M29W320DB 데이터 시트보기 (PDF) - Numonyx -> Micron

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M29W320DB

32 Mbit (4Mbx8 or 2Mbx16, Non-uniform Parameter Blocks, Boot Block), 3V Supply Flash memory

Numonyx -> Micron 

M29W320DT, M29W320DB

Figure 17. Programmer Equipment Chip Unprotect Flowchart

START

PROTECT ALL BLOCKS

n=0

CURRENT BLOCK = 0

Block Protection

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

51/56

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