EN25QH256 Datasheet, PDF(20/74 Page) Eon Silicon Solution Inc. – 256 Megabit Serial Flash Memory with 4Kbyte Uniform Sector

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EN25QH256 Datasheet, PDF (20/74 Pages) Eon Silicon Solution Inc. – 256 Megabit Serial Flash Memory with 4Kbyte Uniform Sector

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EN25QH256

Table 4A. Instruction Set

Instruction Name

Byte 1

Code

Byte 2

Byte 3

EQPI

RSTQIO(2)

RSTEN

RST(1)

Write Enable

Write Disable / Exit

OTP mode

Read Status

Read Information

Write Status

Enter 4-byte mode

Exit 4-byte mode

Enter High Bank

Latch Mode

Exit High Bank

Latch Mode

Page Program

Sector Erase

Block Erase

Chip Erase

38h

FFh

66h

99h

06h

04h

05h

(S7-S0)(3)

2Bh

(S7-S0)(3)

01h

S7-S0

B7h

E9h

67h

98h

02h (8)

20h (8)

D8h (8)

C7h/ 60h

A23-A16

A15-A8

Deep Power-down B9h

Release from Deep

Power-down, and

read Device ID

ABh

Release from Deep

Power-down

Manufacturer/

Device ID

90h

Read Identification 9Fh

dummy

(M7-M0)

dummy

(ID15-ID8)

Enter OTP mode

Read SFDP mode

and Unique ID

Number

3Ah

5Ah (8)

A23-A16 A15-A8

Byte 4 Byte 5

A7-A0

D7-D0

dummy (ID7-ID0)

00h

01h

(ID7-ID0)

(M7-M0)

(ID7-ID0)

(7)

A7-A0

dummy

Byte 6 n-Bytes

continuous(4)

Next byte continuous

(5)

(ID7-ID0) (6)

(M7-M0)

(D7-D0)

(Next Byte)

continuous

Notes:

1. RST command only executed if RSTEN command is executed first. Any intervening command will disable Reset.

2. Device accepts eight-clocks command in Standard SPI mode, or two-clocks command in Quad SPI mode

3. Data bytes are shifted with Most Significant Bit first. Byte fields with data in parenthesis â( )â indicate data being read from the

device on the DO pin

4. The Status Register contents will repeat continuously until CS# terminate the instruction

5. The Device ID will repeat continuously until CS# terminates the instruction

6. The Manufacturer ID and Device ID bytes will repeat continuously until CS# terminates the instruction.

00h on Byte 4 starts with MID and alternate with DID, 01h on Byte 4 starts with DID and alternate with MID

7. (M7-M0) : Manufacturer, (ID15-ID8) : Memory Type, (ID7-ID0) : Memory Capacity

8. Please note the above address cycles are base on 3-byte address mode, for 4-byte address mode, the address cycles will be

increased.

This Data Sheet may be revised by subsequent versions

or modifications due to changes in technical specifications.

Rev. E, Issue Date: 2012/01/30

www.eonssi.com

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