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M50FW080 Datasheet(PDF) 14 Page - STMicroelectronics

Part # M50FW080
Description  8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory
PDF  56 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M50FW080 Datasheet(HTML) 14 Page - STMicroelectronics

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Signal descriptions
M50FW080
14/55
2.1.10
Write Protect (WP)
The Write Protect input is used to prevent the Main Blocks (Blocks 0 to 14) from being
changed. When Write Protect, WP, is set Low, VIL, Program and Block Erase operations in
the Main Blocks have no effect, regardless of the state of the Lock Register. When Write
Protect, WP, is set High, VIH, the protection of the Block determined by the Lock Register.
The state of Write Protect, WP, does not affect the protection of the Top Block (Block 15).
Write Protect, WP, must be set prior to a Program or Block Erase operation is initiated and
must not be changed until the operation completes or unpredictable results may occur. Care
should be taken to avoid unpredictable behavior by changing WP during Program or Erase
Suspend.
2.1.11
Reserved for Future Use (RFU)
These pins do not have assigned functions in this revision of the part. They must be left
disconnected.
Table 3.
Block addresses
Size
(Kbytes)
Address Range
Block Number
Block Type
64
F0000h-FFFFFh
15
Top Block
64
E0000h-EFFFFh
14
Main Block
64
D0000h-DFFFFh
13
Main Block
64
C0000h-CFFFFh
12
Main Block
64
B0000h-BFFFFh
11
Main Block
64
A0000h-AFFFFh
10
Main Block
64
90000h-9FFFFh
9
Main Block
64
80000h-8FFFFh
8
Main Block
64
70000h-7FFFFh
7
Main Block
64
60000h-6FFFFh
6
Main Block
64
50000h-5FFFFh
5
Main Block
64
40000h-4FFFFh
4
Main Block
64
30000h-3FFFFh
3
Main Block
64
20000h-2FFFFh
2
Main Block
64
10000h-1FFFFh
1
Main Block
64
00000h-0FFFFh
0
Main Block



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