音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

MT28F400B5 Datasheet

  • MT28F400B5

  • FLASH MEMORY

  • 32頁

  • MICRON

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

4Mb
SMART 5 BOOT BLOCK FLASH MEMORY
FLASH MEMORY
MT28F004B5
MT28F400B5
5V Only, Dual Supply (Smart 5)
0.3碌m Process Technology
FEATURES
鈥?Seven erase blocks:
16KB/8K-word boot block (protected)
Two 8KB/4K-word parameter blocks
Four main memory blocks
鈥?Smart 5 technology (B5):
5V 鹵10% V
CC
5V 鹵10% V
PP
application/production
programming
12V 鹵5% V
PP
compatibility production
programming
鈥?Address access times: 60ns, 80ns
鈥?100,000 ERASE cycles
鈥?Industry-standard pinouts
鈥?Inputs and outputs are fully TTL-compatible
鈥?Automated write and erase algorithm
鈥?Two-cycle WRITE/ERASE sequence
鈥?Byte- or word-wide READ and WRITE
(MT28F400B5, 256K x 16/512K x 8)
鈥?Byte-wide READ and WRITE only
(MT28F004B5, 512K x 8)
鈥?TSOP and SOP packaging options
40-Pin TSOP Type I 48-Pin TSOP Type I
44-Pin SOP
GENERAL DESCRIPTION
The MT28F004B5 (x8) and MT28F400B5 (x16, x8)
are nonvolatile, electrically block-erasable (flash), pro-
grammable, read-only memories containing 4,194,304
bits organized as 262,144 words (16 bits) or 524,288
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 production program-
ming. For backward compatibility with SmartVoltage
technology, 12V V
PP
is supported for a maximum of 100
cycles and may be connected for up to 100 cumulative
hours. These devices are fabricated with Micron鈥檚 ad-
vanced CMOS floating-gate process.
The MT28F004B5 and MT28F400B5 are organized
into seven separately erasable blocks. To ensure that
critical firmware is protected from accidental erasure or
overwrite, the devices feature a hardware-protected
boot block. Writing or erasing the boot block requires
either applying a super-voltage to the RP# pin or driv-
ing WP# HIGH in addition to executing the normal
write or erase sequences. 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鈥檚 Web site (www.micron.com/
flash/htmls/datasheets.html)p for the latest data sheet.
OPTIONS
鈥?Timing
60ns access
80ns access
80ns access
鈥?Configurations
512K x 8
256K x 16/512K x 8
鈥?Boot Block Starting Word Address
Top (3FFFFH)
Bottom (00000H)
鈥?Operating Temperature Range
Commercial (0擄C to +70擄C)
Extended (-40擄C to +85擄C)
鈥?Packages
Plastic 44-pin SOP (600 mil)
Plastic 48-pin TSOP Type 1
(12mm x 20mm)
Plastic 40-pin TSOP
(10mm x 20mm)
Part Number Example:
MARKING
-6
-8
-8 ET
MT28F004B5
MT28F400B5
T
B
None
ET
SG
WG
VG
MT28F400B5SG-8 T
4Mb Smart 5 Boot Block Flash Memory
F44_B.p65 鈥?Rev. 7/02
1
Micron Technology, Inc., reserves the right to change products or specifications without notice.
漏2002, Micron Technology, Inc.
PRODUCTS AND SPECIFICATIONS DISCUSSED HEREIN ARE SUBJECT TO CHANGE BY MICRON WITHOUT NOTICE.

MT28F400B5相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！