FLASH

AS8FLC2M32

AS8FLC2M32B

Rev. 1.6 05/11

Micross Components reserves the right to change products or specifications without notice.

7

Sector Protect:

Write 60h to sector

address with

A7 = 0, A2 = 1,

A1 = 0

Set up sector

address

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

START

PLSCNT = 1

Wait 1 ms

First Write

Cycle = 60h?

Data = 01h?

from RESET#

Write reset

command

Sector Protect

complete

Yes

Yes

No

PLSCNT

= 25?

Yes

Device failed

Increment

PLSCNT

Temporary Sector

Unprotect Mode

No

No

Yes

No

Sector Protect

Algorithm

Protect another

sector?

Reset

PLSCNT = 1

Sector Protect Algorithm Flow