MB84VD23280EA Datasheet, PDF (6/45 Pages) Fujitsu Component Limited. – 64M (x8/x16) FLASH MEMORY & 8M (x8/x16) STATIC RAM

MB84VD23280EA-90/MB84VD23280EE-90
s DEVICE BUS OPERATIONS
Table 1. 1 User Bus Operations (Flash = Word mode; CIOf = VCCf, SRAM = Word mode; CIOs = VCCs)
Operation (1), (3)
CEf CE1s CE2s
OE
WE
SA
(6)
WP/
LBs UBs DQ7 to DQ0 DQ15 to DQ8 RESET ACC
(5)
Full Standby
H
H
X
X
X X X X X HIGH-Z
L
HIGH-Z
H
X
Output Disable
HL
H
L
X
H H X X X HIGH-Z
H
X X X H H HIGH-Z
X
H H X X X HIGH-Z
L
HIGH-Z
HIGH-Z
HIGH-Z
H
X
Read from Flash
(2)
L
H
X
X
LHXX X
L
DOUT
DOUT
H
X
Write to Flash
HX
L
HLXXX
DIN
XL
DIN
H
X
LL
DOUT
DOUT
Read from SRAM H L H L H X H L HIGH-Z
DOUT
H
X
LH
DOUT
HIGH-Z
LL
DIN
DIN
Write to SRAM
H L H X L X H L HIGH-Z
DIN
H
X
LH
DIN
HIGH-Z
Temporary Sector
Group
X X X XXXXX
X
Unprotection(4)
X
VID
X
Flash Hardware
Reset
H
X
X
X
X X X X X HIGH-Z
L
HIGH-Z
L
X
Boot Block Sector
Write Protection
X
X
X XXXXX
X
X
X
L
Legend: L = VIL, H = VIH, X = VIL or VIH. See DC Characteristics for voltage levels.
Notes:
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 2 of 8 Kbytes on both ends of each boot sector.
6. SA; Don’t care or Open.
6