W25Q32JVSFIQ-TR Datasheet, PDF (61/78 Pages) Winbond – 3V 32M-BIT SERIAL FLASH MEMORY WITH DUAL, QUAD SPI

W25Q32JV
Global Block/Sector Lock (7Eh)
All Block/Sector Lock bits can be set to 1 by the Global Block/Sector Lock instruction. The command must
be issued by driving /CS low, shifting the instruction code “7Eh” into the Data Input (DI) pin on the rising
edge of CLK, and then driving /CS high. A Write Enable instruction must be executed before the device will
accept the Global Block/Sector Lock Instruction (Status Register bit WEL= 1).
Figure 56. Global Block Lock Instruction for SPI Mode (left)
Global Block/Sector Unlock (98h)
All Block/Sector Lock bits can be set to 0 by the Global Block/Sector Unlock instruction. The command
must be issued by driving /CS low, shifting the instruction code “98h” into the Data Input (DI) pin on the
rising edge of CLK, and then driving /CS high. A Write Enable instruction must be executed before the
device will accept the Global Block/Sector Unlock Instruction (Status Register bit WEL= 1).
Figure 57. Global Block Unlock Instruction for SPI Mode
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Publication Release Date: November 18, 2014
Preliminary-Revision A1