M29W641DH Datasheet, PDF(37/42 Page) STMicroelectronics – 64 Mbit 4Mb x16, Uniform Block 3V Supply Flash Memory

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M29W641DH Datasheet, PDF (37/42 Pages) STMicroelectronics – 64 Mbit 4Mb x16, Uniform Block 3V Supply Flash Memory

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M29W641DH, M29W641DL, M29W641DU

Figure 16. Programmer Equipment Group Protect Flowchart

START

ADDRESS = GROUP ADDRESS

W = VIH

n=0

G, A9 = VID,

E = VIL

Wait 4Âµs

W = VIL

Wait 100Âµs

W = VIH

E, G = VIH,

A0, A6 = VIL,

A1 = VIH

E = VIL

Wait 4Âµs

G = VIL

Wait 60ns

Read DATA

DATA NO

01h

YES

A9 = VIH

E, G = VIH

PASS

++n NO

= 25

YES

A9 = VIH

E, G = VIH

FAIL

AI05574

37/42

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