M29F100 データシートの表示（PDF） - STMicroelectronics

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コンポーネント説明

メーカー

M29F100

1 Mbit (128Kb x8 or 64Kb x16, Boot Block) Single Supply Flash Memory

STMicroelectronics 

Figure 15. All Blocks Unprotecting Flowchart

M29F100T, M29F100B

START

PROTECT

ALL BLOCKS

n=0

W = VIH

E, G, A9 = VID

A12, A15 = VIH

Wait 4µs

W = VIL

Wait 10ms

W = VIH

E, G = VIH

E, A0 = VIL; A1, A6 = VIH; A9 = VID

A12-A15 IDENTIFY BLOCK

Wait 4µs

G = VIL

Wait 60ns

VERIFY BLOCK

PROTECT STATUS

NO ++n

= 1000

YES

A9 = VIH

FAIL

NO DATA YES

=

00h

Set-up

Unprotect

Verify

NEXT

BLOCK

LAST NO

BLK.

YES

A9 = VIH

PASS

AI01985D

25/30

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