MX29LV040QC-70 datasheet(37/51 Pages) MCNIX

Part #	MX29LV040QC-70

Description	4M-BIT [512K x 8] CMOS SINGLE VOLTAGE 3V ONLY EQUAL SECTOR FLASH MEMORY

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Manufacturer	MCNIX [Macronix International]

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37 / 51 page

37

P/N:PM0722

MX29LV040

REV. 0.7, JUL. 12, 2001

Figure 17. CHIP UNPROTECTION ALGORITHM

START

Protect All Sectors

PLSCNT=1

Chip Unprotect

Complete

Data=00H?

Yes

Set OE=A9=VID

CE=VIL,A6=1

Activate WE Pulse

Time Out 50ms

Set OE=CE=VIL

A9=VID,A1=1

Set Up First Sector Addr

All sectors have

been verified?

Remove VID from A9

Write Reset Command

Device Failed

PLSCNT=1000?

No

Increment

PLSCNT

No

Read Data from Device

Yes

No

Increment

Sector Addr

* It is recommended before unprotect whole chip, all sectors should be protected in advance.

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MX29LV040QC-70 Datasheet(PDF) 37 Page - Macronix International

MX29LV040QC-70 Datasheet(HTML) 37 Page - Macronix International

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