m29w400b-100za6tr STMicroelectronics, m29w400b-100za6tr Datasheet - Page 71

• Manufacturer Part Number: m29w400b-100za6tr
• Description: 64 Mbit 8mb X8 Or 4mb X16, Multiple Bank, Boot Block 3v Supply Flash Memory
• Manufacturer: STMicroelectronics

M29DW640F
Figure 22. In-System Equipment Group Protect flowchart
1. Block Protection Groups are shown in
2. RP can be either at V
IH
or at V
ID
when using the In-System Technique to protect the Extended Block.
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
A0, A2, A3, A6 = V IL, A1 = V IH
A0, A2, A3, A6 = V IL, A1 = V IH
Appendix
ISSUE READ/RESET
DATA = 01h
READ DATA
COMMAND
Wait 100µs
WRITE 60h
WRITE 60h
WRITE 40h
RP = V ID
RP = V IH
Wait 4µs
START
D,
PASS
n = 0
Table
YES
24.
NO
ISSUE READ/RESET
COMMAND
RP = V IH
= 25
FAIL
++n
YES
NO
Block protection
AI07758
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