MBM29LV002BC 查看數據表（PDF） - Fujitsu
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MBM29LV002BC Datasheet PDF : 52 Pages
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MBM29LV002TC-70/-90/-12/MBM29LV002BC-70/-90/-12
The manufacturer and device codes may also be read via the command register, for instances when the
MBM29LV002TC/BC are erased or programmed in a system without access to high voltage on the A9 pin. The
command sequence is illustrated in Table 6. (Refer to Autoselect Command section.)
Byte 0 (A0 = VIL) represents the manufacturer’s code (Fujitsu = 04H) and (A0 = VIH) represents the device identifier
code (MBM29LV002TC = 40H and MBM29LV002BC = C2H). These two bytes/words are given in the tables 3.1
and 3.2. All identifiers for manufactures and device will exhibit odd parity with DQ7 defined as the parity bit. In
order to read the proper device codes when executing the autoselect, A1 must be VIL. (See Tables 3.1 and 3.2.)
Table 3 .1 MBM29LV002TC/002BC Sector Protection Verify Autoselect Codes
Type
A13 to A17
A10
A6
A1
A0
Code (HEX)
Manufacture’s Code
X
VIL
VIL
VIL
VIL
04H
MBM29LV002TC
X
Device Code
MBM29LV002BC
X
VIL
VIL
VIL
VIH
VIL
VIL
VIL
VIH
40H
C2H
Sector Protection
Sector
Addresses
VIL
VIL
VIH
VIL
01H*
* : Outputs 01H at protected sector addresses and outputs 00H at unprotected sector addresses.
Table 3 .2 Expanded Autoselect Code Table
Type
Code
DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0
Manufacture’s Code
04H
0
0
0
0
0
1
0
0
MBM29LV002TC 40H
0
1
0
0
0
0
0
0
Device Code
MBM29LV002BC C2H
1
1
0
0
0
0
1
0
Sector Protection
01H
0
0
0
0
0
0
0
1
11
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