AT91SAM7S256-AU

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AT91SAM7S256-AU

ARM Microcontrollers - MCU

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Description

The AT91SAM7S256-AU is a microcontroller from the Atmel (now part of Microchip Technology) SAM7 series, based on the ARM7TDMI core. It features a 32-bit RISC architecture, offering high performance with low power consumption. This model includes 256 KB of Flash memory and 64 KB of SRAM, making it suitable for a wide range of applications, including embedded systems.
Key features include a rich set of peripherals such as USB 2.0, SPI, I2C, UART, and multiple GPIOs. It operates at a maximum clock speed of 55 MHz and supports both JTAG and SWD for debugging. The device is particularly notable for its advanced power management capabilities, enabling efficient operation in battery-powered applications.
The AT91SAM7S256-AU is commonly used in consumer electronics, industrial controls, and medical devices due to its versatility and scalability. Development is facilitated by various development kits and software tools, including the Atmel Studio, which provides an integrated environment for programming and debugging.

Features

The AT91SAM7S256-AU is a microcontroller from Atmel (now part of Microchip Technology) based on the ARM7TDMI architecture. Key features include:
1. Core: 32-bit ARM7TDMI core, running at up to 55 MHz.
2. Flash Memory: 256 KB of in-system programmable Flash memory.
3. RAM: 64 KB of SRAM.
4. I/O Ports: 32 general-purpose I/O pins.
5. Communication Interfaces:
- USART (2 channels)
- SPI (1 channel)
- TWI (I2C compatible)
6. Timers: Three 32-bit timers and an additional watchdog timer.
7. ADC: 10-bit Analog-to-Digital Converter with up to 8 channels.
8. USB: Full-speed USB 2.0 device interface.
9. Low Power Modes: Various power-saving modes for energy efficiency.
10. Development Support: Compatible with a variety of development tools and IDEs.
This microcontroller is suitable for embedded applications requiring a balance of performance and low power consumption.

Package

The AT91SAM7S256-AU is packaged in a 64-pin LQFP (Low-Profile Quad Flat Package) format. This surface-mount package has a dimension of 10 mm x 10 mm and a pitch of 0.5 mm, suitable for various applications in embedded systems.

Pinout

The AT91SAM7S256-AU is a 32-bit ARM7 microcontroller from Atmel (now part of Microchip Technology). It features a pin count of 64 pins in a LQFP (Low-Profile Quad Flat Package) form factor.
Key functions of the AT91SAM7S256-AU include:
- CPU: ARM7TDMI core, running at up to 55 MHz.
- Flash Memory: 256 KB of embedded flash for program storage.
- RAM: 64 KB of SRAM for data storage.
- Peripherals: Multiple interfaces including USART, SPI, TWI (I2C), and a 10-bit ADC.
- Timers: Three 16-bit timers and a watchdog timer.
- GPIO: Up to 48 general-purpose input/output pins.
- USB: Full-speed USB 2.0 device controller.
- Power Saving: Various low-power modes for energy efficiency.
This microcontroller is widely used in embedded systems for applications requiring processing power and connectivity.

Manufacturer

The AT91SAM7S256-AU is manufactured by Microchip Technology Inc., an American publicly traded corporation. Microchip specializes in designing and manufacturing microcontrollers, microprocessors, and other embedded control products. Founded in 1989, the company is known for providing a wide range of semiconductor solutions, including analog and interface products, as well as development tools and software. Microchip serves various industries, including automotive, industrial, and consumer electronics, and is recognized for its commitment to innovation and support for embedded system development.

Application

The AT91SAM7S256-AU microcontroller is commonly used in embedded systems applications such as industrial automation, consumer electronics, medical devices, and communication systems. Its features make it suitable for control systems, data acquisition, motor control, and portable devices. The integrated USB support also enables applications in USB peripherals and connectivity solutions.

Equivalent

The AT91SAM7S256-AU is an ARM7-based microcontroller. Equivalent products include:
1. LPC2138/48 (NXP)
2. STM32F103C8 (STMicroelectronics)
3. ATSAM3S1A (Microchip)
4. MK20DX128 (NXP)
5. MSP430F5529 (Texas Instruments)
These alternatives share similar features, such as ARM architecture, flash memory, and peripheral compatibility. Always verify specific requirements for pinout, memory, and peripherals before substituting.

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