MT28F002B3 Micron Semiconductor Products, Inc., MT28F002B3 Datasheet - Page 14

• Manufacturer Part Number: MT28F002B3
• Description: 2Mb Smart 3 Boot Block Flash Memory
• Manufacturer: Micron Semiconductor Products, Inc.

WRITE/ERASE CYCLE ENDURANCE
and fabricated to meet advanced firmware storage re-
quirements. To ensure this level of reliability, V
be at 3.3V 0.3V or 5V
cycles. For SmartVoltage-compatible production pro-
gramming, 12V V
cycles and may be connected for up to 100 cumulative
hours. Operation outside these limits may reduce the
number of write and erase cycles that can be performed
on the device.
POWER USAGE
power-saving features that may be utilized in the array
read mode to conserve power. Deep power-down mode
is enabled by bringing RP# LOW. Current draw (I
this mode is a maximum of 8 A at 3.3V V
LOW, the device will enter idle current mode when it
is not being accessed. In this mode, the maximum I
current is 2mA at 3.3V V
device will enter standby mode. In this mode, maxi-
mum I
HIGH during a WRITE or ERASE, the ISM will continue
to operate, and the device will consume the respective
active power until the WRITE or ERASE is
completed.
2Mb Smart 3 Boot Block Flash Memory
F48.p65 – Rev. 1/00
The MT28F002B3 and MT28F200B3 are designed
The MT28F002B3 and MT28F200B3 offer several
CC
current is 100 A at 3.3V V
PP
is supported for a maximum of 100
CC
10% during write or erase
. When CE# is HIGH, the
CC
. If CE# is brought
CC
. With CE#
PP
CC
must
SMART 3 BOOT BLOCK FLASH MEMORY
) in
CC
14
POWER-UP
tions is minimized since two consecutive cycles are
required to execute either operation. However, to reset
the ISM and to provide additional protection while V
is ramping, one of the following conditions must be
met:
and the device will enter the array read mode.
Address
(3.3V)
Data
RP#
V
The likelihood of unwanted WRITE or ERASE opera-
• RP# must be held LOW until V
• CE# or WE# may be held HIGH and
After a power-up or RESET, the status register is reset,
NOTE:
CC
Power-Up/Reset Timing Diagram
Micron Technology, Inc., reserves the right to change products or specifications without notice.
functional level; or
RP# must be toggled from V
1. V
goes HIGH.
CC
Note 1
must be within the valid operating range before RP#
Figure 2
t
RWH
t
AA
VALID
CC
VALID
-GND-V
CC
©2000, Micron Technology, Inc.
is at valid
UNDEFINED
CC
2Mb
.
CC