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M25P10-A Datasheet(PDF) 18 Page - STMicroelectronics

Part No. M25P10-A
Description  1 Mbit, Low Voltage, Serial Flash Memory With 25 MHz SPI Bus Interface
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M25P10-A Datasheet(HTML) 18 Page - STMicroelectronics

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Figure 12. Write Status Register (WRSR) Instruction Sequence
Table 7. Protection Modes
Note: 1. As defined by the values in the Block Protect (BP1, BP0) bits of the Status Register, as shown in Table 2.
W
Signal
SRWD
Bit
Mode
Write Protection of the Status
Register
Memory Content
Protected Area(1)
Unprotected Area(1)
10
Software
Protected
(SPM)
Status Register is Writable (if the
WREN instruction has set the WEL
bit)
The values in the SRWD, BP1 and
BP0 bits can be changed
Protected against
Page Program, Sector
Erase and Bulk Erase
Ready to accept Page
Program and Sector
Erase instructions
00
11
01
Hardware
Protected
(HPM)
Status Register is Hardware write
protected
The values in the SRWD, BP1 and
BP0 bits cannot be changed
Protected against
Page Program, Sector
Erase and Bulk Erase
Ready to accept Page
Program and Sector
Erase instructions
C
D
AI02282D
S
Q
2
1
3456789 10 11 12 13 14 15
High Impedance
Instruction
Status
Register In
0
765432
0
1
MSB


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