參數(shù)資料
型號: M29W040B90K6E
廠商: 意法半導(dǎo)體
英文描述: 4 Mbit 512Kb x8, Uniform Block Low Voltage Single Supply Flash Memory
中文描述: 4兆位512KB的× 8,統(tǒng)一座低電壓單電源閃存
文件頁數(shù): 2/20頁
文件大?。?/td> 161K
代理商: M29W040B90K6E
M29W040B
2/20
Figure 2. PLCC Connections
AI02951
A
A13
A8
A9
A11
G
A10
E
D
17
A1
A0
DQ0
D
D
D
D
A7
A6
A5
A4
A3
A2
9
W
1
A
DQ7
A
A14
32
A
V
M29W040B
A
D
25
V
Figure 3. TSOP Connections
A1
A2
A0
DQ0
A7
A6
A5
A4
A3
A13
A14
A17
W
VCC
A10
E
A8
A9
DQ7
DQ6
A11
G
DQ5
DQ4
DQ1
DQ2
DQ3
VSS
A16
A15
A12
A18
AI02952
M29W040B
8
9
1
16
17
24
25
32
Table 1. Signal Names
A0-A18
Address Inputs
DQ0-DQ7
Data Inputs/Outputs
E
Chip Enable
G
Output Enable
W
Write Enable
V
CC
Supply Voltage
V
SS
Ground
SUMMARY DESCRIPTION
The M29W040B is a 4 Mbit (512Kb x8) non-vola-
tile memory that can be read, erased and repro-
grammed. These operations can be performed
using a single low voltage (2.7 to 3.6V) supply. On
power-up the memory defaults to its Read mode
where it can be read in the same way as a ROM or
EPROM. The M29W040B is fully backward com-
patible with the M29W040.
The memory is divided into blocks that can be
erased independently so it is possible to preserve
valid data while old data is erased. Each block can
be protected independently to prevent accidental
Program or Erase commands from modifying the
memory. Program and Erase commands are writ-
ten to the Command Interface of the memory. An
on-chip Program/Erase Controller simplifies the
process of programming or erasing the memory by
taking care of all of the special operations that are
required to update the memory contents. The end
of a program or erase operation can be detected
and any error conditions identified. The command
set required to control the memory is consistent
with JEDEC standards.
Chip Enable, Output Enable and Write Enable sig-
nals control the bus operation of the memory.
They allow simple connection to most micropro-
cessors, often without additional logic.
The memory is offered in TSOP32 (8 x 20mm),
TSOP32 (8 x 14mm) and PLCC32 packages and
it is supplied with all the bits erased (set to ‘1’).
In order to meet environmental requirements, ST
offers the M29W040B in ECOPACK
packages.
ECOPACK packages are Lead-free. The category
of second Level Interconnect is marked on the
package and on the inner box label, in compliance
with JEDEC Standard JESD97. The maximum rat-
ings related to soldering conditions are also
marked on the inner box label.
ECOPACK is an ST trademark. ECOPACK speci-
fications are available at: www.st.com.
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參數(shù)描述
M29W040B90K6F 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
M29W040B90K6T 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
M29W040B90N1 功能描述:閃存 4M (512Kx8) 90ns RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel
M29W040B90N1E 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
M29W040B90N1F 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