M29W640GT70NA6F NUMONYX, M29W640GT70NA6F Datasheet - Page 86

• Manufacturer Part Number: M29W640GT70NA6F
• Description: 64MB FLASH MEMORY
• Manufacturer: NUMONYX

Block protection
86/91
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
M29W640GH, M29W640GL, M29W640GT, M29W640GB
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
AI11563