The AM29F400BT-90EFT is a 4 Mbit (512 K x 8-bit/256 K x 16-bit) CMOS 5.0 Volt-only, Sector Erase Flash memory device manufactured by Cypress Semiconductor (formerly AMD). It is designed for high-performance embedded systems requiring non-volatile data storage. The "90EFT" part of the identifier specifies the access time (90ns) and the package type.

Applications

  
• Embedded systems: For storing firmware, configuration data, and application code in embedded devices.
  
• Networking equipment: For storing boot code, operating system images, and configuration files in routers, switches, and other network devices.
  
• Industrial control systems: For storing program code, calibration data, and historical data in industrial automation equipment.
  
• Consumer electronics: For storing firmware, audio files, and image data in digital cameras, MP3 players, and other consumer devices.
  
• Automotive electronics: For storing engine control unit (ECU) code, navigation data, and other critical data in automotive systems.

Features

  
• 5.0 Volt-only operation: Simplifies system design and reduces power consumption.
  
• Sector erase architecture: Allows individual sectors to be erased and reprogrammed without affecting other sectors.
  
• Fast access time: Provides quick access to stored data, improving system performance.
  
• Low power consumption: Reduces overall system power requirements, extending battery life in portable applications.
  
• CMOS technology: Provides high performance and low power consumption.

Benefits

  
• Flexible memory management: Sector erase architecture allows for efficient storage and updating of data.
  
• Fast system boot-up: Quick access time ensures rapid system startup and program execution.
  
• Extended battery life: Low power consumption contributes to longer battery life in portable devices.
  
• Increased system reliability: Non-volatile storage ensures data retention even when power is removed.
  
• Simplified system design: Single-voltage operation reduces the complexity of power supply circuitry.

Specific Details: The AM29F400BT-90EFT utilizes a sector erase architecture, which allows for individual memory blocks to be erased without affecting other memory locations. This is critical for applications requiring frequent data updates. Refer to the Cypress Semiconductor datasheet for complete specifications, including detailed timing diagrams, electrical characteristics, and package dimensions. This part is typically used where in-system programming capability is required. EFT often refers to extended functional test.