MBM29F400TC
-55/-70-90
/MBM29F400BC
-55/-70-90
s
DEVICE BUS OPERATION
MBM29F400TC/BC User Bus Operation (BYTE = V
IH
)
Operation
Auto-Select Manufacturer Code*
1
Auto-Select Device Code *
1
Read*
3
Standby
Output Disable
Write
Enable Sector Protection*
2
Verify Sector Protection*
2
Temporary Sector Unprotection
Reset (Hardware)/Standby
Legend:
L = V
IL
, H = V
IH
, X = V
IL
or V
IH
,
CE
L
L
L
H
L
L
L
L
X
X
OE
L
L
L
X
H
H
V
ID
L
X
X
H
X
X
WE
H
H
H
X
H
L
A
0
L
H
A
0
X
X
A
0
X
L
X
X
A
1
L
L
A
1
X
X
A
1
X
H
X
X
A
6
L
L
A
6
X
X
A
6
L
L
X
X
A
9
V
ID
V
ID
A
9
X
X
A
9
V
ID
V
ID
X
X
DQ
15
to
DQ
0
Code
Code
D
OUT
High-Z
High-Z
D
IN
X
Code
X
High-Z
RESET
H
H
H
H
H
H
H
H
V
ID
L
= Pulse input. See
s
DC CHARACTERISTICS for voltage levels.
*1 : Manufacturer and device codes may also be accessed via a command register write sequence. Refer to
“MBM29F400TC/BC Command Definitions” in
sDEVICE
BUS OPERATION.
*2 : Refer to the section on Sector Protection.
*3 : WE can be V
IL
if OE is V
IL
, OE at V
IH
initiates the write operations.
MBM29F400TC/BC User Bus Operation (BYTE = V
IL
)
Operation
Auto-Select Manufacturer Code*
1
Auto-Select Device Code*
1
Read*
3
Standby
Output Disable
Write
Enable Sector Protection*
2
Verify Sector Protection*
2
Temporary Sector Unprotection
Reset (Hardware)/Standby
Legend:
L = V
IL
, H = V
IH
, X = V
IL
or V
IH
,
CE
L
L
L
H
L
L
L
L
X
X
OE
L
L
L
X
H
H
V
ID
L
X
X
H
X
X
15
WE DQ
-1
/A
A
0
L
H
A
0
X
X
A
0
X
L
X
X
A
1
L
L
A
1
X
X
A
1
X
H
X
X
A
6
L
L
A
6
X
X
A
6
L
L
X
X
A
9
V
ID
V
ID
A
9
X
X
A
9
V
ID
V
ID
X
X
DQ
7
to DQ
0
RESET
Code
Code
D
OUT
High-Z
High-Z
D
IN
X
Code
X
High-Z
H
H
H
H
H
H
H
H
V
ID
L
H
H
H
X
H
L
L
L
A
-1
X
X
A
-1
L
L
X
X
= Pulse input. See
s
DC CHARACTERISTICS for voltage levels.
*1 : Manufacturer and device codes may also be accessed via a command register write sequence. Refer to
“MBM29F400TC/BC Command Definitions” in
sDEVICE
BUS OPERATION.
*2 : Refer to the section on Sector Protection.
*3 : WE can be V
IL
if OE is V
IL
, OE at V
IH
initiates the write operations.
7
SPANSION [ SPANSION ]
