參數(shù)資料
型號: M58LW032C90ZA1F
廠商: 意法半導體
英文描述: 32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
中文描述: 32兆位的2Mb x16插槽,統(tǒng)一座,突發(fā)3V電源快閃記憶體
文件頁數(shù): 12/61頁
文件大?。?/td> 845K
代理商: M58LW032C90ZA1F
M58LW032C
12/61
dicates that the data is not, or will not be valid. Val-
id Data Ready in a high-impedance state indicates
that valid data is or will be available.
Unless Synchronous Burst Read has been select-
ed, Valid Data Ready is high-impedance. It may be
tied to other components with the same Valid Data
Ready signal to create a unique System Ready
signal.
The Valid Data Ready, R, output has an internal
pull-up resistor of approximately 1 M
powered
from V
DDQ
, designers should use an external pull-
up resistor of the correct value to meet the external
timing requirements for Valid Data Ready rising.
Refer to Figure 19.
Status/(Ready/Busy) (STS).
The STS signal is
an open drain output that can be used to identify
the Program/Erase Controller status. It can be
configured in two modes:
I
Ready/Busy - the pin is Low, V
OL
, during
Program and Erase operations and high
impedance when the memory is ready for any
Read, Program or Erase operation.
I
Status - the pin gives a pulsing signal to indicate
the end of a Program or Block Erase operation.
After power-up or reset the STS pin is configured
in Ready/Busy mode. The pin can be configured
for Status mode using the Configure STS com-
mand.
When the Program/Erase Controller is idle, or sus-
pended, STS can float High through a pull-up re-
sistor. The use of an open-drain output allows the
STS pins from several memories to be connected
to a single pull-up resistor (a Low will indicate that
one, or more, of the memories is busy).
STS is not Low during a reset unless the reset was
applied when the Program/Erase controller was
active. Ready/Busy can rise before Reset/Power-
Down rises.
Program/Erase Enable (V
PEN
).
The
Erase Enable input, V
PEN,
is used to protect all
blocks, preventing Program and Erase operations
from affecting their data.
Program/Erase Enable must be kept High during
all Program/Erase Controller operations, other-
wise the operations is not guaranteed to succeed
and data may become corrupt.
V
DD
Supply Voltage.
V
DD
provides the power
supply to the internal core of the memory device.
It is the main power supply for all operations
(Read, Program and Erase).
V
DDQ
Supply Voltage.
V
DDQ
provides the power
supply to the I/O pins and enables all Outputs to
be powered independently from V
DD
. V
DDQ
can be
tied to V
DD
or can use a separate supply.
It is recommended to power-up and power-down
V
DD
and V
DDQ
together to avoid any condition that
would result in data corruption.
V
SS
Ground.
Ground, V
SS,
is the reference for
the core power supply. It must be connected to the
system ground.
V
SSQ
Ground.
V
SSQ
ground is the reference for
the input/output circuitry driven by V
DDQ
. V
SSQ
must be connected to V
SS
.
Note: Each device in a system should have
V
DD
and
V
DDQ
decoupled with a 0.1μF ceramic
capacitor close to the pin (high frequency, in-
herently low inductance capacitors should be
as close as possible to the package). See Fig-
ure 10, AC Measurement Load Circuit.
Program/
相關PDF資料
PDF描述
M58LW032C90ZA1E 32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
M58LW032C90N6T 32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
M58LW032C90N6F 32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
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相關代理商/技術參數(shù)
參數(shù)描述
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M58LW032C90ZA6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
M58LW032C90ZA6E 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
M58LW032C90ZA6F 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
M58LW032C90ZA6T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory