AT91SAM7X256C-CUR

Product Overview

• Category: Microcontroller
• Use: Embedded systems, Internet of Things (IoT) devices
• Characteristics: High-performance, low-power consumption, extensive peripheral set
• Package: LQFP (Low-profile Quad Flat Package)
• Essence: ARM7TDMI-S based microcontroller with 256KB Flash memory and 64KB SRAM
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Architecture: ARM7TDMI-S
• Clock Speed: Up to 55 MHz
• Flash Memory: 256KB
• SRAM: 64KB
• Operating Voltage: 1.65V to 3.6V
• Operating Temperature: -40°C to +85°C
• Digital I/O Pins: 53
• Analog Inputs: 8
• Serial Communication Interfaces: USART, SPI, TWI (I2C)
• Timers/Counters: 4 x 16-bit, 1 x 8-channel PWM
• Analog-to-Digital Converter (ADC): 10-bit resolution, up to 8 channels
• Power Supply: Single power supply, 3.3V

Pin Configuration

The AT91SAM7X256C-CUR microcontroller has a total of 100 pins. The pin configuration is as follows:

• Pins 1-20: Digital I/O pins
• Pins 21-28: Analog input pins
• Pins 29-36: Serial communication interface pins
• Pins 37-44: Timer/counter and PWM pins
• Pins 45-52: ADC pins
• Pins 53-100: Reserved for other functions

Functional Features

• High-performance ARM7TDMI-S core for efficient processing
• Extensive peripheral set for versatile applications
• Low-power consumption for energy-efficient designs
• Flexible clocking options for optimized performance
• Multiple serial communication interfaces for easy integration with other devices
• Rich set of timers/counters and PWM channels for precise timing control
• Analog-to-Digital Converter (ADC) for accurate analog signal acquisition
• Built-in power management features for enhanced power efficiency

Advantages and Disadvantages

Advantages

• Powerful processing capabilities with the ARM7TDMI-S core
• Versatile peripheral set enables a wide range of applications
• Low-power consumption extends battery life in portable devices
• Ample Flash memory and SRAM for storing program code and data
• Robust development ecosystem with extensive software libraries and tools

Disadvantages

• Limited number of digital I/O pins may restrict the complexity of some projects
• Lack of built-in Ethernet or Wi-Fi connectivity requires additional components for networking functionality

Working Principles

The AT91SAM7X256C-CUR microcontroller operates based on the ARM7TDMI-S architecture. It executes instructions fetched from the Flash memory and interacts with various peripherals to perform desired tasks. The clock speed determines the execution speed of instructions, while the low-power design ensures efficient operation.

Detailed Application Field Plans

The AT91SAM7X256C-CUR microcontroller finds applications in various fields, including:

1. Industrial automation: Control systems, motor drives, and robotics.
2. Consumer electronics: Smart home devices, wearable technology, and gaming consoles.
3. Automotive: Engine control units, dashboard displays, and infotainment systems.
4. Internet of Things (IoT): Connected devices, sensor networks, and data acquisition systems.
5. Medical devices: Patient monitoring systems, diagnostic equipment, and implantable devices.

Detailed and Complete Alternative Models

1. AT91SAM7X512C-CUR: Similar to AT91SAM7X256C-CUR but with 512KB Flash memory and 64KB SRAM.
2. AT91SAM7S256C-CUR: Lower-cost alternative with 256KB Flash memory, 32KB SRAM, and reduced peripheral set.
3. ATSAM4S16C-CUR: Upgraded version with ARM Cortex-M4 core, 16KB Flash memory, and 4KB SRAM.

(Note: The above alternative models are just a few examples; there are several other alternatives available in the market.)

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