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IS25LE128E-RGLA3:P-TY Datasheet(PDF) 103 Page - Integrated Silicon Solution, Inc

Part # IS25LE128E-RGLA3:P-TY
Description  SERIAL FLASH MEMORY 133/166MHZ MULTI I/O SPI & QUAD I/O QPI DTR INTERFACE WITH ON-CHIP ECC
PDF  197 Pages
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Manufacturer  ISSI [Integrated Silicon Solution, Inc]
Direct Link  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

IS25LE128E-RGLA3:P-TY Datasheet(HTML) 103 Page - Integrated Silicon Solution, Inc

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IS25LE256E/128E
IS25WE256E/128E
Integrated Silicon Solution, Inc.- www.issi.com
103
Rev.A9
03/07/2023
8.21 WRITE FUNCTION REGISTER OPERATION (WRFR, 42h)
The Write Function Register (WRFR) instruction allows the user to disable dedicated RESET# pin or ball on 16-pin
SOIC or 24 ball TFBGA by setting Dedicated RESET# Disable bit to “1”. Also Information Row Lock bits
(IRL3~IRL0) ca
n be set to “1” individually by WRFR instruction in order to lock Information Row.
Since Dedicated RESET# Disable bit and IRL bits are OTP, once they are set to “1”, they cannot be set back to “0”
again
Figure 8.51 Write Function Register Sequence In SPI Mode
Instruction = 42h
CE #
SCK
SI
SO
Data In
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Mode 3
Mode 0
7
3
2
1
0
6
5
4
High Impedence
Figure 8.52 Write Function Register QPI Sequence
42h
0
1
Mode 3
Mode 0
2
3
7:4
3:0
CE#
SCK
IO[3:0]
Data In



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