8Mb
SMART 5 BOOT BLOCK FLASH MEMORY
FLASH MEMORY
FEATURES
• Eleven erase blocks:
16KB/8K-word boot block (protected)
Two 8KB/4K-word parameter blocks
• Eight main memory blocks
• Smart 5 technology (B5):
5V ±10% V
CC
5V ±10% V
PP
application/
production programming
1
• Advanced 0.18µm CMOS floating-gate process
• Compatible with 0.3µm Smart 5 device
• Address access time: 80ns
• 100,000 ERASE cycles
• Industry-standard pinouts
• Automated write and erase algorithm
• Two-cycle WRITE/ERASE sequence
• TSOP and SOP packaging options
• Byte- or word-wide READ and WRITE
(MT28F800B5, 1 Meg x 8/512K x 16)
MT28F008B5
MT28F800B5
5V Only, Dual Supply (Smart 5)
0.18µm Process Technology
40-Pin TSOP Type I
48-Pin TSOP Type I
44-Pin SOP
2
GENERAL DESCRIPTION
The MT28F008B5 (x8) and MT28F800B5 (x16/x8)
are nonvolatile, electrically block-erasable (Flash),
programmable read-only memories containing
8,388,608 bits organized as 524,288 words (16 bits) or
1,048,576 bytes (8 bits). Writing or erasing the device is
done with a 5V V
PP
voltage, while all operations are
performed with a 5V V
CC
. Due to process technology
advances, 5V V
PP
is optimal for application and pro-
duction programming. These devices are fabricated
with Micron’s advanced 0.18µm CMOS floating-gate
process.
The MT28F008B5 and MT28F800B5 are organized
into eleven separately erasable blocks. To ensure that
critical firmware is protected from accidental erasure
or overwrite, the devices feature a hardware-protected
boot block. This block may be used to store code
implemented in low-level system recovery. The
remaining blocks vary in density and are written and
erased with no additional security measures.
Please refer to Micron’s Web site (www.micron.com/
flash)
for the latest data sheet.
OPTIONS
• Timing
80ns
• Configurations
1 Meg x 8
512K x 16/1 Meg x 8
• Boot Block Starting Word Address
Top
Bottom
• Operating Temperature Range
Commercial (0ºC to +70ºC)
Extended (-40ºC to +85ºC)
• Packages
MT28F008B5
Plastic 40-pin TSOP Type I
(10mm x 29mm)
MT28F800B5
Plastic 48-pin TSOP Type I
(12mm x 20mm)
Plastic 44-pin SOP (600 mil)
Notes:
MARKING
-8
MT28F008B5
MT28F800B5
T
B
None
ET
VG
WG
SG
2
1.
This generation of devices does not support 12V V
PP
compatibility production programming; however, 5V
V
PP
application production programming can be used
with no loss of performance.
2.
Contact factory for availability.
Part Number Example:
MT28F800B5WG-8 BET
8Mb Smart 5 Boot Block Flash Memory
MT28F800B5_3.fm - Rev. 3, Pub. 8/2002
1
Micron Technology, Inc. Reserves the right to change products or specifications without notice.
©2002, Micron Technology Inc.
PRODUCTS AND SPECIFICATIONS DISCUSSED HEREIN ARE SUBJECT TO CHANGE BY MICRON WITHOUT NOTICE
.
MICRON [ MICRON TECHNOLOGY ]
