MB84VD23581FJ-70 Datasheet, PDF (7/56 Pages) SPANSION – 64 M ( x 16) FLASH MEMORY & 64 M ( x 16) Mobile FCRAM

MB84VD23581FJ-70
s DEVICE BUS OPERATIONS
Operation *^1,*²
Full Standby
CEf CE1r CE2r OE WE LB
H H H XX X
UB
PE
A21 to A0
DQ7 to
DQ0
DQ15 to
DQ8
RESET
WP/
ACC*¹²
X H X High-Z High-Z H
X
H L H H H X X H X *¹⁰ High-Z High-Z H
X
Output Disable *³
L H H H H X X H X High-Z High-Z H
X
Read from Flash *⁴ L H H L H X X H Vaild DOUT DOUT
H
X
Write to Flash
L H H H L X X H Vaild DIN
DIN
H
X
Read from FCRAM *⁵ H L H L H L *⁹ L *⁹ H Vaild DOUT DOUT
H
X
LL
DIN
DIN
Write to FCRAM
H L H H L H L H Vaild High-Z DIN
H
X
LH
DIN High-Z
Temporary Sector
Group Unprotection X X X X X X X X X
X
X
VID
X
*⁶
Flash Hardware
Reset
X H H X X X X X X High-Z High-Z L
X
Boot Block Sector
Write Protection
X X X XX X X X
X
X
X
X
L
FCRAM Power Down
Program *⁷
H
H
H
XX X
X
L Vaild High-Z High-Z
H
X
FCRAM No Read
H L H L H H H H Vaild High-Z High-Z H
X
FCRAM Power Down
*⁸
X
X
L XX X
XX
X
X
X
X
X
Legend: L = VIL, H = VIH, X = VIL or VIH. See DC Characteristics for voltage levels.
*1 : Other operations except for indicated this column are prohibited.
*2 : Do not apply CEf = VIL, CE1r = VIL and CE2r = VIH all at once.
*3 : FCRAM Output Disable condition should not be kept longer than 1 µs.
*4 : WE can be VIL if OE is VIL, OE at VIH initiates the write operations.
*5 : FCRAM LB,UB control at Read operation is not supported.
*6 : It is also used for the extended sector group protections.
*7 : The FCRAM Power Down Program can be performed one time after compliance of Power-UP timings and it
should not be re-programmed after regular Read or Write.
*8 : FCRAM Power Down mode can be entered from Standby state and all DQ pins are in High-Z state.
IPDr current and data retention depends on the selection of Power Down Program.
*9 : Either or both LB and UB must be Low for FCRAM Read Operation.
*10 : Can be either VIL or VIH but must be valid before Read or Write.
*11 : See “ FCRAM Power Down Program Key Table “ in next page.
*12 : Protect “ outer most “ 2 × 8K bytes ( 4 words ) on both ends of the boot block sectors.
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