w25x10bl Winbond Electronics Corp America, w25x10bl Datasheet - Page 17

• Manufacturer Part Number: w25x10bl
• Description: 1m-bit, 2m-bit And 4m-bit 2.5v Serial Flash Memory With 4kb Sectors And Dual I/o Spi
• Manufacturer: Winbond Electronics Corp America

W25X10BL/20BL/40BL
9.2.5
Write Disable (04h)
The Write Disable instruction (Figure 6) resets the Write Enable Latch (WEL) bit in the Status Register
to a 0. The Write Disable instruction is entered by driving /CS low, shifting the instruction code “04h”
into the DIO pin and then driving /CS high. Note that the WEL bit is automatically reset after Power-up
and upon completion of the Write Status Register, Page Program, Sector Erase, Block Erase and Chip
Erase instructions.
Figure 6. Write Disable Instruction Sequence Diagram
Publication Release Date: October 14, 2009
- 17 -
Preliminary -- Revision A