MBM29LV400BC Просмотр технического описания (PDF) - Spansion Inc.
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MBM29LV400BC Datasheet PDF : 58 Pages
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MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90
s DEVICE BUS OPERATIONS
MBM29LV400TC/400BC User Bus Operations Table (BYTE = VIH)
Operation
CE OE WE A0 A1 A6 A9 DQ0 to DQ15 RESET
Auto-Select Manufacturer Code *1
L L H L L L VID
Code
H
Auto-Select Device Code *1
L L H H L L VID
Code
H
Read *3
L
L
H A0 A1 A6 A9
DOUT
H
Standby
HXXXXXX
High-Z
H
Output Disable
L HHX X X X
High-Z
H
Write (Program/Erase)
L
H
L
A0 A1 A6 A9
DIN
H
Enable Sector Protection *2, *4
L VID
L
H
L VID
X
H
Verify Sector Protection *2, *4
L L H L H L VID
Code
H
Temporary Sector Unprotection*5
XXXXXXX
X
VID
Reset (Hardware)/Standby
Legend: L = VIL, H = VIH, X = VIL or VIH,
XXXXXXX
High-Z
L
= Pulse input. See “sDC CHARACTERISTICS” for voltage levels.
*1: Manufacturer and device codes are accessed via a command register write sequence. See “MBM29LV400TC/
400BC Standard Command Definitions Table” in sDEVICE BUS OPERATIONS.
*2: Refer to “7. Sector Protection” in sFUNCTIONAL DESCRIPTION.
*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 protection.
Operation
MBM29LV400TC/400BC User Bus Operations (BYTE = VIL)
CE
OE
WE
DQ15/
A-1
A0
A1
A6
A9 DQ0 to DQ7 RESET
Auto-Select Manufacturer Code *1 L
L
H
L
L
L
L
VID
Code
H
Auto-Select Device Code *1
L
L
H
L
H
L
L
VID
Code
H
Read *3
L
L
H
A-1
A0
A1
A6
A9
DOUT
H
Standby
H X X X X X X X High-Z
H
Output Disable
L H H X X X X X High-Z
H
Write (Program/Erase)
L
H
L
A-1
A0
A1
A6
A9
DIN
H
Enable Sector Protection *2, *4
L
VID
L
L
H
L
VID
X
H
Verify Sector Protection *2, *4
L
L
H
L
L
H
L
VID
Code
H
Temporary Sector Unprotection *5 X X X X X X X X
X
VID
Reset (Hardware)/Standby
X X X X X X X X High-Z
L
Legend: L = VIL, H = VIH, X = VIL or VIH, = Pulse input. See “sDC CHARACTERISTICS” for voltage levels.
*1: Manufacturer and device codes are accessed via a command register write sequence. See “MBM29LV400TC/
400BC Standard Command Definitions Table” in sDEVICE BUS OPERATIONS.
*2: Refer to “7. Sector Protection” in sFUNCTIONAL DESCRIPTION.
*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 protection.
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