AS8FLC2M32 datasheet(8/29 Pages) MICROSS

tên linh kiện	AS8FLC2M32

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FLASH

AS8FLC2M32

AS8FLC2M32B

Rev. 1.6 05/11

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

Sector Un-Protect Algorithm Flow

Sector Unprotect:

Write 60h to sector

address with

A7 = 1, A2 = 1,

A1 = 0

Set up first sector

address

Wait 15 ms

Verify Sector

Unprotect: Write

40h to sector

address with

A7 = 1, A2 = 1,

A1 = 0

Read from

sector address

with A7 = 1,

A2 = 1, A1 = 0

START

PLSCNT = 1

RESET# = VID

Wait 1 ms

Data = 00h?

Last sector

verified?

Remove VID

from RESET#

Write reset

command

Sector Unprotect

complete

Yes

PLSCNT

= 1000?

Yes

Device failed

Increment

PLSCNT

Temporary Sector

Unprotect Mode

All sectors

protected?

Yes

Protect all sectors:

The indicated portion

of the sector protect

algorithm must be

performed for all

unprotected sectors

prior to issuing the

first sector

unprotect address

Set up

next sector

address

Yes

Sector Unprotect

Algorithm

First Write

Cycle = 60h?

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