EN25P80 Datasheet, PDF(8/30 Page) Eon Silicon Solution Inc. – 8 Mbit Uniform Sector, Serial Flash Memory

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EN25P80 Datasheet, PDF (8/30 Pages) Eon Silicon Solution Inc. – 8 Mbit Uniform Sector, Serial Flash Memory

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EN25P80

In the case of multi-byte commands of Page Program (PP), and Release from Deep Power Down

(RES ) minimum number of bytes specified has to be given, without which, the command will be

ignored.

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, 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

Write Enable

Write Disable

Read Status

Write Status

Read Data

Fast Read

Page Program

Sector Erase

Bulk Erase

Deep Power-down

Release from Deep

Power-down, and

read Device ID

Release from Deep

Power-down

Manufacturer/

Device ID

Read Identification

Byte 1

Code

06h

04h

05h

01h

03h

0Bh

02h

D8h

C7h

B9h

ABh

90h

9Fh

Byte 2

Byte 3

Byte 4 Byte 5 Byte 6

n-Bytes

(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

(4)

dummy

dummy dummy (ID7-ID0)

dummy

(M7-M0)

dummy

(ID15-ID8)

00h(5) (M7-M0)

(ID7-ID0)

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. All sectors may use any address within the sector.

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

5. 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.

Table 5. Manufacturer and Device Identification

OP Code (M7-M0)

(ID15-ID0)

(ID7-ID0)

ABh

13h

90h

1Ch

13h

9Fh

1Ch

2014h

This Data Sheet may be revised by subsequent versions

or modifications due to changes in technical specifications.

Rev. C, Issue Date: 2006/12/25

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