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IS25LE02GG-RHLA2:P-TY Folha de dados(PDF) 116 Page - Integrated Silicon Solution, Inc

Nome de Peças IS25LE02GG-RHLA2:P-TY
Descrição Electrónicos  SERIAL FLASH MEMORY 133MHZ MULTI I/O SPI & QUAD I/O QPI DTR INTERFACE WITH ON-CHIP ECC
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Fabricante Electrônico  ISSI [Integrated Silicon Solution, Inc]
Página de início  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

IS25LE02GG-RHLA2:P-TY Folha de dados(HTML) 116 Page - Integrated Silicon Solution, Inc

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Integrated Silicon Solution, Inc.- www.issi.com
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Rev. A1
10/02/2025
8.35 READ UNIQUE ID NUMBER (RDUID, 4Bh)
The Read Unique ID Number (RDUID) instruction accesses a factory-set read-only 16-byte number that is unique
to the device. The ID number can be used in conjunction with user software methods to help prevent copying or
cloning of a system. The RDUID instruction is instated by driving the CE# pin low and shifting the instruction code
(4Bh) followed by 3 address bytes and dummy cycles (configurable, default is 8 clocks). After which, the 16-byte
ID is shifted out on the falling edge of SCK as shown below.
As a result, the sequence of RDUID instruction is same as FAST READ. RDUID sequence in QPI mode is also
same as FAST READ sequence in QPI mode except for the instruction code. Refer to the FAST READ operation
in QPI mode.
Note: 16 bytes of data will repeat as long as CE# is low and SCK is toggling.
Figure 8.76 RDUID Sequence In SPI Mode
Instruction = 4Bh
Dummy Cycles
CE#
SCK
SI
SO
0
1
...
7
8
9
...
31
32
33
...
39
40
41
...
47
Mode 3
Mode 0
3 Byte Address
Data Out
tV
...
Note: Dummy cycles depends on Read Parameter setting. Detailed information in Table 6.11 Read Dummy Cycles.
Table 8.9 Unique ID Addressing
A[23:16]
A[15:9]
A[8:4]
A[3:0]
XXh
XXh
00h
0h Byte address
XXh
XXh
00h
1h Byte address
XXh
XXh
00h
2h Byte address
XXh
XXh
00h
XXh
XXh
00h
Fh Byte address
Note: XX means “don’t care”.



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