The Intel PXA255A0E400 is a processor from the Intel XScale family, building upon the PXA250 series and targeting mobile and embedded applications. This processor offers improvements in performance and power efficiency compared to its predecessors. Based on the ARMv5TE instruction set architecture, it was commonly used in PDAs, handheld devices, and other portable systems.

Applications

• Personal Digital Assistants (PDAs): Enhanced performance for demanding PDA applications, such as multimedia playback and complex calculations.
• Handheld Computers: Used in handheld computers requiring faster processing speeds for data collection and analysis.
• Mobile Gaming Devices: Found in mobile gaming devices, enabling more complex games and improved graphics performance.
• Industrial Control Systems: Implemented in industrial control systems needing higher processing power for real-time data analysis.
• Thin Clients: Employed in thin clients requiring faster processing for remote desktop applications and multimedia streaming.

Features

• XScale Architecture: Utilizes the Intel XScale microarchitecture, optimized for mobile performance and power efficiency.
• ARMv5TE Instruction Set: Supports the ARMv5TE instruction set, ensuring compatibility with existing software.
• 400 MHz Clock Speed: Operates at a clock speed of 400 MHz, providing sufficient processing power for a variety of mobile applications.
• Integrated Memory Controller: Includes an integrated memory controller for interfacing with external memory devices (SDRAM, Flash).
• Power Management Features: Advanced power management features to minimize power consumption and extend battery life.
• Peripheral Interfaces: Offers a variety of peripheral interfaces, such as UART, USB, and GPIO, for connecting to external peripherals.

Benefits

• Enhanced Performance: 400 MHz clock speed offers improved performance compared to slower XScale processors.
• Low Power Consumption: Optimized for low power consumption, making it ideal for battery-powered devices.
• Compact Size: Small package size enables integration into compact devices.
• Software Compatibility: Compatible with a wide range of software developed for the ARM architecture.
• Integrated Peripherals: Integrated peripherals reduce the need for external components, simplifying system design.

The PXA255A0E400 typically uses external SDRAM and Flash memory for program and data storage. It supported various operating systems commonly used in mobile devices, including Windows CE and embedded Linux. Additional technical specifications, including detailed power consumption figures and memory interface details, can be found in the official Intel documentation for the PXA255 family. Power supply details are available in the official datasheet.