FOR MOBILE APPLICATIONS
W25Q256FV
Publication Release Date: May 13, 2012
- 38 - Preliminary - Revision M1
8.2.11
Read Data with 4-Byte Address (13h)
The Read Data with 4-Byte Address instruction is similar to the Read Data (03h) instruction. Instead of 24-
bit address, 32-bit address is needed following the instruction code 13h. No matter the device is operating
in 3-Byte Address Mode or 4-byte Address Mode, the Read Data with 4-Byte Address instruction will
always require 32-bit address to access the entire 256Mb memory.
The Read Data with 4-Byte Address instruction sequence is shown in Figure 15. If this instruction is issued
while an Erase, Program or Write cycle is in process (BUSY=1) the instruction is ignored and will not have
any effects on the current cycle. The Read Data with 4-Byte Address instruction allows clock rates from
D.C. to a maximum of f
R
(see AC Electrical Characteristics).
The Read Data with 4-Byte Address (13h) instruction is only supported in Standard SPI mode.
Figure 15. Read Data with 4-Byte Address Instruction (SPI Mode only)
