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M25P20 Datasheet(PDF) 6 Page - STMicroelectronics

Part No. M25P20
Description  2 Mbit, Low Voltage, Serial Flash Memory With 40MHz SPI Bus Interface
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M25P20 Datasheet(HTML) 6 Page - STMicroelectronics

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Summary description
M25P20
6/50
1
Summary description
The M25P20 is a 2 Mbit (256K x 8) Serial Flash Memory, with advanced write protection
mechanisms, 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 4 sectors, each containing 256 pages. Each page is 256 bytes
wide. Thus, the whole memory can be viewed as consisting of 1024 pages, or 262,144
bytes.
The whole memory can be erased using the Bulk Erase instruction, or a sector at a time,
using the Sector Erase instruction.
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages.
ECOPACK® packages are Lead-free and RoHS compliant.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Figure 1.
Logic Diagram
Figure 2.
SO and VFQFPN Connections
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 dimensions, and how to identify pin-1.
AI04080
S
VCC
M25P20
HOLD
VSS
W
Q
C
D
1
AI04081B
2
3
4
8
7
6
5
D
VSS
C
HOLD
Q
SVCC
W
M25P20


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