MX29F800CB 데이터 시트보기 (PDF) - Integrated Device Technology

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MX29F800CB

8M-BIT [1024K x 8 / 512K x 16] SINGLE VOLTAGE 5V ONLY FLASH MEMORY

Integrated Device Technology 

MX29F800C T/B

Figure 13-1. IN-SYSTEM SECTOR PROTECT WITH RESET#=Vhv

START

Retry count=0

RESET#=Vhv

Wait 1us

Temporary Unprotect Mode

Retry Count +1

No

Retry Count=25?

Yes

Device fail

No

First CMD=60h?

Yes

Write Sector Address

with [A6,A1,A0]:[0,1,0]

data: 60h

Wait 150us

Write Sector Address

with [A6,A1,A0]:[0,1,0]

data: 40h

Read at Sector Address

with [A6,A1,A0]:[0,1,0]

Reset

PLSCNT=1

No

Data=01h?

Yes

Protect another

Yes

sector?

No

Temporary Unprotect Mode

RESET#=Vih

Write RESET CMD

Sector Protect Done

P/N:PM1493

REV. 1.2, JUL. 05, 2012

31

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