M29W128FH View Datasheet(PDF) - Numonyx -> Micron

Part Name

Description

Manufacturer

M29W128FH

128 Mbit 3V Supply Flash Memory

Numonyx -> Micron 

Flowcharts

M29W128FH, M29W128FL

Figure 19. Programmer equipment Chip Unprotect flowchart

START

PROTECT ALL

GROUPS

n=0

CURRENT GROUP = 0

A6, A12, A15 = VIH(1)

E, G, A9 = VID

Wait 4µs

W = VIL

Wait 10ms

W = VIH

E, G = VIH

ADDRESS = CURRENT

GROUP ADDRESS

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

A1, A6 = VIH

E = VIL

Wait 4µs

G = VIL

Wait 60ns

Read DATA

INCREMENT

CURRENT GROUP

NO DATA = 00h YES

NO

++n

= 1000

YES

A9 = VIH

E, G = VIH

FAIL

LAST

NO

GROUP

YES

A9 = VIH

E, G = VIH

PASS

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

AI07757b

72/78

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