Manufacturer Part Number
AT91SAM7S256C-AU
Manufacturer
Microchip Technology
Introduction
The AT91SAM7S256C-AU is a 16/32-bit ARM7® based microcontroller with extensive I/O capabilities and Flash memory, designed for embedded control applications.
Product Features and Performance
ARM7® Core Processor with 16/32-Bit capabilities
Running speed of 55MHz
Support for I2C, SPI, SSC, UART/USART, USB connectivity
Equipped with Brown-out Detect/Reset, DMA, POR, PWM, WDT peripherals
32 programmable I/O lines
On-chip 256KB Flash memory and 64KB RAM
10-bit A/D converter with 8 channels
Internal oscillator for clock generation
Surface Mount 64-LQFP package
Product Advantages
High integration level for complex control tasks
Versatile connectivity options for various communication needs
Ample memory size suitable for moderate to complex applications
Wide operating temperature range for harsh environments
Compact 64-LQFP (10x10) package saves space on PCB
Flash-based memory for easier program updates
Key Technical Parameters
Core Size: 16/32-Bit
Speed: 55MHz
Program Memory: 256KB Flash
RAM Size: 64KB
Number of I/O: 32
Data Converters: A/D 8x10b
Voltage Supply: 1.65V ~ 1.95V
Operating Temperature: -40°C ~ 85°C (TA)
Quality and Safety Features
Brown-out Detect/Reset ensures proper operation under fluctuating power supply
Watchdog Timer (WDT) for system integrity
Power-on Reset (POR) circuitry for reliable operation at power-up
Compatibility
Can interface with numerous standard and proprietary communication protocols due to its I2C, SPI, SSC, UART/USART, USB support
Application Areas
Industrial control systems
Consumer electronics
IoT devices
Automotive applications
Product Lifecycle
Obsolete status, which means production may have ceased and support may be limited
Replacement or upgrade options may need to be evaluated
Key Reasons to Choose This Product
Robust ARM7® core capable of handling complex tasks efficiently
Generous on-chip memory for advanced applications
Flexible connectivity options to cater to a broad range of peripherals and protocols
Fit for extreme temperature range applications from -40°C to 85°C
The product's obsolescence indicates a stable platform with widespread adoption and support, though alternatives should be considered for new designs