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IS25LE02GG-RHLA2:P-TY 数据表(PDF) 161 Page - Integrated Silicon Solution, Inc

部件名 IS25LE02GG-RHLA2:P-TY
功能描述  SERIAL FLASH MEMORY 133MHZ MULTI I/O SPI & QUAD I/O QPI DTR INTERFACE WITH ON-CHIP ECC
PDF  187 Pages
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制造商  ISSI [Integrated Silicon Solution, Inc]
网页  http://www.issi.com
标志 ISSI - Integrated Silicon Solution, Inc

IS25LE02GG-RHLA2:P-TY 数据表(HTML) 161 Page - Integrated Silicon Solution, Inc

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IS25LE02GG
IS25WE02GG
Integrated Silicon Solution, Inc.- www.issi.com
161
Rev. A1
10/02/2025
8.62 PROGRAM PASSWORD OPERATION (PGPWD, E8h)
Before the Program Password (PGPWD) command can be accepted by the device, a Write Enable (WREN)
command must be issued and decoded by the device which sets the Write Enable Latch (WEL) to enable the
PGPWD operation. The password can only be programmed before the Password Mode is selected by programming
the Password Protection Mode bit to “0” in the ASP Register (ASP[2]). After the Password Protection Mode is
selected the PGPWD command is ignored.
The PGPWD command is entered by driving CE# low, followed by the instruction code and the password data
bytes, least significant byte first, most significant bit of each byte first. The password is 64bits in length.
CE# must be driven high after the 64th bit of data has been latched. If not, the PGPWD command is not executed.
As soon as CE# is driven high, the PGPWD operation is initiated. While the PGPWD operation is in progress, the
Status Register or Extended Read Register may be read to check the value of the Write In Progress (WIP) bit. The
WIP bit is “1” during the PGPWD operation, and is “0” when it is completed. When the PGPWD operation is
completed, the Write Enable Latch (WEL) is set to “0”.
Figure 8.139 Program Password Sequence In SPI Mode
Instruction = E8h
CE #
SCK
SI
SO
0
1
...
7
8
9
...
15
16
17
...
23
...
64
65
...
Mode 3
Mode 0
7
15
14
8
6
...
0
63
62
56
...
...
...
71
1st byte Data In
2nd byte Data In
...
8th byte Data In
High Impedence
Figure 8.140 Program Password Sequence In QPI Mode
E8h
CE#
SCK
IO[3:0]
0
1
Mode 3
Mode 0
2
3
4
5
1st byte
Data In
2nd byte
Data In
...
8th byte
Data In
...
16
17



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