W25X20BV WINBOND [Winbond], W25X20BV Datasheet - Page 16
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W25X20BV
Manufacturer Part Number
W25X20BV
Description
1M-BIT, 2M-BIT AND 4M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL I/O SPI
Manufacturer
WINBOND [Winbond]
Datasheet
1.W25X20BV.pdf
(51 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
W25X20BVNIG
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Company:
Part Number:
W25X20BVSNIG
Manufacturer:
TOSHIBA
Quantity:
3 000
Part Number:
W25X20BVSNIG
Manufacturer:
WINBOND/华邦
Quantity:
20 000
9.2.3
The Write Enable instruction (Figure 4) sets the Write Enable Latch (WEL) bit in the Status Register to
a 1. The WEL bit must be set prior to every Page Program, Sector Erase, Block Erase, Chip Erase
and Write Status Register instruction. The Write Enable instruction is entered by driving /CS low,
shifting the instruction code “06h” into the Data Input (DI) pin on the rising edge of CLK, and then
driving /CS high.
9.2.4
The Write Disable instruction (Figure 5) 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.
Write Enable (06h)
Write Disable (04h)
Figure 5. Write Disable Instruction Sequence Diagram
Figure 4. Write Enable Instruction Sequence Diagram
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W25X10BV/20BV/40BV