MBM29LV160T Fujitsu Media Devices, MBM29LV160T Datasheet - Page 13

• Manufacturer Part Number: MBM29LV160T
• Description: 16M (2M x 8/1M x 16) BIT
• Manufacturer: Fujitsu Media Devices

*1: A
*2: Outputs 01H at protected sector addresses and outputs 00H at unprotected sector addresses.
(B): Byte mode
(W): Word mode
Manufacture’s Code
Device
Code
Sector Protection
Manufacture’s Code
Device Code
Sector Protection
The manufacturer and device codes may also be read via the command register, for instances when the
MBM29LV160T/B is erased or programmed in a system without access to high voltage on the A
command sequence is illustrated in Table 7, Command Definitions.
Byte 0 (A
For the MBM29LV160T/B these two bytes are given in the Table 4.2. All identifiers for manufactures and device
will exhibit odd parity with DQ
the Autoselect, A
and DQ
If BYTE = V
= V
In order to determine which sectors are write protected, A
addresses; if the selected sector is protected, a logical ‘1’ will be output on DQ
-1
IH
is for Byte mode.
MBM29LV160T
MBM29LV160B
(for word mode), the device code is 22C4H (for top boot block) or 2249H (for bottom boot block).
Type
MBM29LV160T
13
0
are equal to ‘1’ and DQ
= V
IL
(for byte mode), the device code is C4H (for top boot block) or 49H (for bottom boot block). If BYTE
MBM29LV160T
MBM29LV160B
IL
) represents the manufacture’s code and byte 1 (A
Type
Table 4.1 MBM29LV160T/B Sector Protection Verify Autoselect Code
1
must be V
(W) 22C4H
(W)
(B)
(B)
2249H
Code DQ
C4H A
04H A
49H A
01H A
IL
7
. (See Tables 2 or 3.) For device indentification in word mode (BYTE = V
Table 4.2 Expanded Autoselect Code Table
defined as the parity bit. In order to read the proper device codes when executing
-1
-1
0
0
-1
-1
/0
/0
15
Word
Word
8
Byte
Byte
, DQ
DQ
HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z 1
HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z 0
0
0
0
0
14
10
-80/-90/-12
Addresses
DQ
A
to DQ
0
1
1
0
Sector
12
13
to A
X
X
X
DQ
12
0
0
0
0
, DQ
12
18
DQ
0
0
0
0
14
11
, and DQ
V
V
V
V
A
DQ
IL
IL
IL
IL
1
6
/MBM29LV160B
0
0
0
0
must be at V
10
DQ
15
0
1
1
0
0
are equal to ‘0’.
9
= V
V
V
V
V
A
DQ
IH
IL
IL
IL
1
0
0
0
0
IH
) represents the device identifier code.
8
IH
DQ
while running through the sector
0
1
0
0
7
DQ
0
V
V
V
V
0
1
1
1
1
0
A
(DQ
IH
IH
IL
IL
6
0
DQ
0
0
0
0
0
0
0
5
=1).
DQ
0
0
0
0
0
0
A
4
V
V
V
V
X
X
-1
DQ
IL
IL
IL
IL
-80/-90/-12
*
0
0
0
1
1
0
1
3
9
DQ
pin. The
1
1
1
0
0
0
2
22C4H
2249H
(HEX)
01H*
Code
DQ
C4H
IH
04H
49H
0
0
0
0
0
0
), DQ
1
DQ
2
0
0
0
1
1
1
9
0
13