EN25F05_1 Datasheet, PDF(9/32 Page) Eon Silicon Solution Inc. – 512 Kbit Serial Flash Memory with 4Kbytes Uniform Sector

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EN25F05_1 Datasheet, PDF (9/32 Pages) Eon Silicon Solution Inc. – 512 Kbit Serial Flash Memory with 4Kbytes Uniform Sector

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EN25F05

In the case of Page Program, if the number of byte after the command is less than 4 (at least 1

data byte), it will be ignored too. In the case of SE and BE, exact 24-bit address is a must, any

less or more will cause the command to be ignored.

All attempts to access the memory array during a Write Status Register cycle, Program cycle or Erase

cycle are ignored, and the internal Write Status Register cycle, Program cycle or Erase cycle continues

unaffected.

Table 4. Instruction Set

Instruction Name

Byte 1

Code

Byte 2

Byte 3

Byte 4 Byte 5 Byte 6

n-Bytes

Write Enable

06h

Write Disable / Exit

OTP mode

04h

Read Status

05h

Write Status

01h

Read Data

03h

Fast Read

0Bh

Page Program

02h

(S7-S0)(1)

S7-S0

A23-A16

A15-A8

continuous(2)

A7-A0

(D7-D0)

dummy

D7-D0

(Next byte)

(D7-D0)

Next byte

continuous

(Next Byte)

continuous

Sector Erase

20h

A23-A16 A15-A8

A7-A0

Block Erase

D8h/ 52h A23-A16 A15-A8

A7-A0

Chip Erase

C7h/ 60h

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

Enter OTP mode

3Ah

(3)

dummy

dummy dummy (ID7-ID0)

dummy

(M7-M0)

dummy

00h

(M7-M0) (ID7-ID0) (4)

01h

(ID7-ID0) (M7-M0)

(ID15-ID8) (ID7-ID0) (5)

Notes:

1. 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.

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

3. The Device ID will repeat continuously until CS# terminate the instruction.

4. The Manufacturer ID and Device ID bytes will repeat continuously until CS# terminate the instruction.

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

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

Table 5. Manufacturer and Device Identification

OP Code

ABh

90h

9Fh

(M7-M0)

1Ch

(ID15-ID0)

3110h

(ID7-ID0)

05h

This Data Sheet may be revised by subsequent versions

or modifications due to changes in technical specifications.

Rev. D, Issue Date: 2010/04/15

www.eonssi.com

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