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25LC080CT-I/MS Datasheet(PDF) 9 Page - Microchip Technology

Part # 25LC080CT-I/MS
Description  8K SPI Bus Serial EEPROM
PDF  28 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

25LC080CT-I/MS Datasheet(HTML) 9 Page - Microchip Technology

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© 2009 Microchip Technology Inc.
DS22151A-page 9
25XX080C/D
2.4
Write Enable (WREN) and Write
Disable (WRDI)
The 25XX080C/D contains a write enable latch. See
Table 2-4 for the Write-Protect Functionality Matrix.
This latch must be set before any write operation will be
completed internally. The WREN instruction will set the
latch, and the WRDI will reset the latch.
The following is a list of conditions under which the
write enable latch will be reset:
• Power-up
• WRDI instruction successfully executed
• WRSR instruction successfully executed
• WRITE instruction successfully executed
FIGURE 2-4:
WRITE ENABLE SEQUENCE (WREN)
FIGURE 2-5:
WRITE DISABLE SEQUENCE (WRDI)
SCK
0
2
34
56
7
1
SI
High-Impedance
SO
CS
01
00
00
0
1
SCK
0
2345
67
1
SI
High-Impedance
SO
CS
01
00
00
0
10



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