M29W128FL View Datasheet(PDF) - Numonyx -> Micron

Part Name

Description

MFG CO.

M29W128FL

128 Mbit 3V Supply Flash Memory

Numonyx -> Micron 

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Flowcharts

M29W128FH, M29W128FL

Figure 21. In-System equipment Chip Unprotect flowchart

START

PROTECT ALL GROUPS

n=0

CURRENT GROUP = 0

RP = VID

WRITE 60h

ANY ADDRESS WITH

A1 = VIH, A0, A2 to A7 = VIL

WRITE 60h

ANY ADDRESS WITH

A0, A2, A3, A4, A5, A7 = VIL

A1, A6 = VIH

Wait 10ms

WRITE 40h

ADDRESS =

CURRENT GROUP ADDRESS

A1 = VIH, A0, A2 to A7 = VIL

Wait 4µs

READ DATA

ADDRESS =

CURRENT GROUP ADDRESS

A1 = VIH, A0, A2 to A7 = VIL

NO

YES

DATA = 00h

INCREMENT

CURRENT GROUP

NO ++n

= 1000

YES

RP = VIH

LAST

NO

GROUP

YES

RP = VIH

ISSUE READ/RESET

COMMAND

ISSUE READ/RESET

COMMAND

FAIL

PASS

1. Block Protection Groups are shown in Appendix D: High Voltage Block Protection, Table 28.

AI07759d

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