MBM29LV001TC Fujitsu Microelectronics, Inc., MBM29LV001TC Datasheet - Page 18

• Manufacturer Part Number: MBM29LV001TC
• Description: 1m 128k X 8 Bit
• Manufacturer: Fujitsu Microelectronics, Inc.

18
MBM29LV001TC
Extended Command
(1) Fast Mode
(2) Fast Programming
(3) Extended Sector Protection
MBM29LV001TC/BC has Fast Mode function. This mode dispenses with the initial two unclock cycles
required in the standard program command sequence by writing Fast Mode command into the command
register. In this mode, the required bus cycle for programming is two cycles instead of four bus cycles in
standard program command. (Do not write erase command in this mode.) The read operation is also executed
after exiting this mode. To exit this mode, it is necessary to write Fast Mode Reset command into the command
register. (Refer to the Figure 24 Extended algorithm.) The V
Fast Mode.
During Fast Mode, the programming can be executed with two bus cycles operation. The Embedded Program
Algorithm is executed by writing program set-up command (A0H) and data write cycles (PA/PD). (Refer to
the Figure 24 Extended algorithm.)
In addition to normal sector protection, the MBM29LV001TC/BC has Extended Sector Protection as extended
function. This function enable to protect sector by forcing V
Unlike conventional procedure, it is not necessary to force V
RESET pin requires V
pin. With this condition, the operation is initiated by writing the set-up command (60H) into the command
register. Then, the sector addresses pins (A
to the sector to be protected (recommend to set V
protect command (60H). A sector is typically protected in 150 s. To verify programming of the protection
circuitry, the sector addresses pins (A
write a command (40H). Following the command write, a logical “1” at device output DQ
protected sector in the read operation. If the output data is logical “0”, please repeat to write extended sector
protect command (60H) again. To terminate the operation, it is necessary to set RESET pin to V
ID
for sector protection in this mode. The extended sector protect requires V
-55/-70
/MBM29LV001BC
16
, A
15
16
, A
, A
14
15
, A
IL
, A
for the other addresses pins), and write extended sector
13
14
and A
, A
13
ID
and A
CC
12
on RESET pin and write a commnad sequence.
) and (A
ID
active current is required even CE = V
and control timing for control pins. The only
12
) and (A
6
, A
1
-55/-70
, A
6
, A
0
) = (0, 1, 0) should be set and
1
, A
0
) = (0, 1, 0) should be set
0
will produce for
ID
on RESET
IH
.
IH
during