Micron M25P16 Serial Flash Embedded Memory
WRITE DISABLE
WRITE DISABLE
The WRITE DISABLE command resets the write enable latch (WEL) bit.
The WRITE DISABLE command is entered by driving chip select (S#) LOW, sending the
command code, and then driving S# HIGH.
The WEL bit is reset under the following conditions:
• Power-up
• Completion of any ERASE operation
• Completion of any PROGRAM operation
• Completion of any WRITE STATUS REGISTER operation
• Completion of WRITE DISABLE operation
Figure 9: WRITE DISABLE Command Sequence
0
1
2
3
4
C
S#
Command bits
DQ[0]
0
0
0
0
0
MSB
DQ1
High-Z
5
6
1
0
7
LSB
0
Don’t Care
PDF: 09005aef8456656c
m25p16.pdf - Rev. J 1/18 EN
22
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