Manufacturer Part Number
AT91SAM7S256-MU
Manufacturer
Microchip Technology
Introduction
The AT91SAM7S256-MU is a high-performance, embedded microcontroller based on the ARM7TDMI processor, optimized for low-power and high-speed computing needs, specifically designed for a wide range of embedded applications.
Product Features and Performance
Core Processor: ARM7® with 16/32-Bit flexibility
Speed: 55MHz, enabling quick processing and response times
Connectivity: I2C, SPI, SSC, UART/USART, USB for versatile interfacing options
Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT for enhanced functionality
Number of I/O: 32, providing ample connectivity
Program Memory Size: 256KB FLASH, catering to complex programs
RAM Size: 64K x 8, sufficient for intermediate data processing
Voltage Supply (Vcc/Vdd): 1.65V ~ 1.95V, ensuring low power consumption
Data Converters: A/D 8x10b, for interfacing with analog sensors
Oscillator Type: Internal, simplifies circuit design
Operating Temperature: -40°C ~ 85°C, suitable for harsh environments
Mounting Type: Surface Mount, ideal for compact PCB designs
Package / Case: 64-VFQFN Exposed Pad, for efficient heat dissipation
Product Advantages
Integrated USB 2.0 Full Speed Device Port for direct PC communications
Low power consumption enhances battery life in portable applications
Comprehensive set of peripherals allows for high-level system integration
Internal oscillator reduces the need for external components
Key Technical Parameters
Core Size: 16/32-Bit
Speed: 55MHz
Program Memory: 256KB FLASH
RAM: 64KB
Supply Voltage: 1.65V ~ 1.95V
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
Brown-out Detect/Reset and POR for reliable operation under variable power conditions
Watchdog Timer (WDT) to ensure system recovery from fault states
Compatibility
Easy integration with various peripherals and external devices through I2C, SPI, SSC, UART/USART, USB interfaces
Application Areas
Industrial control systems
Medical devices
Consumer electronics
Automotive applications
Portable devices
Product Lifecycle
This product is Obsolete, suggesting that designers should consider alternative solutions for new designs
Availability of replacements or upgrades needs to be checked with Microchip Technology for long-term projects
Several Key Reasons to Choose This Product
ARM7® core offers a balance between performance and power consumption
High integration reduces system BOM cost and design complexity
Wide operating temperature range makes it suitable for harsh environment applications
Obsolete status necessitates careful stock management or seeking newer alternatives for future designs
Comprehensive connectivity options enhance interfacing with various digital and analog devices
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