ATSAM4SA16BB-AN

Overview

The ATSAM4SA16BB-AN is a 32-bit microcontroller from the Microchip SAM4S series, built on the ARM Cortex-M4 core. It operates at a maximum frequency of 120 MHz and includes 1 MB of Flash memory and 160 KB of SRAM. The device supports a supply voltage range of 1.62 V to 3.6 V and features an integrated internal oscillator. Connectivity options include USB, SPI, I2C, UART/USART, SSC, IrDA, and SD/MMC interfaces. It provides 79 general-purpose I/Os and incorporates peripherals such as DMA, PWM, WDT, and brown-out detection/reset circuits.

Feature Summary

• High-performance processing via the 32-bit ARM Cortex-M4 RISC processor with hardware DSP instructions.
• Integrated full-speed USB Device Port for direct communication capabilities.
• Flexible peripheral set supporting multiple serial communication protocols including SPI, I2C, and USART.
• Dual-bank Flash implementation with cache memory to optimize code execution speed.

Applications

• Industrial control systems requiring robust real-time processing
• USB-enabled consumer electronic devices
• Motor control applications utilizing DSP capabilities
• Data acquisition systems with analog input requirements

Procurement Notes

Verify the specific package type and temperature grade against project requirements before ordering. Confirm that the 1.62 V to 3.6 V operating voltage aligns with the system power design. Ensure compatibility with existing development tools and software frameworks provided by Microchip for the SAM4S family.

Selection Notes

Select this component when high computational throughput is needed alongside substantial onboard memory. The inclusion of a USB interface simplifies connectivity for data logging or configuration tasks. Consider the 160 KB SRAM size relative to application stack and heap requirements. Evaluate the 79 available I/Os to ensure sufficient pins for external peripheral interfacing.

Part Context

This part belongs to the SAM4S series of Flash microcontrollers based on the ARM Cortex-M4 processor. The series offers varying memory configurations and package options to suit different application scales. The ATSAM4SA16BB-AN represents a mid-to-high capacity option within this lineup, balancing performance with extensive peripheral support for complex embedded tasks.

Replacement Considerations

Consult the official SAM4S Family Datasheet for verified pin-compatible or functionally equivalent alternatives. Cross-reference memory sizes and package dimensions when evaluating substitutes. Verify that any replacement maintains the required 120 MHz operational speed and USB functionality.