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IS25LE01G-RILA3 Datasheet(PDF) 160 Page - Integrated Silicon Solution, Inc

No. de pieza IS25LE01G-RILA3
Descripción Electrónicos  SERIAL FLASH MEMORY 133/104MHZ MULTI I/O SPI & QUAD I/O QPI DTR INTERFACE WITH ON-CHIP ECC
PDF  186 Pages
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Fabricante Electrónico  ISSI [Integrated Silicon Solution, Inc]
Página de inicio  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

IS25LE01G-RILA3 Datasheet(HTML) 160 Page - Integrated Silicon Solution, Inc

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IS25LE01G
IS25WE01G
Integrated Silicon Solution, Inc.- www.issi.com
160
Rev. A6
01/14/2025
8.59 SET FREEZE BIT OPERATION (SFRZ, 91h)
The Set FREEZE Bit (SFRZ) command sets FREEZE (PPB Lock Register bit7) to one. Please refer to the section
6.6.3 PPB Lock Register for more detail. Before the SFRZ 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) in the
Status Register to enable any write operations.
The SFRZ command is entered by driving CE# low, followed by the instruction code. CE# must be driven high after
the eighth bit of instruction has been latched in. If not, the SFRZ command is not executed. As soon as CE# is
driven high, the SFRZ operation is initiated. While the SFRZ operation is in progress, the Status Register may still
be read to check the value of the Write
In Progress (WIP) bit. The WIP bit is “1” during the SFRZ operation, and is
“0” when it is completed. When the SFRZ operation is completed, the WEL is set to “0”.
Figure 8.130 Set FREEZE Bit Sequence In SPI Mode
Instruction = 91h
CE#
SCK
SI
0
1
2
3
4
5
6
7
Mode 3
Mode 0
SO
High Impedance
Figure 8.131 Set FREEZE Bit Sequence In QPI Mode
91h
CE#
SCK
IO[3:0]
0
1
Mode 3
Mode 0



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