ATSAM4S16CA-ANR

Overview

The ATSAM4S16CA-ANR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 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 integrated analog-to-digital converters (16 channels, 12-bit) and digital-to-analog converters (2 channels, 12-bit). Connectivity options include USB, SPI, I2C, USART, SSC, IrDA, and external bus interfaces. It is housed in a 100-pin LQFP package with an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor with hardware floating-point unit for efficient signal processing.
• Provides extensive connectivity through built-in USB Full-Speed controller and multiple serial communication interfaces.
• Includes high-resolution data converters suitable for precision sensor interfacing and audio applications.
• Supports flexible memory expansion via External Bus Interface for additional program or data storage.

Applications

• Industrial control systems requiring robust communication protocols
• Medical devices utilizing precise analog signal acquisition
• Consumer electronics featuring USB connectivity
• Smart metering applications demanding secure code execution

Procurement Notes

Verify the specific suffix 'ANR' against official Microchip documentation to confirm packaging type and moisture sensitivity level. Ensure compatibility with required operating temperature ranges and voltage specifications before integration. Cross-reference pinouts and electrical characteristics with the latest datasheet revision to avoid design discrepancies.

Selection Notes

Select this component when a balance of high-performance processing and rich peripheral set is required within a single chip. Consider the 120 MHz speed and 1 MB flash capacity for complex application logic. Evaluate the availability of USB and external bus interfaces if system connectivity demands exceed standard serial ports. Compare power consumption profiles against low-power SAM4L series alternatives if battery operation is critical.

Part Context

This part belongs to the SAM4S family of microcontrollers designed for cost-sensitive applications needing Cortex-M4 performance. It shares architectural similarities with other SAM4 variants but offers specific memory and package configurations tailored for general-purpose embedded control. The family emphasizes ease of development through compatible software frameworks and extensive ecosystem support.

Replacement Considerations

Consult official substitution lists for equivalent parts within the SAM4S series. Verify pin-to-pin compatibility and electrical parameter alignment before replacing existing designs. Check for any changes in package dimensions or thermal characteristics that might impact board layout.