AS8FLC2M32BP-90/XT 参数 Datasheet PDF下载

AUSTIN SEMICONDUCTOR, INC.

Austin Semiconductor, Inc.

Sector Protect Algorithm Flow

START

PLSCNT = 1

RESET# = V

ID

Wait 1 ms

AS8FLC2M32

FLASH

Temporary

Sector

Unprotect Mode

No

First Write

Cycle = 60h?

Yes

Set

up

sector

address

Sector

Protect:

Write 60h to

sector

address

with

A7 = 0, A2 = 1,

A1 = 0

Wait 150 µs

Verify

Sector

Protect: Write 40h

to

sector address

with A7 = 0,

A2 = 1, A1 = 0

Read from

sector address

with A7 = 0,

A2 = 1, A1 = 0

No

Increment

PLSCNT

Reset

PLSCNT = 1

No

PLSCNT

= 25?

Yes

Data = 01h?

Yes

Yes

Device failed

Protect

another

sector?

No

Remove V

ID

from RESET#

Write reset

command

Sector

Protect

Algorithm

AS8FLC2M32B

Rev. 1.2 5/09

Sector

Protect

complete

Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.

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