/Outputs, Command Inputs
E
Chip Enable
G
Output Enable
W
Write Enable
RP
Reset / Block TemporaryUnprotect
RB
Ready/Busy Output
V
CC
Supply Voltage
V
SS
Ground
Table 1. SignalNames
Warning:
NC = Not Connected.
Instructions for Read/Reset,Auto Select for read-
ing the Electronic Signature or Block Protection
status,Programming,BlockandChipErase,Erase
Suspend and Resume are writtento the device in
cyclesofcommandstoa CommandInterfaceusing
standardmicroprocessor write timings.
The device is offered in TSOP40 (10 x 20mm)
package.
Organisation
TheM29W004is organisedas 512Kx8.Themem-
ory uses the address inputs A0-A18 and the Data
Input/Outputs DQ0-DQ7. Memory control is pro-
videdbyChipEnableE,OutputEnableGandWrite
Enable W inputs.
AReset/BlockTemporaryUnprotection RPtri-level
input provides a hardwarereset when pulled Low,
andwhenheldHigh(at V
ID
) temporarily unprotects
blocks previously protected allowing them to be
programedand erased.EraseandProgramopera-
tions are controlled by an internal Program/Erase
Controller(P/E.C.).StatusRegisterdata outputon
DQ7provides a Data Polling signal,and DQ6 and
DQ2provide Togglesignalsto indicatethe stateof
the P/E.C operations. A Ready/Busy RB output
indicatesthe completionof the internalalgorithms.
DESCRIPTION
(Cont’d)
Symbol
Parameter
Value
Unit
T
A
Ambient Operating Temperature
(3)
–40 to85
°
C
T
BIAS
Temperature Under Bias
–50 to125
°
C
T
STG
V
IO(2)
Storage Temperature
–65 to150
°
C
Input or Output Voltages
–0.6 to 5
V
V
CC
Supply Voltage
–0.6 to 5
V
V
(A9, E, G, RP)
(2)
A9, E, G, RP Voltage
–0.6 to 13.5
V
Notes:
1. Except for therating ”O(jiān)perating Temperature Range”, stresses above those listed in theTable ”AbsoluteMaximum Ratings”
may cause permanentdamage to thedevice. These are stress ratings only and operation of the device at these or any other
conditions above those indicated in the Operatingsections of this specification is not implied.Exposure to Absolute Maximum
Rating conditions for extendedperiods may affectdevice reliability.Refer also tothe STMicroelectronics SURE Program and other
relevant quality documents.
2. Minimum Voltagemay undershoot to –2V during transitionand for less than 20ns.
3. Depends on range.
Table2. Absolute MaximumRatings
(1)
2/30
M29W004T, M29W004B
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