W25Q256JVEIQ-TR Datasheet, PDF (56/92 Pages) Winbond – 3V 256M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI

W25Q256JV
8.2.28 Sector Erase with 4-Byte Address (21h)
The Sector Erase with 4-Byte Address instruction is similar to the Sector Erase instruction except that it
requires 32-bit address instead of 24-bit address. No matter the device is operating in 3-Byte Address
Mode or 4-byte Address Mode, the Sector Erase with 4-Byte Address instruction will always require 32-bit
address to access the entire 256Mb memory.
/CS
CLK
DI
(IO₀)
DO
(IO₁)
Mode 3
0
Mode 0
* ^{= MSB}
123456789
37 38 39
Instruction (21h)
32-Bit Address
31 30
*
High Impedance
210
Mode 3
Mode 0
Figure 37. Sector Erase with 4-Byte Address Instruction
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