M29W320DB90N6_03 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
M29W320DB90N6_03 Datasheet PDF : 44 Pages
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Figure 20. In-System Equipment Block Protect Flowchart
M29W320DT, M29W320DB
START
n=0
RP = VID
WRITE 60h
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
WRITE 60h
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
Wait 100µs
WRITE 40h
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
Wait 4µs
READ DATA
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
DATA NO
=
01h
YES
RP = VIH
ISSUE READ/RESET
COMMAND
PASS
++n NO
= 25
YES
RP = VIH
ISSUE READ/RESET
COMMAND
FAIL
AI03471
41/44
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