M29DW323DB90N6 データシートの表示（PDF） - STMicroelectronics

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M29DW323DB90N6

32 Mbit (4Mb x8 or 2Mb x16, Dual Bank 8:24, Boot Block) 3V Supply Flash Memory

STMicroelectronics 

M29DW323DT, M29DW323DB

Figure 20. Programmer Equipment Group Protect Flowchart

START

ADDRESS = GROUP ADDRESS

W = VIH

n=0

G, A9 = VID,

E = VIL

Wait 4µs

W = VIL

Wait 100µs

W = VIH

E, G = VIH,

A0, A6 = VIL,

A1 = VIH

E = VIL

Wait 4µs

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

Note: Block Protection Groups are shown in Appendix D, Tables 21 and 22.

44/49

AI05574

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