ATSAM4S16BA-ANR

Overview

The ATSAM4S16BA-ANR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at speeds up to 120 MHz. It features 1 MB of in-system programmable Flash memory and 128 KB of SRAM. The device supports a supply voltage range of 1.62 V to 3.6 V and includes an internal oscillator. Connectivity options include EBI/EMI, I2C, IrDA, SPI, SSC, UART/USART, and USB interfaces. It provides 47 general-purpose I/O lines and integrates multiple peripherals such as DMA, PWM, and watchdog timers.

Feature Summary

• Integrates a high-performance ARM Cortex-M4 processor with single-cycle multiplication and hardware divide capabilities for efficient signal processing.
• Includes extensive connectivity modules supporting serial communication protocols and external memory expansion via dedicated bus interfaces.
• Features integrated analog-to-digital conversion and pulse width modulation units for precise control and monitoring applications.

Applications

• Industrial control systems requiring robust real-time processing
• Smart metering and utility infrastructure devices
• Medical equipment with strict reliability standards

Procurement Notes

Verify the specific suffix ANR against official Microchip documentation to confirm tape-and-reel packaging and temperature grade. Ensure compatibility with existing PCB footprints for the LQFP package variant. Cross-reference the latest datasheet revision for any errata or pinout modifications before finalizing procurement orders.

Selection Notes

Select this component when a balance of high-speed processing and moderate I/O count is required within a compact surface-mount package. Compare RAM and Flash capacities against alternative SAM4S variants to ensure sufficient memory headroom for application firmware and data storage requirements.

Part Context

This part belongs to the SAM4S series of 32-bit microcontrollers designed for cost-sensitive applications. The series utilizes the ARM Cortex-M4 architecture to deliver performance levels suitable for complex control loops while maintaining low power consumption characteristics typical of modern embedded systems.

Replacement Considerations

Consult official substitution lists for equivalent parts within the SAM4S family. Verify that candidate replacements match the exact Flash size, SRAM capacity, and package dimensions to ensure mechanical and functional compatibility without redesigning the host circuit board.