M29W640GB NUMONYX [Numonyx B.V], M29W640GB Datasheet - Page 85

• Manufacturer Part Number: M29W640GB
• Description: 64 Mbit (8Mb x8 or 4Mb x16, Page) 3V supply Flash memory
• Manufacturer: NUMONYX [Numonyx B.V]

M29W640GH, M29W640GL, M29W640GT, M29W640GB
Figure 27. In-System Equipment Group Protect flowchart
2. Block Protection Groups are shown in
3. RP can be either at V
IH
or at V
ADDRESS = GROUP ADDRESS
ADDRESS = GROUP ADDRESS
ADDRESS = GROUP ADDRESS
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = V IL , A1 = V IH
A0, A2, A3, A6 = V IL , A1 = V IH
ID
A0, A2, A3, A6 = V IL , A1 = V IH
A0, A2, A3, A6 = V IL , A1 = V IH
when using the In-System Technique to protect the Extended Block.
ISSUE READ/RESET
Appendix
READ DATA
COMMAND
WRITE 60h
WRITE 60h
WRITE 40h
Wait 100µs
RP = V ID
RP = V IH
Wait 4µs
START
DATA
PASS
n = 0
01h
=
YES
A, Tables
NO
28
and 29.
ISSUE READ/RESET
COMMAND
RP = V IH
FAIL
= 25
++n
YES
NO
Block Protection
AI11563
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