AB28F400BX-T90 Ver la hoja de datos (PDF) - Intel
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AB28F400BX-T90 Datasheet PDF : 34 Pages
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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
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