MX29F100B View Datasheet(PDF) - Macronix International

Part Name

Description

MFG CO.

MX29F100B

1M-BIT [128Kx8/64Kx16] CMOS FLASH MEMORY

Macronix International 

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MX29F100T/B

SECTOR PROTECTION ALGORITHM FOR SYSTEM WITHOUT 12V

START

PLSCNT=1

Write "unlock for sector protect/unprotect"

Command(Table1)

Set Up Sector Addr

(A15,A14,A13,A12)

OE=VIH,A9=VIH

CE=VIL,A6=VIL

Activate WE Pulse to start

Data don't care

Increment PLSCNT

No

Toggle bit checking

No

DQ6 not Toggled

Yes

Set CE=OE=VIL

A9=VIH

Read from Sector

Addr=SA, A1=1

No

PLSCNT=32?

Data=01H?

.

Yes

Yes

Device Failed

Protect Another

Yes

Sector?

No

Write Reset Command

Sector Protection

Complete

P/N:PM0548

REV. 1.2, NOV. 12, 2001

39

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