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M25PE40 датащи(PDF) 7 Page - STMicroelectronics

номер детали M25PE40
подробное описание детали  4 Mbit, low voltage, Page-Erasable Serial Flash memory with byte alterability, 50 MHz SPI bus, standard pinout
PDF  60 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M25PE40 датащи(HTML) 7 Page - STMicroelectronics

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M25PE40
Description
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Figure 3.
VFQFPN and SO connections
1.
There is an exposed central pad on the underside of the VFQFPN package. This is pulled, internally, to
VSS, and must not be allowed to be connected to any other voltage or signal line on the PCB.
2.
See Section 12: Package mechanical for package dimensions, and how to identify pin-1.
Figure 1.
Logic diagram - previous T7X
process
Figure 2.
Logic diagram - new T9HX
process
Table 1.
Signal names
Signal name
Function
Direction
C
Serial Clock
Input
D
Serial Data Input
Input
Q
Serial Data Output
Output
S
Chip Select
Input
TSL or W(1)
1.
In the previous T7X process the pin is a Top Sector Lock input whereas in the new T9HX process, the pin
is a Write Protect input (see Figure 1 and Figure 2).
Top Sector Lock or Write Protect
Input
Reset
Reset
Input
VCC
Supply Voltage
VSS
Ground
Reset
AI09704C
S
VCC
M25PE40
VSS
TSL
Q
C
D
Reset
AI13781
S
VCC
M25PE40
VSS
W
Q
C
D
1
AI09703d
2
3
4
8
7
6
5
D
VSS
C
Reset
Q
SVCC
TSL or W
M25PE40



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