MB84VD23280FA Datasheet, PDF (9/49 Pages) SPANSION – 64M (X8/X16) FLASH MEMORY & 8M (X8/X16) STATIC RAM

MB84VD23280FA-70
User Bus Operations (Flash = Word mode; CIOf = VCCf, SRAM = Byte mode; CIOs = VSS)
Operation *^1,*³ CEf CE1s CE2s OE WE SA LB UB DQ7 to DQ0 DQ15 to DQ8 RESET
WP/
ACC
*⁵
Full Standby
H
H
X
X
XXXX X
L
High-Z
High-Z
H
X
Output Disable
HL
H
L
X
HHXX X
H
XXXHH
X
HHXX X
L
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
H
X
HX
Read from Flash*² L
LHXX X
XL
DOUT
DOUT
H
X
Write to Flash
HX
L
HLXXX
DIN
XL
DIN
H
X
Read from SRAM H L H L H SA X X
DOUT
High-Z
H
X
Write to SRAM
H L H X L SA X X
DIN
High-Z
H
X
Temporary Sector
Group Unprotec- X X X X X X X X
X
tion*⁴
X
VID
X
Flash Hardware
Reset
H
X
X
X
XXXX X
L
High-Z
High-Z
L
X
Boot Block Sector
Write Protection
X
X
X XXXXX
X
X
Legend: L = VIL, H = VIH, X = VIL or VIH. See DC Characteristics for voltage levels.
X
L
*1 : Other operations except for indicated this column are inhibited.
*2 : WE can be VIL if OE is VIL, OE at VIH initiates the write operations.
*3 : Do not apply CEf = VIL, CE1s = VIL and CE2s = VIH at a time.
*4 : It is also used for the extended sector group protections.
*5 : Protect of “outermost” 2 x 4 Kwords on both ends of each boot block sector.
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