AT91SAM9XE256B-CU

The AT91SAM9XE256B-CU is a microcontroller from Microchip Technology's SAM9 series, featuring an ARM926EJ-S core. It operates at a maximum frequency of 400 MHz and offers 256 KB of SRAM and 256 KB of flash memory. This device is designed for embedded applications requiring efficient processing power, memory management, and connectivity options.
Key features include a rich set of peripherals such as USB Host/Device, Ethernet MAC, SPI, I2C, and UART interfaces, making it suitable for industrial, automotive, and consumer applications. The microcontroller supports multiple power-saving modes, enhancing its efficiency in battery-operated devices.
With its integrated DMA controller, it allows for high-speed data transfers, while the LCD controller facilitates direct connection to displays. The AT91SAM9XE256B-CU is suitable for applications in product development requiring robust processing capabilities, reliable performance, and extensive peripheral support. Its versatility and performance make it a popular choice for developers looking to create sophisticated embedded systems.

The AT91SAM9XE256B-CU is a microcontroller from Microchip's SAM9 series, featuring an ARM926EJ-S core running at up to 400 MHz. Key features include:
- 256 KB of Embedded SRAM: Provides fast access memory for applications.
- 2 MB of Embedded Flash: Non-volatile storage for code and data.
- Peripheral Interfaces: Includes USB 2.0 host/device, Ethernet, and multiple serial communication interfaces (USART, SPI, I2C).
- LCD Controller: Supports TFT displays for graphical user interfaces.
- DMA Controller: Facilitates efficient data transfer, enhancing performance.
- Boot Options: Flexible booting through various interfaces like NAND flash, SD/MMC, and USART.
- Low Power Modes: Designed for power efficiency, useful in battery-operated devices.
- Operating Temperature Range: Typically supports -40°C to 85°C, suitable for industrial applications.
- Rich Development Ecosystem: Supported by various development tools and software libraries.
These features make the AT91SAM9XE256B-CU suitable for a wide range of embedded applications, including industrial control, consumer electronics, and communication systems.

The AT91SAM9XE256B-CU is packaged in a LQFP (Low-Profile Quad Flat Package) with a 144-pin configuration.

The AT91SAM9XE256B-CU is a microcontroller from Atmel's SAM9 series, featuring a total of 144 pins in a LQFP (Low-Profile Quad Flat Package).
Key functions of the pins include:
- Digital I/O: General-purpose I/O pins for interfacing with external devices.
- USART: Multiple Universal Synchronous/Asynchronous Receiver/Transmitters for serial communication.
- SPI: Serial Peripheral Interface for high-speed communication with peripherals.
- I2C: Inter-Integrated Circuit interface for connecting low-speed peripherals.
- PWM: Pulse Width Modulation outputs for motor control or signal generation.
- ADC: Analog-to-Digital Converter inputs for analog signals.
- SDCard: Interface for secure digital memory cards.
- Ethernet: Pins for Ethernet connectivity, supporting network applications.
- USB: USB Host/Device functionality for connecting to USB devices.
- JTAG: For debugging and programming.
The AT91SAM9XE256B-CU is designed for embedded applications requiring a balance of performance, connectivity, and integration.

The AT91SAM9XE256B-CU is manufactured by Microchip Technology Inc., a leading American semiconductor company. Founded in 1989, Microchip specializes in designing and manufacturing microcontrollers, analog semiconductors, and development tools. The company is known for its expertise in embedded control applications and provides solutions for various industries, including automotive, industrial, consumer, and telecommunications. Microchip offers a wide range of products, including 8-bit, 16-bit, and 32-bit microcontrollers, as well as digital signal controllers (DSCs) and microprocessors, like the AT91SAM series, which are based on ARM architecture.

The AT91SAM9XE256B-CU is used in various applications such as industrial automation, consumer electronics, medical devices, automotive systems, and embedded systems. Its features support networking, multimedia processing, and human-machine interfaces, making it suitable for internet-connected devices, control systems, and data acquisition applications.

The AT91SAM9XE256B-CU chip is part of the Atmel SAM9 series and its equivalents include the AT91SAM9G45, AT91SAM9G25, and AT91SAM9N12. These chips share similar ARM926EJ-S architecture and peripheral features but may have differences in flash memory, RAM, and peripheral options. Always check specific datasheets for compatibility.