M29W160EB 데이터 시트보기 (PDF) - STMicroelectronics

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M29W160EB

16 Mbit (2Mb x8 or 1Mb x16, Boot Block) 3V Supply Flash Memory

STMicroelectronics 

M29W160ET, M29W160EB

Figure 18. Programmer Equipment Chip Unprotect Flowchart

START

PROTECT ALL BLOCKS

n=0

CURRENT BLOCK = 0

A6, A12, A15 = VIH(1)

E, G, A9 = VID

Wait 4µs

W = VIL

Wait 10ms

W = VIH

E, G = VIH

ADDRESS = CURRENT BLOCK ADDRESS

A0 = VIL, A1, A6 = VIH

E = VIL

Wait 4µs

G = VIL

Wait 60ns

Read DATA

INCREMENT

CURRENT BLOCK

NO ++n

= 1000

YES

A9 = VIH

E, G = VIH

FAIL

NO DATA YES

=

00h

LAST NO

BLOCK

YES

A9 = VIH

E, G = VIH

PASS

AI03470

36/40

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