A28F400BX-B MEMORY Datasheet

A28F400BX-B Datasheet PDF, Equivalent


Part Number

A28F400BX-B

Description

4-MBIT BOOT BLOCK FLASH MEMORY

Manufacture

Intel

Total Page 30 Pages
PDF Download
Download A28F400BX-B Datasheet PDF


A28F400BX-B
A28F400BX-T B
4-MBIT (256K x16 512K x8) BOOT BLOCK FLASH
MEMORY FAMILY
Automotive
Y x8 x16 Input Output Architecture
A28F400BX-T A28F400BX-B
For High Performance and High
Integration 16-bit and 32-bit CPUs
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
1 000 Block Erase Cycles
Y Automated Word Byte Write and Block
Erase
Command User Interface
Status Register
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
90 ns Maximum Access Time
45 ns Maximum Output Enable Time
Y Low Power Consumption
25 mA Typical Active Read Current
Y Deep Power-Down Reset Input
Acts as Reset for Boot Operations
Y Automotive Temperature Operation
b40 C to a125 C
Y Write Protection for Boot Block
Y Hardware Data Protection Feature
Erase Write Lockout During Power
Transitions
Y Industry Standard Surface Mount
Packaging
JEDEC ROM Compatible
44-Lead PSOP
Y 12V Word Byte Write and Block Erase
VPP e 12V g5% Standard
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 290501-003

A28F400BX-B
A28F400BX-T B
Intel’s 4-Mbit Flash Memory Family is an extension of the Boot Block Architecture which includes block-
selective erasure automated write and erase operations and standard microprocessor interface The 4-Mbit
Flash Memory Family enhances the Boot Block Architecture by adding more density and blocks x8 x16 input
output control very high speed low power an industry standard ROM compatible pinout and surface mount
packaging The 4-Mbit flash family is an easy upgrade from Intel’s 2-Mbit Boot Block Flash Memory Family
The Intel A28F400BX-T B are 16-bit wide flash memory offerings optimized to meet the rigorous environmen-
tal requirements of Automotive Applications These high density flash memories provide user selectable bus
operation for either 8-bit or 16-bit applications The A28F400BX-T and A28F400BX-B are 4 194 304-bit non-
volatile memories organized as either 524 288 bytes or 262 144 words of information They are offered in 44-
Lead plastic SOP packages The x8 x16 pinout conforms to the industry standard ROM EPROM pinout Read
and Write characteristics are guaranteed over the ambient temperature range of b40 C to a125 C
These devices use an integrated Command User Interface (CUI) and Write State Machine (WSM) for simplified
word byte write and block erasure The A28F400BX-T provide block locations compatible with Intel’s
MCS-186 family 80286 i386TM i486TM i860TM and 80960CA microprocessors The A28F400BX-B provides
compatibility with Intel’s 80960KX and 80960SX families as well as other embedded microprocessors
The boot block includes a data protection feature to protect the boot code in critical applications With a
maximum access time of 90 ns these 4-Mbit flash devices are very high performance memories which
interface at zero-wait-state to a wide range of microprocessors and microcontrollers
Manufactured on Intel’s 0 8 micron ETOXTM III process the 4-Mbit flash memory family provides world class
quality reliability and cost-effectiveness at the 4-Mbit density level
2


Features A28F400BX-T B 4-MBIT (256K x16 512K x8) BOOT BLOCK FLASH MEMORY FAMILY Automoti ve Y x8 x16 Input Output Architecture A28F400BX-T A28F400BX-B For High Perfor mance and High Integration 16-bit and 3 2-bit CPUs Y Optimized High Density Blo cked Architecture One 16 KB Protected B oot Block Two 8 KB Parameter Blocks One 96 KB Main Block Three 128 KB Main Blo cks Top or Bottom Boot Locations Y Exte nded Cycling Capability 1 000 Block Era se Cycles Y Automated Word Byte Write a nd Block Erase Command User Interface S tatus Register Erase Suspend Capability Y SRAM-Compatible Write Interface Y Au tomatic Power Savings Feature 1 mA Typi cal ICC Active Current in Static Operat ion Y Very High-Performance Read 90 ns Maximum Access Time 45 ns Maximum Outp ut Enable Time Y Low Power Consumption 25 mA Typical Active Read Current Y Dee p Power-Down Reset Input Acts as Reset for Boot Operations Y Automotive Temper ature Operation b40 C to a125 C Y Write Protection for Boot Block Y Hardware Data Protection Feature E.
Keywords A28F400BX-B, datasheet, pdf, Intel, 4-MBIT, BOOT, BLOCK, FLASH, MEMORY, 28F400BX-B, 8F400BX-B, F400BX-B, A28F400BX-, A28F400BX, A28F400B, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




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