MBM29BS12DH Fujitsu Media Devices, MBM29BS12DH Datasheet - Page 7

• Manufacturer Part Number: MBM29BS12DH
• Description: (MBM29FS12DH / MBM29BS12DH) BURST MODE FLASH MEMORY CMOS 128M (8M X 16) BIT
• Manufacturer: Fujitsu Media Devices

Legend: L = V
*1 : WE can be V
*2 : At WP=V
*3 : Write Operation: at asynchronous mode, addresses are latched on the last falling edge of WE pulse while AVD
*4 : Write Operation: at synchronous mode, addresses are latched on the falling edge of WE while AVD is held low
Asynchronous Mode Operations (Default)
Asynchronous Read Addresses
Latched *
Standby
Output Disable
Write - WE address latched *
Write - AVD address latched *
Boot Block Sector Write Protection *
All Sector Write Protection *
RESET
Synchronous Mode Operations (need to set the configuration register)
Load Starting Burst Address
(CLK latch) *
Advance Burst to next address with
appropriate Data presented on the Data
Bus *
Terminate current Burst read cycle
Terminate current Burst read via
RESET
Terminate current Burst read
cycle and start new Burst read cycle
Burst Suspend
Standby
Output Disable
Write - WE address latched *
Write - CLK address latched *
Write - AVD address latched *
Boot Block Sector Write Protection *
All Sector Write Protection *
RESET
DEVICE BUS OPERATION
is held low or rising edge of AVD pulse whichever comes first. Data is latched on the 1st rising edge of WE.
or active edge of CLK while AVD is held low whichever happens first. Data is latched on the 1st rising edge of WE.
1
1
IL
1
IL
, SA0-SA3 and SA266-SA269 are protected. At ACC=V
Operation
, H = V
IL
if OE is V
IH
, X = V
IL
2
2
, OE at V
3
4
IL
4
3
4
MBM29BS/FS12DH User Bus Operations Table
or V
IH
2
2
,
IH
initiates the write operations.
CE OE WE WP ACC A
H
X
X
X
H
X
H
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
= Pulse input. See “ DC CHARACTERISTICS” for voltage levels.
H
H
H
H
H
H
H
H
L
X
X
X
X
X
L
X
X
X
X
X
X
X
H
X
H
X
X
X
H
H
H
H
H
H
X
H
X
X
X
L
L
X*
X*
X*
X*
X*
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
L
2
2
2
2
2
H*
H*
H*
H*
H*
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
L
2
2
2
2
2
MBM29BS/FS12DH
Addr In
Addr In
Addr In
Addr In
Addr In
Addr In
Addr In
Addr In
IL
22
, all sectors are protected.
to A
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
DQ
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
15
D
D
D
D
D
D
D
D
X
X
X
X
X
to DQ
OUT
OUT
OUT
IN
IN
IN
IN
IN
0
CLK AVD RESET
H/L
H/L
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
H
X
X
H
X
X
X
X
X
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
15
7