MX29F4000PC-70 View Datasheet(PDF) - Macronix International

Part Name

Description

MFG CO.

MX29F4000PC-70

4M-BIT [512KX8] CMOS EQUAL SECTOR FLASH MEMORY

Macronix International 

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MX29F4000

SECTOR PROTECTION ALGORITHM FOR SYSTEM WITH 12V

START

Set Up Sector Addr

(A18, A17, A16)

PLSCNT=1

OE=VID,A9=VID,CE=VIL

A6=VIL

Activate WE Pulse

Time Out 10us

Set WE=VIH, CE=OE=VIL

A9 should remain VID

.

Read from Sector

No

Addr=SA, A1=1

PLSCNT=32?

Yes

Device Failed

No

Data=01H?

Protect Another

Yes

Sector?

Remove VID from A9

Write Reset Command

Sector Protection

Complete

P/N:PM0629

REV. 1.0, DEC. 20, 1999

26

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