MBM29DL32XTE/BE80/90
■ DEVICE BUS OPERATION
MBM29DL32XTE/BE User Bus Operations (BYTE = VIH)
DQ15 to
DQ0
Operation
CE OE WE A0
A1
A6
A9
RESET WP/ACC
Auto-Select Manufacturer Code*1
Auto-Select Device Code*1
Read*3
L
L
L
H
L
L
L
L
X
X
X
L
L
H
H
H
X
H
L
L
H
A0
X
X
A0
L
L
L
L
L
VID
VID
A9
X
Code
Code
DOUT
High-Z
High-Z
DIN
H
H
H
H
H
H
H
H
VID
L
X
X
X
X
X
X
X
X
X
X
L
L
A1
X
A6
X
X
A6
L
Standby
X
H
H
VID
L
Output Disable
X
X
Write (Program/Erase)
A1
H
H
X
A9
VID
VID
X
Enable Sector Group Protection*2, *4
Verify Sector Group Protection*2, *4
Temporary Sector Group Unprotection*5
Reset (Hardware) /Standby
Boot Block Sector Write Protection
X
H
X
X
X
L
L
Code
X
X
X
X
X
X
X
X
X
X
X
X
High-Z
X
X
X
X
Legend : L = VIL, H = VIH, X = VIL or VIH,
= Pulse input. See DC Characteristics for voltage levels.
*1 : Manufacturer and device codes are accessed via a command register write sequence. See “MBM29DL32XTE/
BE Command Definitions”.
*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 : Also used for the extended sector group protection.
9
SPANSION [ SPANSION ]
