m29w400d Numonyx, m29w400d Datasheet - Page 42

• Manufacturer Part Number: m29w400d
• Description: 4 Mbit 512 Kb X 8 Or 256 Kb X 16, Boot Block 3 V Supply Flash Memory
• Manufacturer: Numonyx

Block protection
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Table 23.
Block Protect
Chip Unprotect
Block Protection
Verify
Block
Unprotection
Verify
Operation
Programmer technique bus operations, BYTE = V
V
V
V
V
E
ID
IL
IL
IL
V
V
V
V
G
ID
ID
IL
IL
pulse
pulse
V
V
V
V
W
IH
IH
IL
IL
A9 = V
A0 = V
A0 = V
A12-A17 block address,
A12-A17 block address,
A12-A17 block address,
ID
Address inputs
IL
IL
, A12 = V
, A1 = V
, A1 = V
others = X
others = X
others = X
others = X
A9 = V
A9 = V
A9 = V
A0-A17
IH
IH
IH
ID
ID
ID
,
, A15 = V
,
, A6 = V
,
, A6 = V
M29W400DT, M29W400DB
IH
IL
IH
,
,
IH
,
or V
DQ15A–1, DQ14-DQ0
Data inputs/outputs
IL
Retry = XX00h
Retry = XX01h
Pass = XX01h
Pass = XX00h
X
X