MBM29DL321BD 데이터 시트보기 (PDF) - Fujitsu
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MBM29DL321BD Datasheet PDF : 84 Pages
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MBM29DL32XTD/BD-80/90/12
s DEVICE BUS OPERATION
Table 3 MBM29DL32XTD/BD User Bus Operations (BYTE = VIH)
Operation
CE OE WE A0 A1 A6 A9 DQ0 to DQ15 RESET WP/ACC
Auto-Select Manufacturer Code (1)
L L H L L L VID Code
H
X
Auto-Select Device Code (1)
L L H H L L VID Code
H
X
Read (3)
L L H A0 A1 A6 A9
DOUT
H
X
Standby
H X X X X X X HIGH-Z
H
X
Output Disable
L H H X X X X HIGH-Z
H
X
Write (Program/Erase)
L H L A0 A1 A6 A9
DIN
H
X
Enable Sector Group Protection (2), (4) L VID
L H L VID
X
H
X
Verify Sector Group Protection (2), (4)
L L H L H L VID Code
H
X
Temporary Sector Group Unprotection (5) X X X X X X X
X
VID
X
Reset (Hardware)/Standby
X X X X X X X HIGH-Z
L
X
Boot Block Sector Write Protection
XXXXXXX
X
X
L
Table 4 MBM29DL32XTD/BD User Bus Operations (BYTE = VIL)
Operation
CE
OE
WE
DQ15/
A-1
A0
A1
A6
A9 DQ0 to DQ7 RESET WP/ACC
Auto-Select Manufacturer Code (1) L L H L L L L VID Code
H
X
Auto-Select Device code (1)
L L H L H L L VID Code
H
X
Read (3)
L L H A-1 A0 A1 A6 A9
DOUT
H
X
Standby
H X X X X X X X HIGH-Z
H
X
Output Disable
L H H X X X X X HIGH-Z
H
X
Write (Program/Erase)
L H L A-1 A0 A1 A6 A9
DIN
H
X
Enable Sector Group Protection
(2), (4)
L VID
L L H L VID
X
H
X
Verify Sector Group Protection
(2), (4)
L L H L L H L VID Code
H
X
Temporary Sector Group
Unprotection (5)
XXX X XXXX
X
VID
X
Reset (Hardware)/Standby
X X X X X X X X HIGH-Z
L
X
Boot Block Sector Write Protection X X X X X X X X
X
X
L
Legend: L = VIL, H = VIH, X = VIL or VIH, = Pulse input. See DC Characteristics for voltage levels.
Notes: 1. Manufacturer and device codes may also be accessed via a command register write sequence. See
Table 12.
2. Refer to the section on Sector Group Protection.
3. WE can be VIL if OE is VIL, OE at VIH initiates the write operations.
4. VCC = 3.3 V ± 10%
5. It is also used for the extended sector group protection.
9
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