PA28F400BX-B120 Datasheet PDF - Intel Corporation
| Part Number | PA28F400BX-B120 | |
| Description | 4-MBIT (256K X 16/ 512K X 8) BOOT BLOCK FLASH MEMORY FAMILY | |
| Manufacturers | Intel Corporation | |
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There is a preview and PA28F400BX-B120 download ( pdf file ) link at the bottom of this page. Total 30 Pages | ||
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4-MBIT (256K X 16 512K X 8)
BOOT BLOCK
FLASH MEMORY FAMILY
28F400BX-T B 28F004BX-T B
Y x8 x16 Input Output Architecture
28F400BX-T 28F400BX-B
For High Performance and High
Integration 16-bit and 32-bit CPUs
Y x8-only Input Output Architecture
28F004BX-T 28F004BX-B
For Space Constrained 8-bit
Applications
Y Upgradeable to Intel’s Smart Voltage
Products
Y Optimized High-Density Blocked
Architecture
One 16-KB Protected Boot Block
Two 8-KB Parameter Blocks
One 96-KB Main Block
Three 128-KB Main Blocks
Top or Bottom Boot Locations
Y Extended Cycling Capability
100 000 Block Erase Cycles
Y Automated Word Byte Write and Block
Erase
Command User Interface
Status Registers
Erase Suspend Capability
Y SRAM-Compatible Write Interface
Y Automatic Power Savings Feature
1 mA Typical ICC Active Current in
Static Operation
Y Very High-Performance Read
60 80 120 ns Maximum Access Time
30 40 40 ns Maximum Output Enable
Time
Y Low Power Consumption
20 mA Typical Active Read Current
Y Reset Deep Power-Down Input
0 2 mA ICC Typical
Acts as Reset for Boot Operations
Y Extended Temperature Operation
b40 C to a85 C
Y Write Protection for Boot Block
Y Hardware Data Protection Feature
Erase Write Lockout During Power
Transitions
Y Industry Standard Surface Mount
Packaging
28F400BX JEDEC ROM Compatible
44-Lead PSOP
56-Lead TSOP
28F004BX 40-Lead TSOP
Y 12V Word Byte Write and Block Erase
VPP e 12V g5% Standard
VPP e 12V g10% Option
Y ETOXTM III Flash Technology
5V Read
Other brands and names are the property of their respective owners
Information in this document is provided in connection with Intel products Intel assumes no liability whatsoever including infringement of any patent or
copyright for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products Intel retains the right to make
changes to these specifications at any time without notice Microcomputer Products may have minor variations to this specification known as errata
COPYRIGHT INTEL CORPORATION 1995
November 1995
Order Number 290451-005
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28F400BX-T B 28F004BX-T B
1 3 Applications
The 4-Mbit boot block flash memory family com-
bines high density high performance cost-effective
flash memories with blocking and hardware protec-
tion capabilities Its flexibility and versatility will re-
duce costs throughout the product life cycle Flash
memory is ideal for Just-In-Time production flow re-
ducing system inventory and costs and eliminating
component handling during the production phase
During the product life cycle when code updates or
feature enhancements become necessary flash
memory will reduce the update costs by allowing ei-
ther a user-performed code change via floppy disk
or a remote code change via a serial link The 4-Mbit
boot block flash memory family provides full func-
tion blocked flash memories suitable for a wide
range of applications These applications include
Extended PC BIOS and ROM-able applications
storage Digital Cellular Phone program and data
storage Telecommunication boot firmware Print-
er firmware font storage and various other embed-
ded applications where both program and data stor-
age are required
Reprogrammable systems such as personal com-
puters are ideal applications for the 4-Mbit flash
memory products Portable and handheld personal
computer applications are becoming more complex
with the addition of power management software to
take advantage of the latest microprocessor tech-
nology the availability of ROM-based application
software pen tablet code for electronic hand writing
and diagnostic code Figure 1 shows an example of
a 28F400BX-T application
This increase in software sophistication augments
the probability that a code update will be required
after the PC is shipped The 4-Mbit flash memory
products provide an inexpensive update solution for
the notebook and handheld personal computers
while extending their product lifetime Furthermore
the 4-Mbit flash memory products’ power-down
mode provides added flexibility for these battery-
operated portable designs which require operation
at very low power levels
The 4-Mbit flash memory products also provide ex-
cellent design solutions for Digital Cellular Phone
and Telecommunication switching applications re-
quiring high performance high density storage capa-
bility coupled with modular software designs and a
small form factor package (X8-only bus) The
4-Mbit’s blocking scheme allows for an easy seg-
mentation of the embedded code with 16 Kbytes of
Hardware-Protected Boot code 4 Main Blocks of
program code and 2 Parameter Blocks of 8 Kbytes
each for frequently updatable data storage and diag-
nostic messages (e g phone numbers authoriza-
tion codes) Figure 2 is an example of such an appli-
cation with the 28F004BX-T
These are a few actual examples of the wide range
of applications for the 4-Mbit Boot Block flash mem-
ory family which enable system designers achieve
the best possible product design Only your imagina-
tion limits the applicability of such a versatile product
family
5
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| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ PA28F400BX-B120.PDF Datasheet ] | |
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