EN25Q64-104FIP datasheet(17/60 Pages) EON

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This Data Sheet may be revised by subsequent versions

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or modifications due to changes in technical specifications.

EN25Q64

Rev. J, Issue Date: 2011/07/07

Table 5. Manufacturer and Device Identification

OP Code

(M7-M0)

(ID15-ID0)

(ID7-ID0)

ABh

16h

90h

1Ch

16h

9Fh

1Ch

3017h

Enable Quad Peripheral Interface mode (EQPI) (38h)

The Enable Quad Peripheral Interface mode (EQPI) instruction will enable the flash device for Quad

SPI bus operation. Upon completion of the instruction, all instructions thereafter will be 4-bit multiplexed

input/output until a power cycle or “ Reset Quad I/O instruction “ instruction, as shown in Figure 5. The

device did not support the Read Data Bytes (READ) (03h), Dual Output Fast Read (3Bh) and Dual

Input/Output FAST_READ (BBh) modes while the Enable Quad Peripheral Interface mode (EQPI) (38h)

turns on.

Figure 5. Enable Quad Peripheral Interface mode Sequence Diagram

Reset Quad I/O (RSTQIO) (FFh)

The Reset Quad I/O instruction resets the device to 1-bit Standard SPI operation. To execute a Reset

Quad I/O operation, the host drives CS# low, sends the Reset Quad I/O command cycle (FFh) then,

drives CS# high. This command can’t be used in Standard SPI mode.

EN25Q64-104FIP Datasheet(PDF) 17 Page - Eon Silicon Solution Inc.