IMX29F002BTI-70 Ver la hoja de datos (PDF) - Macronix International

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IMX29F002BTI-70

2M-BIT [256K x 8] CMOS FLASH MEMORY

Macronix International 

MX29F002/002N T/B

SECTOR PROTECTION ALGORITHM FOR SYSTEM WITHOUT 12V

START

PLSCNT=1

Write "unlock for sector protect/unprotect"

Command(Table1)

Set Up Sector Addr

(A17,A16,A15,A14,A13)

OE=VIH,A9=VIH

CE=VIL,A6=VIL

Activate WE Pulse to start

Data don't care

Increment PLSCNT

No

Toggle bit checking

No

Q6 not Toggled

Yes

Set CE=OE=VIL

A9=VIH

Read from Sector

Addr=SA, A1=1

No

PLSCNT=32?

Data=01H?

Yes

Device Failed

Yes

.

Protect Another

Yes

Sector?

No

Write Reset Command

Sector Protection

Complete

P/N: PM0547

REV. 1.5, MAR. 28, 2005

38

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