M29W640FT70N6E View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M29W640FT70N6E

64 Mbit (8Mb x8 or 4Mb x16, Page, Boot Block) 3V Supply Flash Memory

STMicroelectronics 

9 Part Numbering

Figure 17. Programmer Equipment Chip Unprotect Flowchart

START

PROTECT ALL GROUPS

n=0

CURRENT GROUP = 0

M29W640FT, M29W640FB

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 = VIL, A1 =VIH,

A6 =VIL, A9 = VID, Others = X

E = VIL

Wait 4µs

G = VIL

Wait 60ns

Read DATA

INCREMENT

CURRENT GROUP

NO DATA YES

=

00h

NO ++n

= 1000

YES

A9 = VIH

E, G = VIH

FAIL

1. Block Protection Groups are shown in Appendix A, Tables 20 and 21.

LAST NO

GROUP

YES

A9 = VIH

E, G = VIH

PASS

AI11556

68/72

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