8Mb
SMART 5 BOOT BLOCK FLASH MEMORY
MT28F008B5
MT28F800B5
FLASH MEMORY
5V Only, Dual Supply (Smart 5)
0.18µm Process Technology
FEATURES
•
Eleven erase blocks:
16KB/8K-word boot block (protected)
Two 8KB/4K-word parameter blocks
Eight main memory blocks
40-Pin TSOP Type I
48-Pin TSOP Type I
•
•
Smart 5 technology (B5):
5V 10% VCC
5V 10% VPP application/
production programming1
•
•
•
•
•
•
•
•
•
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)
44-Pin SOP2
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 VPP voltage, while all operations are
performed with a 5V VCC. Due to process technology
advances, 5V VPP is optimal for application and pro-
duction programming. These devices are fabricated
with Micron’s advanced 0.18µm CMOS floating-gate
process.
OPTIONS
•
MARKING
Timing
80ns
-8
•
Configurations
1 Meg x 8
MT28F008B5
MT28F800B5
512K x 16/1 Meg x 8
Boot Block Starting Word Address
Top
•
•
•
T
B
Bottom
Operating Temperature Range
Commercial (0ºC to +70ºC)
Extended (-40ºC to +85ºC)
Packages
None
ET
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.
MT28F008B5
Plastic 40-pin TSOP Type I
(10mm x 29mm)
MT28F800B5
VG
Plastic 48-pin TSOP Type I
(12mm x 20mm)
Plastic 44-pin SOP (600 mil)
WG
SG2
Please refer to Micron’s Web site (www.micron.com/
flash) for the latest data sheet.
Notes:
1. This generation of devices does not support 12V VPP
compatibility production programming; however, 5V
VPP 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
Micron Technology, Inc. Reserves the right to change products or specifications without notice.
©2002, Micron Technology Inc.
1
PRODUCTS AND SPECIFICATIONS DISCUSSED HEREIN ARE SUBJECT TO CHANGE BY MICRON WITHOUT NOTICE.