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M25P40 датащи(PDF) 5 Page - STMicroelectronics

номер детали M25P40
подробное описание детали  4 Mbit, Low Voltage, Serial Flash Memory With 40MHz SPI Bus Interface
PDF  40 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M25P40 датащи(HTML) 5 Page - STMicroelectronics

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M25P40
SUMMARY DESCRIPTION
The M25P40 is a 4 Mbit (512K x 8) Serial Flash
Memory, with advanced write protection mecha-
nisms, accessed by a high speed SPI-compatible
bus.
The memory can be programmed 1 to 256 bytes at
a time, using the Page Program instruction.
The memory is organized as 8 sectors, each con-
taining 256 pages. Each page is 256 bytes wide.
Thus, the whole memory can be viewed as con-
sisting of 2048 pages, or 524,288 bytes.
The whole memory can be erased using the Bulk
Erase instruction, or a sector at a time, using the
Sector Erase instruction.
Figure 2. Logic Diagram
Figure 3. SO and VDFPN Connections
Note: 1. There is an exposed die paddle on the underside of the
MLP8 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 PACKAGE MECHANICAL section for package di-
mensions, and how to identify pin-1.
Table 1. Signal Names
AI04090
S
VCC
M25P40
HOLD
VSS
W
Q
C
D
1
AI04091B
2
3
4
8
7
6
5
D
VSS
C
HOLD
Q
SVCC
W
M25P40
C
Serial Clock
D
Serial Data Input
Q
Serial Data Output
S
Chip Select
W
Write Protect
HOLD
Hold
VCC
Supply Voltage
VSS
Ground



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