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M45PE10 bảng dữ liệu(PDF) 6 Page - STMicroelectronics

tên linh kiện M45PE10
Giải thích chi tiết về linh kiện  1 Mbit, Low Voltage, Page-Erasable Serial Flash Memory With Byte-Alterability and a 25 MHz SPI Bus Interface
PDF  34 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M45PE10 bảng dữ liệu(HTML) 6 Page - STMicroelectronics

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SPI MODES
These devices can be driven by a microcontroller
with its SPI peripheral running in either of the two
following modes:
–
CPOL=0, CPHA=0
–
CPOL=1, CPHA=1
For these two modes, input data is latched in on
the rising edge of Serial Clock (C), and output data
is available from the falling edge of Serial Clock
(C).
The difference between the two modes, as shown
in Figure 5., is the clock polarity when the bus
master is in Stand-by mode and not transferring
data:
–
C remains at 0 for (CPOL=0, CPHA=0)
–
C remains at 1 for (CPOL=1, CPHA=1)
Figure 4. Bus Master and Memory Devices on the SPI Bus
Note: The Write Protect (W) signal should be driven, High or Low as appropriate.
Figure 5. SPI Modes Supported
AI04043B
Bus Master
(ST6, ST7, ST9,
ST10, Others)
SPI Memory
Device
SDO
SDI
SCK
CQD
S
SPI Memory
Device
CQD
S
SPI Memory
Device
CQD
S
CS3
CS2
CS1
SPI Interface with
(CPOL, CPHA) =
(0, 0) or (1, 1)
W
RP
W
RP
W
RP
AI01438B
C
MSB
CPHA
D
0
1
CPOL
0
1
Q
C
MSB



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