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PA28F400BX-T80 from INTEL

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PA28F400BX-T80

Manufacturer: INTEL

4-MBIT (256K X 16, 512K X 8) BOOT BLOCK FLASH MEMORY FAMILY

Partnumber Manufacturer Quantity Availability
PA28F400BX-T80,PA28F400BXT80 INTEL 265 In Stock

Description and Introduction

4-MBIT (256K X 16, 512K X 8) BOOT BLOCK FLASH MEMORY FAMILY The **PA28F400BX-T80** from **Intel** is a high-performance **Flash memory** component designed for applications requiring reliable, non-volatile storage. This **4 Mbit (512K x 8)** device operates at a **5V supply voltage**, making it suitable for embedded systems, industrial controls, and legacy computing applications.  

Built with Intel’s advanced **EEPROM technology**, the PA28F400BX-T80 offers **fast access times** of **80ns**, ensuring efficient data retrieval in time-sensitive operations. It features a **byte-wide interface**, simplifying integration with 8-bit microcontrollers and processors. The component supports **block erase and programming**, enabling flexible memory management while maintaining data integrity.  

With a **wide operating temperature range** (-40°C to +85°C), this Flash memory is robust enough for harsh environments. Its **low power consumption** and **high endurance** make it ideal for applications where energy efficiency and long-term reliability are critical.  

The PA28F400BX-T80 is housed in a **32-pin PLCC package**, providing a compact footprint for space-constrained designs. As a legacy component, it remains a dependable choice for systems requiring stable, high-speed Flash memory with proven performance.  

Engineers and designers continue to value this device for its durability, ease of use, and compatibility with older architectures while meeting modern performance demands.

Application Scenarios & Design Considerations

4-MBIT (256K X 16, 512K X 8) BOOT BLOCK FLASH MEMORY FAMILY

Alternative Part Number

  • AM29F400BT-90SI --: Pin-compatible 4 Mbit flash memory with similar organization and access time, widely available as a direct substitute for the Intel 28F400 series.
  • M29F400BT-90N1 --: 4 Mbit boot-block flash in the same TSOP package with comparable timing, suitable drop-in replacement for legacy Intel flash devices.
  • SST39SF040-70-4C-PHE --: 4 Mbit flash memory with compatible interface and pinout, commonly used to replace obsolete Intel 28F400 parts in existing designs.
  • AM29F400BT-90SC --: Same 4 Mbit flash density and x8/x16 organization with compatible command set, widely available as a drop-in replacement.
  • M29F400BT-90N6 --: Equivalent 4 Mbit boot-block flash with similar pinout and timing, suitable for direct substitution.
  • SST39SF040-70-4C-PH --: 4 Mbit 5V flash with compatible interface and access speed, usable when boot-block architecture is not critical.

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