M29W800DT45M6F View Datasheet(PDF) - Numonyx -> Micron

Part Name

Description

MFG CO.

M29W800DT45M6F

8-Mbit (1 Mbit x 8 or 512 Kbits x 16, boot block) 3 V supply flash memory

Numonyx -> Micron 

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M29W800DT, M29W800DB

Figure 20. In-system equipment block protect flowchart

START

n=0

RP = VID

WRITE 60h

ADDRESS = BLOCK ADDRESS

A0 = VIL, A1 = VIH, A6 = VIL

WRITE 60h

ADDRESS = BLOCK ADDRESS

A0 = VIL, A1 = VIH, A6 = VIL

Wait 100µs

WRITE 40h

ADDRESS = BLOCK ADDRESS

A0 = VIL, A1 = VIH, A6 = VIL

Wait 4µs

READ DATA

ADDRESS = BLOCK ADDRESS

A0 = VIL, A1 = VIH, A6 = VIL

Block protection

DATA NO

=

01h

YES

RP = VIH

ISSUE READ/RESET

COMMAND

PASS

++n NO

= 25

YES

RP = VIH

ISSUE READ/RESET

COMMAND

FAIL

AI03471

49/52

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