Datasheet

ADDRESS MODE Operations – Enter and Exit 4-Byte Address Mode

ENTER or EXIT 4-BYTE ADDRESS MODE Command

Both ENTER 4-BYTE ADDRESS MODE and EXIT 4-BYTE ADDRESS MODE commands

share the same requirements.

To enter or exit the 4-byte address mode, the WRITE ENABLE command must be execu-

ted to set the write enable latch bit to 1.

Note: The WRITE ENABLE command is not necessary for line items that enable the ad-

ditional RESET# pin.

S# must be driven LOW. The command must be input on DQn. The effect of the com-

mand is immediate; after the command has been executed, the write enable latch bit is

cleared to 0.

The default address mode is three bytes, and the device returns to the default upon exit-

ing the 4-byte address mode.

ENTER or EXIT QUAD Command

The ENTER or EXIT QUAD (QPI) command is only available for line items that enable

the additional RESET# pin. To initiate this command, the WRITE ENABLE command

must not be executed. S# must be driven LOW, and the command must be input on

DQn. The effect of the command is immediate.

3V, 256Mb: Multiple I/O Serial Flash Memory

ADDRESS MODE Operations – Enter and Exit 4-Byte Address

Mode

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n25q_256mb_65nm.pdf - Rev. W 11/16 EN

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